全 文 ：植 物 分 类 学 报 44 (3): 327–339(2006) doi:10.1360/aps040087
Acta Phytotaxonomica Sinica http://www.plantsystematics.com
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Received: 22 July 2004 Accepted: 22 August 2004
Supported by the National Natural Science Foundation of China, Grant No. 30470126.
Notes on the genus Clematis (Ranunculaceae) (VI)
WANG Wen-Tsai
(State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, the Chinese Academy of Sciences,
Beijing 100093, China)
Abstract In this paper, the status of Clematis eriopoda Maxim. and sect. Atragenopsis
Boiss. is discussed, and the species status of the former and the sectional status of the latter
are recognized; two species (C. wenxianensis W. T. Wang, C. malacoclada W. T. Wang) and
one variety (C. hastata Finet & Gagnep. var. micrantha W. T. Wang) are described as new;
one species, C. tubulosa Turcz., which has been erroneously relegated into the synonymy
under C. heracleifolia DC. by Fang and Wang for a long time, is reinstated; C. heracleifolia
var. ichangensis Rehd. & Wils. is transferred to C. tubulosa, and a new combination, C.
tubulosa var. ichangensis (Rehd. & Wils.) W. T. Wang, is made; the fruit description of C.
glabrifolia K. Sun & M. S. Yan is given for the first time.
Key words Clematis, new taxa, taxonomic status, Clematis eriopoda, sect. Atragenopsis,
reinstatement, Clematis tubulosa, new combination, Clematis heracleifolia var. ichangensis,
fruit description, Clematis glabrifolia.
Clematis L.
Sect. 1. Cheiropsis DC.
Subsect. 1. Hastatae (W. T. Wang) W. T. Wang
1. Clematis hastata Finet & Gagnep. var. micrantha W. T. Wang, var. nov. Type: China.
Shaanxi (陕西): Hanzhong (汉中), Nanliugou (南柳沟), alt. 700 m, fl. pink, 1959-03-17, P. Y.
Li 1072 (holotype, WUK).
小花戟状铁线莲 Fig. 2: C, D
A var. hastata differt floribus minoribus circ. 1.6 cm diam., sepalis minoribus 8–9 mm
longis 2.5–3 mm latis extus velutinis.
This new variety differs from var. hastata in its smaller flowers ca. 1.6 cm in diam., with
sepals 8–9 mm long, 2.5–3 mm broad, and outside densely velutinous. In var. hastata, an
endemic in northern Sichuan Province, the flowers are larger, 2.5–4 cm in diam., with sepals
1–2.2 cm long, 0.4–1 cm broad, outside densely appressed-puberulous (Wang, 2002).
2. Clematis glabrifolia K. Sun & M. S. Yan in Bull. Bot. Res. Harbin 12: 327, pl. 3, figs. 1–6.
1992; Grey-Wilson, Clematis 79. 2000; W. T. Wang & Barth. in Fl. China 6: 345. 2001; W. T.
Wang in Acta Phytotax. Sin. 40: 230, fig. 10: 4, 5. 2002. Type: China. Gansu (甘肃): Wen
Xian (文县), Fanba (范坝), 1988-03-27, X. D. Wang & K. Sun 251 (holotype, NWNU!;
isotype, PE!).
光叶铁线莲
Ad descriptionem originalem addenda, acheniis adhuc ignotis: Achenia complanata, late
ovata, 3–3.2 mm longa, 3.2–3.5 mm lata, sericeo-puberula, margine prominula, stylis
persistentibus 2.8–3.6 cm longis albo-plumosis.
Achenes flattened, broadly ovate, 3–3.2×3.2–3.5 mm, sericeous-puberulous, margin
slightly prominent; persistent styles 2.8–3.6 cm long, white-plumose.
Acta Phytotaxonomica Sinica Vol. 44 328
Specimen examined.
China. Gansu (甘肃): Wen Xian (文县), Fanba (范坝), 1964-04-08, T. P. Wang 18907 (WUK).
In 1992, C. glabrifolia was described on the basis of a flowering gathering collected from
Fanba, Wen Xian, Gansu Province, and till now the fruits of this species has been unknown.
Recently, from the specimens borrowed from WUK I found out a fruiting specimen of this
species, collected from the type locality of C. glabrifolia by the late Professor Wang Tso-Pin in
1964. On the basis of this specimen the description of the fruits is given as above.
Subsect. 2. Cirrhosae Prantl.
3. Clematis eriopoda Maxim. in Bull. Acad. Sci. St. Pétersb. 22: 223. 1876; Kuntze in Verh.
Bot. Ver. Brand. 26: 165. 1885; Huth in Bull. Herb. Boiss. 5: 1064. 1897; Makino in Bot. Mag.
Tokyo 8: 332. 1897; Matsumura, Ind. Pl. Japon. 2: 110. 1912; Makino & Tanaka, Man. Fl.
Nippon 192. 1927; Ohwi, Fl. Japan 514. 1956, in Japanese; et Fl. Japan 442. 1965, in English;
Ohwi & Kitagawa, New Fl. Japan 681. 1992, in Japanese.——C. eriopoda var. normalis
Kuntze in l.c. Type: “Hab. in Japonia, unde specimen cultum attulit ex itinere primod. Siebold”
(holotype, LE!).
Fig. 1
Woody vine. Hornotinous branch subterete or inconspicuously 6-angulate, shallowly
6-sulcate, sparsely appressed-puberulous. Leaves opposite; leaf blade thickly papery,
triangular or deltoid in outline, 2–4×1.4–2.4 cm, 3-sect, primary segments slenderly stalked,
terminal primary segments also 3-sect, secondary segments ovate in outline subsessile or
shortly stalked, 2–3-sect or 2–3-parted, ultimate lobes linear-lanceolate or linear, 1.5–5 mm
broad, apex slightly obtuse, margin 1–2-dentate or entire, on both surfaces very sparsely
puberulous; petioles 1.4–1.9 cm long. Cyme 1-flowered; peduncle ca. 6 cm long; bracts
opposite, petiolate, petiole ca. 1 cm long, blade rhombic-ovate, ca. 2.2 cm long, base cuneate,
margin serrate above the middle. Flower ca. 2 cm in diam.; pedicel ca. 9 mm long, velutinous.
Sepals 4, erect, oblong-elliptic, ca. 20×8 mm, inside glabrous, outside densely appressed
sericeous-pubescent, but on the very margin glabrous, apex slightly obtuse. Stamens
numerous, ca. 12 mm long, glabrous; filaments narrowly linear; anthers narrowly oblong, ca.
2.5 mm long, apex obtuse. Carpels numerous; ovaries densely pubescent; styles ca. 11 mm
long, densely villous.
? S Europe. Known only from the holotype.
In 1876, on the basis of a single flowering specimen, Siebold s.n., collected from a plant
cultivated in Japan, Maximowicz described Clematis eriopoda Maxim. He correctly placed
this new species under sect. Cheiropsis, and correctly pointed out that it is more or less related
to C. balearica Rich. (C. cirrhosa L. var. balearica (Rich.) Willk.—Wang, 2002) in habit and
floral structure. In his monograph of Clematis, Kuntze (1885) placed C. eriopoda under sect.
2. Scandentes perulatae, and incorrectly pointed out that C. eriopoda is related to C. tibetana
Kuntze (a member of sect. Meclatis (Spach) Baillon) and C. pseudoorientalis Kuntze (a
synonym of C. ispahanica Boiss., a member of sect. Clematis subsect. Angustifoliae Tamura
—Wang, 2003). In the morphological description given by him, Kuntze erroneously described
the stamen filaments as pilose, and he erroneously transferred C. orientalis L. var. wilfordii
Maxim. (a synonym of C. serratifolia Rehd., a member of sect. Meclatis) to C. eriopoda as its
variety. From what just mentioned, it can be seen that Kuntze entirely overlooked the
statements about the systematic position and the relationship of C. eriopoda given by
Maximowicz. In Prantl’s classification of Clematis (1888), C. eriopoda was not included, but
it has been recorded in several checklists of the Japanese plants or of the Japanese Clematis
(e.g. Huth, 1897; Makino, 1897; Matsumura, 1912) and included in the floristic works of
Japan published by Ohwi (1956, 1965) and Ohwi & Kitagawa (1992), who indicated that this
species is obscure to them. This species was not mentioned in the two accounts of the Japanese
No. 3 WANG Wen-Tsai: Notes on the genus Clematis (Ranunculaceae) (VI) 329
Clematis written by Kitamura & Murata (1980) and by Tamura (1982) respectively, and in the
two revisions of the genus Clematis published recently by Johnson (1997) and by Grey-Wilson
(2000) respectively.



Fig. 1. Photograph of the holotype of Clematis eriopoda Maxim. (Siebold s.n., LE). Photographed by L. Q. LI.

Acta Phytotaxonomica Sinica Vol. 44 330


Fig. 2. A, B, Clematis wenxianensis W. T. Wang. A, flowering branch; B, stamen. Drawn from T. P. Wang 19097. C,
D, C. hastata Finet & Gagnep. var. micrantha W. T. Wang. C, flowering branch; D, stamen. Drawn from P. Y. Li 1072.
No. 3 WANG Wen-Tsai: Notes on the genus Clematis (Ranunculaceae) (VI) 331
Recently, I examined the photograph of the holotype (Fig. 1) and the original description
of C. eriopoda, and agreed with Maximowicz in that C. eriopoda is really a close ally of C.
balearica Rich. (C. cirrhosa L. var. balearica (Rich.) Willk.), an endemic of southwestern
Europe (Wang, 2002). Clematis eriopoda differs from C. balearica mainly in its cyme with
two free, petiolate, ovate bracts. In view of the close relationship between the two plants, it
may be assumed that C. eriopoda should be a native of southern Europe rather than Japan, and
that this rare, curious species may be rediscovered in southern Europe.
Sect. 2. Clematis subsect. Rectae Prantl.
4. Clematis wenxianensis W. T. Wang, sp. nov. Type: China. Gansu (甘肃): Wen Xian (文县),
Baimayu (白马峪), alt. 1000 m, roadside, fl. white, 1964-04-30, T. P. Wang 19097 (holotype,
WUK).
文县铁线莲 Fig. 2: A, B
Ob structuram floralem species nova haec ad sect. Clematidem subsect. Rectas Prantl
pertinens et fortasse affinis C. obscurae Maxim., quae plantis totis siccitate nigrescentibus,
ramis hornotinis vadose 6–10-sulcatis, cymis 1–3(–5)-floris haud paniculiformibus
distinguitur.
Liana lignosa. Rami hornotini subteretes, vadose 14-sulcati, sparsissime puberuli, ad
nodos dense pubescentes. Folia opposita, bipinnata; pinnae 2-jugatae, remotae, graciliter
stipitatae; foliola papyracea, anguste ovata, anguste elliptica, vel ovata, 1.2–3 cm longa,
0.4–1.6 cm lata, apice acuta, basi late cuneata, margine integra, plerumque indivisa, interdum
inaequaliter 2-partita, supra sparse puberula vel subglabra, subtus ad costas sparse pilosa,
nervis basalibus 3 fere planis vel prominulis; petioli circ. 1.8 cm longi, sparse pubescentes.
Cymae axillares, 7–9-florae, paniculiformes; pedunculi 5–6.5 cm longi, subglabri vel prope
apicem puberuli; bracteae graciliter petiolatae, ternatae, foliolis terminalibus majoribus late
lanceolatis 2–2.8 cm longis, eis lateralibus anguste ellipticis vel anguste ovatis 0.8–1.5 cm
longis. Flos 2.8–3.2 cm diam.; pedicellus 3.5–6.5 cm longus, glaber. Sepala 4–6, patentia, alba,
tenuiter papyracea, obovato-oblonga vel oblonga, 15–20 mm longa, 4–5.2 mm lata, apice
apiculata, intus glabra, extus ad marginem tantum velutina, alibi glabra. Stamina numerosa,
5–8 mm longa, glabra, filamentis linearibus 1–4 mm longis, antheris linearibus vel late
linearibus 4–4.6 mm longis apice obtusis. Carpella 7–10, circ. 6 mm longa, ovariis puberulis,
stylis circ. 5 mm longis dense villosis.
Woody vine. Hornotinous branches subterete, shallowly 14-sulcate, very sparsely
puberulous, on nodes densely pubescent. Leaves opposite, bipinnate; pinnae 2 pairs, remote,
with slender stalks; leaflets papery, narrowly ovate, narrowly elliptic, or ovate, 1.2–3×0.4–1.6
cm, apex acute, base broadly cuneate, margin usually undivided, sometimes unequally
2-parted, adaxially sparsely puberulous or subglabrous, abaxially on midrib sparsely pilose,
basal veins 3, nearly flat or slightly prominent; petioles circ. 1.8 cm long, sparsely pubescent.
Cymes axillary, 7–9-flowered, panicle-like; peduncles 5–6.5 cm long, subglabrous or near
apex puberulous; bracts slenderly petiolate, ternate, terminal leaflets larger, broadly lanceolate,
2–2.8 cm long, lateral leaflets narrowly elliptic or narrowly ovate, 0.8–1.5 cm long. Flower
2.8–3.2 cm in diam.; pedicel 3.5–6.5 cm long, glabrous. Sepals 4–6, spreading, white, thinly
papery, obovate-oblong or oblong, 15–20×4–5.2 mm, apex apiculate, inside glabrous, outside
on margin velutinous, elsewhere glabrous. Stamens numerous, 5–8 mm long, glabrous;
filaments linear, 1–4 mm long; anthers linear or broadly linear, 4–4.6 mm long, apex obtuse.
Carpels 7–10, ca. 6 mm long; ovaries puberulous; styles ca. 5 mm long, densely villous. Fl.
Apr.–May.
China (S Gansu). On hill slope; alt. 1000 m.
From the floral structure, this new species should belong to sect. Clematis subsect. Rectae
Prantl, and may be related to C. obscura Maxim, but differs in the plant not turning black
Acta Phytotaxonomica Sinica Vol. 44 332
when dry, the 14-sulcate hornotinous branches, and the axillary 7–9-flowered panicle-like
cymes. In C. obscura, the entire plant turns black when dry, the hornotinous branches are
6–10-sulcate, and the axillary cymes are 1–3(–5)-flowered and not panicle-like (Wang, 2003).
Sect. 3. Aspidanthera Spach subsect. Dioicae (Prantl) W. T. Wang
5. Clematis malacoclada W. T. Wang, sp. nov. Type: Mexico. Puerto de El Aire, 10 km al
Sureste de Joya Fria, municipio de Victorio, alt. 2000 m, bosque de pino, ladera de cerro,
arbusto trepador, flores blancas, 1989-06-08, E. Ventura & E. Lopez 6769 (holotype, MO).
Fig. 3
Affinis C. thalictroidi Steud., quae foliolis majoribus usque ad 10(–14) cm longis 7(–12)
cm latis subtus pilis 0.8–1 mm longis tectis, inflorescentiarum nodis superioribus umbellatis
4–7-floris differt.
Liana lignosa, dioica. Rami hornotini 2.2–2.8 mm crassi, 6-angulati, vadose 6-sulcati,
pilis subpatentibus 0.6–0.8 mm longis et adpressis 0.1–0.3 mm longis intermixtis dense
pubescentes et puberuli vel velutini. Folia opposita, (4–)5-foliolatim pinnata; foliola tenuiter
papyracea, anguste ovata vel elliptico-ovata, 4–6.5 cm longa, 1.5–2.5 cm lata, apice acuminata
vel longe acuminata, basi rotundata, margine utrinsecus 1–3-dentata vel uno latere integra,
supra adpresse pubescentia, subtus dense adpresseque sericeo-puberula, pilis 0.1–0.6 mm
longis, nervis basalibus leviter prominulis; petioli 3–5.5 cm longi, cum foliorum rhachidibus
dense puberuli. Inflorenscentiae staminatae axillares et terminales, multiflorae, paniculiformes,
nodis haud umbellatis; pedunculi 3–4 cm longi, dense puberuli; bracteae subulatae, 4–5 mm
longae, dense puberulae. Flos staminatus juvenilis 3 mm diam.; pedicellus 2–3 mm longus,
dense puberulus; sepala 4, oblongo-elliptica, intus ad nervos basales tres adpresse puberula,
extus dense adpresseque puberula, ad marginem velutina; stamina circ. 32, sepalis leviter
breviora, glabra, filamentis linearibus, antheris oblongis apice obtusis. Inflorescentia pistillata
terminalis multiflora, paniculiformis, nodis haud umbellatis; bracteae foliaceae. Flos pistillatus
circ. 1.4 cm diam.; pedicellus 8–12 mm longus, dense puberulus; sepala 4, alba, anguste
obovato-oblonga, circ. 7 mm longa, 2–2.2 mm lata, apice leviter acuta vel obtusa, intus sparse
puberula, extus dense adpresseque puberula, ad marginem velutina; staminodia 30–40, 5.5–7
mm long, glabra, antheris sterilibus oblongis circ. 0.8 mm longis; carpella 14–24, circ. 6 mm
longa, ovariis dense pubescentibus, stylis circ. 5.5 mm longis dense villosis.
Woody vine, dioecious. Hornotinous branches 2.2–2.8 mm thick, 6-angulate, densely
pubescent and puberulous, or velutinous, with spreading hairs 0.6–0.8 mm long and appressed
ones 0.1–0.3 mm long. Leaves opposite, pinnate, (4–)5-foliolate; leaflets thinly papery,
narrowly ovate or elliptic-ovate, 4–6.5×1.5–2.5 cm, apex acuminate or long acuminate, base
rounded, margin 1–3-dentate per side or at one side entire, adaxially appressed-pubescent,
abaxially densely appressed-sericeous-puberulous, basal veins slightly prominent; petioles
3–5.5 cm long, with leaf rachis densely puberulous. Staminate inflorescences axillary and
terminal, many-flowered, panicle-like, nodes not umbellate; peduncles 3–4 cm long, densely
puberulous; bracts subulate, 4–5 mm long, densely puberulous. Staminate flower (still very
young) 3 mm in diam.; pedicel 2–3 mm long, densely puberulous; sepals 4, oblong-elliptic,
inside on 3 basal veins appressed-puberulous, outside densely appressed-puberulous, on
margin velutinous; stamens ca. 32, slightly shorter than sepals, glabrous, filaments linear,
anthers oblong, apex obtuse. Pistillate inflorescence terminal, many-flowered, panicle-like,
nodes not umbellate; bracts leaf-like. Pistillate flower ca. 1.4 cm in diam.; pedicel 8–12 mm
long, densely puberulous; sepals 4, white, narrowly obovate-oblong, ca. 7×2–2.2 mm, apex
slightly acute or obtuse, inside sparsely puberulous, outside densely appressed-puberulous, on
margin velutinous; staminodes 30–40, 5.5–7 mm long, glabrous, sterile anthers oblong, ca. 0.8
mm long; carpels 14–24, ca. 6 mm long, ovaries pubescent, styles ca. 5.5 mm long, densely
villous. Fl. Jun.

No. 3 WANG Wen-Tsai: Notes on the genus Clematis (Ranunculaceae) (VI) 333


Fig. 3. Clematis malacoclada W. T. Wang. A, staminate flowering branch; B, young staminate flower; C, pistillate
flowering branch; D, sepal outside of pistillate flower; E, staminode. Drawn from Ventura & Lopez 6769.
Acta Phytotaxonomica Sinica Vol. 44 334
Mexico. In pine forest on hill slope; alt. 2000 m.
This new species is related to C. thalictroides Steud., but differs in its smaller leaflets
with short hairs on abaxial surface, and in its not umbellate inflorescence nodes. In C.
thalictroides, the leaflets are larger, up to 10(–14) cm long, 7(–12) cm broad, abaxially
covered with hairs 0.8–1 mm long, and the upper nodes of inflorescence are umbellately
4–7-flowered (Wang, 2004).
Sect. 4. Tubulosae Decne.
Recently, after examining the herbarium material and the original descriptions of
Clematis heracleifolia DC., C. tubulosa Turcz., and C. heracleifolia DC. var. ichangensis
Rehd. & Wils., I realized that Handel-Mazzetti (1939) had incorrectly referred some
specimens of C. heracleifolia var. ichangensis and perhaps C. tubulosa to C. heracleifolia, and
that I (Anonymous, 1972) had misidentified the specimens of C. tubulosa also as C.
heracleifolia, and that Fang (1980) and Wang & Bartholomew (2001) all erroneously relegated
C. tubulosa and C. heracleifolia var. ichangensis into the synonymy under C. heracleifolia. In
fact, C. heracleifolia is easily distinguished from C. tubulosa by having more or less slender,
longer (1.2–3.4 cm) and densely puberulous pedicels, sepals not differentiated into upper and
lower two parts, and tricolpate pollen (Xie, 2005). In C. tubulosa, the pedicels are robust,
shorter (0.3–2 cm long), and densely velutinous, the sepals are differentiated into upper elliptic
limb-like parts and lower linear claw-like parts, and the pollen is pantoporate (Zhang, 1987*).
From the remarkable differences between the two species just mentioned, C. tubulosa should
be reinstated. Clematis heracleifolia var. ichangensis described from western Hubei and
southern Shaanxi seems really closely related to C. tubulosa, in having fasciculate flowers and
robust, short, and densely velutinous pedicels, but differs only in its narrowly obovate-oblong
sepals. (Unfortunately, the pollen morphology of C. heracleifolia var. ichangensis has not yet
been reported.) As such, this variety is transferred to C. tubulosa from C. heracleifolia, and a
new combination is made as follows.
6. Clematis tubulosa Turcz. in Bull. Soc. Nat. Mosc. 10 (7): 148. 1837; Maxim. in Bull.
Acad. Sci. St. Pétersb. 22: 214. 1876; Kitagawa in J. Jap. Bot. 13: 356. 1937; et Lineam. Pl.
Mansh. 219. 1939; Liou et al., Clav. Pl. Chinae Bor.-Or. 78, pl. 13, fig. 4. 1959; M. Johnson,
Klematis 277. 1997; Grey-Wilson, Clematis 192. 2000.——C. heracleifolia DC. ssp. normalis
Kuntze var. tubulosa (Turcz.) Kuntze in Verh. Bot. Ver. Brand. 26: 183. 1885. Type: “China
boreali”, Kirilow s.n. (holotype, LE!).
C. davidiana Decne. ex Verlot in Rev. Hort. 90. 1867, cum icon.; Decne. in Nouv. Arch.
Mus. Hist. Nat. Paris, ser. 2, 4: 204, pl. 10. 1881.——C. tubulosa Turcz. var. davidiana
(Decne. ex Verlot) Franch., Pl. David. 1: 13. 1882.——C. heracleifolia ssp. davidiana (Decne.
ex Verlot) Kuntze in l.c.; Anonymous in Fl. Pl. Herb. Chinae Bor.-Or. 3: 175, pl. 76, figs. 5, 6.
1975, ut var.——C. heracleifolia var. davidiana (Decne. ex Verlot) Forb. & Hemsl. in J. Linn.
Soc. Bot. 23: 4. 1886. Type: China. Beijing (北京): Without precise locality, 1863, David 417
(syntype, P!).
C. heracleifolia auct. non DC.: Anonymous in Iconogr. Corm. Sin. 1: 735, fig. 1469.
1972, p.p.; M. Y. Fang in Fl. Reip. Pop. Sin. 28: 99, fig. 3. 1980, p.p.; Anonymous in Fl.
Jiangsu. 2: 167. 1982; He, Fl. Beijing, rev. ed., 1: 248. 1984, p.p.; J. W. Wang in Fl. Hebei 1:
471. 1986, p.p.; Yang & Moore in Syst. Geogr. Pl. 68: 294. 1999, p.p.; W. T. Wang in High. Pl.
China 3: 531, fig. 851. 2000, p.p.; W. T. Wang & Barth. in Fl. China 6: 370. 2001; J. C. Zhao
et al., High. Pl. Cat. Hebei Prov. China 50. 2005, p.p. quoad fig. 44.


* Zhang Y-L (张镱锂). 1987. Pollen morphology of some sections of Clematis in China and its taxonomic significance. Master’s
Degree Dissertation. Beijing: Beijing Normal University.
No. 3 WANG Wen-Tsai: Notes on the genus Clematis (Ranunculaceae) (VI) 335
6a. var. tubulosa
卷萼铁线莲
Pedicels robust, 0.3–2 cm long, densely velutinous. Sepals during flowering strikingly
reflexed, above elliptic or oblong-elliptic, limb-like, 8–15×4–7(–11) mm, below linear, 10–12
×2–3.5 mm.
China (Beijing, N Hebei, NE Jiangsu, Liaoning, E Shandong, NW Tianjin) and N Korea.
Additional specimens examined.
China. Beijing (北京): Baihua Shan (百花山), C. W. Wang (王启无) 60292 (PE); Nankou (南口), K.
M. Liou (刘继孟) 875 (PE); Shangfang Shan (上方山), Y. Liu (刘瑛) 10463 (PE); Wofosi (卧佛寺), PE
Exped. (植物所标本馆队) 743 (PE); Wuling Shan (雾灵山), W. T. Wang & J. Zhang (王文采, 张敬) 2391
(PE). Hebei (河北): Fuping (阜平), K. M. Liou (刘继孟) 3268 (PE); Laiyuan (涞源), K. M. Liou (刘继孟)
2791 (PE); Qinglong (青龙), Chengde Exped. (承德队) 71-558 (PE); Xiaowutai Shan (小五台山), J. W. Feng
(冯家文) 153 (PE); Yi Xian (易县), X. L. Huang et al. (黄秀兰等) 3323 (PE). Jiangsu (江苏): Ganyu (赣榆),
T. Y. Chou et al. (周太炎等) 21242 (HHBG, NAS). Liaoning (辽宁): Dalian (大连), Z. Wang et al. (王战等)
889 (LE, PE); Fengcheng (凤城), Yabe s.n. (NAS, PE); Shenyang (沈阳), C. S. Wang (王崇书) 3765 (PE).
Shandong (山东): Muping (牟平), Kunyu Shan (昆嵛山), T. N. Liou & K. M. Liou (刘慎谔, 刘继孟) 1391
(PE). Tianjin (天津): Ji Xian (蓟县), S. Y. He (贺士元) 17300 (BNU).
Korea. Prov. Kangwon, Mt. Taeam-san, Yun-ho Chung & Young-moo Kang s.n. (US).
6b. var. ichangensis (Rehd. & Wils.) W. T. Wang, comb. nov.——C. heracleifolia DC. var.
ichangensis Rehd. & Wils. in Sarg., Pl. Wils. 1: 321. 1913; Kitagawa in J. Jap. Bot. 13: 354.
1937; Hand.-Mazz. in Acta Hort. Gotob. 13: 191. 1939. Type: China. Hubei (湖北): Yichang
(宜昌), 1907-08, E. H. Wilson 763 (holotype, GH!; isotype, K!); Without precise locality, A.
Henry 4359 (paratypes, G!, GH!). Shaanxi (陕西): Taibai Shan (太白山), 1910, Purdom 1010
(paratypes, GH!, K!).
C. heracleifolia auct. non DC.: Hand.-Mazz. in l.c. p.p. quoad H. Smith 5952;
Anonymous in Iconogr. Corm. Sin. 1: 735. 1972, p.p.; Anonymous in Fl. Tsinling. 1 (2): 287,
fig. 246. 1974; Anonymous in Fl. Hupeh. 1: 362, fig. 506. 1976; M. Y. Fang in Fl. Reip. Pop.
Sin. 28: 94. 1980, p.p.; Ding et al., Fl. Henan. 1: 447. 1981, p.p.; J. W. Wang in Fl. Hebei 1:
471. 1986, p.p.; X. W. Wang in Fl. Anhui 2: 331. 1986; Z. H. Lin in Fl. Zhejiang 2: 283. 1992;
Y. J. Ling et al. in Fl. Shanxi. 1: 627. 1992, p.p.; W. T. Wang in Keys Vasc. Pl. Wuling Mount.
168. 1995; Y. J. Zheng in Fl. Shandong 2: 22. 1997, p.p.; Yang & Moore in Syst. Geogr. Pl. 68:
294. 1999, p.p.; K. M. Liu in Fl. Hunan. 2: 679. 2000; W. T. Wang & Barth. in Fl. China 6:
370. 2001, p.p.; Z. H. Peng et al., Encycl. Pl. Three Gorg. Yangtze River, China 196. 2005.
狭卷萼铁线莲
Pedicels robust, 0.1–2(–3) cm long, densely velutinous. Sepals during flowering slightly
reflexed, narrowly obovate-oblong, 11–21×3–6 mm.
China (W & S Anhui, E Guizhou, SW Hebei, Henan, Hubei, W Hunan, S Shaanxi,
Shandong, Shanxi, NW Zhejiang).
Additional specimens examined.
China. Anhui (安徽): Huang Shan (黄山), M. Chen (陈谋) 1312 (IBSC, NAS, PE); Jinzhai (金寨), Pl.
Res. Exped. (植物资源队) Da0079 (PE). Guizhou (贵州): Shibing (施秉), Wulingshan Exped. (武陵山队)
2570 (PE). Hebei (河北): Xingtai (邢台), H. F. Chow (周汉藩) 43474 (PE). Henan (河南): Jigong Shan (鸡
公山), Steward 980 (US); Lushi (卢氏), K. M. Liou (刘继孟) 4813 (PE); Song Xian (嵩县), Henan Exped.
(河南队) 59-34893 (PE). Hunan (湖南): Yuanling (沅陵), G. C. Zhang (张桂才) 564 (PE). Shaanxi (陕西):
Hua Shan (华山), K. S. Hao (郝景盛) 3979 (PE); Shanyang (山阳), T. P. Wang (王作宾) 16367 (IBSC, PE).
Shandong (山东): Tai Shan (泰山), T. Y. Chou et al. 7514 (NAS, PE); Yantai (烟台), 1890-02, Faber 253 (K,
LE). Shanxi (山西): Jincheng (晋城), S. Y. Bao (包士英) 339 (PE); Yuncheng (运城), H. Smith 5952 (PE,
UPS); Wutai Shan (五台山), K. C. Kuan & Y. L. Chen (关克俭, 陈艺林) 2515 (PE). Zhejiang (浙江):
Xitianmu Shan (西天目山), X. Y. He (贺贤育) 25728 (NAS, PE).
Acta Phytotaxonomica Sinica Vol. 44 336
Sect. 5. Atragenopsis Boiss., Fl. Or. Suppl. 2. 1888; W. T. Wang in Acta Phytotax. Sin. 43:
485. 2005. Type: C. robertsiana Aitch. & Hemsl.
Woody vines. Seedling leaves unknown (Essig, 1991). Leaves opposite, biternate.
Flowers large, solitary, terminal on hornotinous branches, slightly pendulous. Sepals 4,
yellowish, spreading (?), membranous, oblong-ovate, outside along margin densely
appressed-puberulous, elsewhere glabrous. Stamens numerous, hairy, the outer ones larger,
with widened oblanceolate filaments and divergent anthers, the inner ones inward gradually
diminished, with broadly linear or linear filaments and not divergent oblong anthers. Carpels
numerous; persistent styles elongate, plumose.
Species one, endemic to N Pakistan.
In the protologue of the species Clematis robertsiana, the two authors, Aitchison &
Hemsley (Aitchison, 1880), correctly pointed out that “it is an exceedingly interesting species,
forming a connecting-link between Atragene and Clematis proper”. In his monograph of
Clematis, Kuntze (1885) put C. robertsiana near C. japonica Thunb. (a member of sect.
Viorna (Reichb.) Prantl subsect. Bebaenanthera (Edgew.) W. T. Wang) under his sect. 2.
Scandentes perulatae. In the same year of 1888, Prantl in his classification of the Clematis
placed C. robertsiana in sect. Viorna subsect. Atragene (L.) Prantl, while Boissier described a
new monotypic section, sect. Atragenopsis, on the basis of C. robertsiana. In various
classifications of Clematis proposed by Tamura (1967, 1987, 1995), and in that proposed by
Snoeijer (1992), C. robertsiana and sect. Atragenopsis were not included. In the two revisions
of the genus Clematis published by Johnson (1997) and by Grey-Wilson (2000), separately,
just as what Prantl had done in 1888, C. robertsiana was placed in the C. alpina group, which
was placed either in sect. Atragene (L.) DC. or in subgen. Atragene (L.) Torr. & Gray
respectively, and sect. Atragenopsis was not mentioned.
In possessing similar habit and floral structure, C. robertsiana shows a striking
resemblance to the species of sect. Atragene, differing from them mainly in its fertile stamens.
This significant distinguishing character seems to lend support to the establishment of sect.
Atragenopsis, and this monotypic section was accepted by Wang & Li (2005).
In the genus Clematis, the two closely related sections, Atragenopsis and Atragene，
appear to form the fourth evolutionary stock, the C. alpina stock, which, by having showy
flowers and outer hairy stamens with widened filaments or modified into petal-like
staminodes, seems more advanced than the other three ones, the C. montana stock, the C.
vitalba stock, and the C. connata stock (Wang, 2003).
7. Clematis robertsiana Aitch. & Hemsl. in J. Linn. Soc. Bot. 18: 29. 1880; Kuntze in Verh.
Bot. Ver. Brand. 26: 159. 1885; Prantl in Bot. Jahrb. 9: 258. 1888; Boiss., Fl. Or. Suppl. 2.
1888; Tamura in Kitam., Fl. Afghan. 123. 1960; Stewart in Ann. Cat. Vasc. Pl. W. Pakist. &
Kashm. 265. 1972; Qureshi & Chaudhri in Pakist. Syst. 4: 139. 1988; Riedl & Nasir in Ali &
Nasir, Fl. Pakist. no. 193: 85. 1991; Johnson, Klematis 233. 1997; Grey-Wilson, Clematis 185.
2000. Type: Pakistan. Kurram Valley: hill north of Kaiwas, alt. 10000–11000 ft., 1879-07,
Aitchison 733 (syntypes, BM!, G!, LE!, P!, S!).
Fig. 4
Woody vine. Old branches ca. 4 mm in diam., 4–6-angulate, shallowly 4–6-sulcate,
glabrate, smooth; hornotinous branches arising from axillary buds of old branch, 1.5–16 cm
long, puberulous, with 2–3 pairs of leaves; bud scales lanceolate-linear, 1.4–2.5 cm long,
usually abaxially densely appressed-pubescent. Leaves long petiolate; leaf blade deltoid in
outline, 7–13×7–11 cm, glabrous; leaflets herbaceous, mostly lanceolate, some terminal ones
ovate, 2–6.5×0.5–5 cm, apex attenuate, base cuneate, margin 1–3-crenate, obtusely
1–3-dentate, or entire, undivided or 2–3-parted, midribs abaxially slightly prominent; petioles
2.5–5.2 cm long. Flower ca. 10 cm in diam.; pedicel 7–10.5 cm long, robust, glabrous. Sepals
No. 3 WANG Wen-Tsai: Notes on the genus Clematis (Ranunculaceae) (VI) 337


Fig. 4. Clematis robertsiana Aitch. & Hemsl. A, flowering branch; B, sepal outside; C, stamens. Drawn from Maarsukh
14962.

Acta Phytotaxonomica Sinica Vol. 44 338
4, oblong-ovate or suboblong, ca. 6×2–2.4 cm, apex slightly acute. Stamens numerous, 5–20
mm long; filaments 4–16 mm long, 0.8–2 mm broad; anthers oblong or narrowly oblong,
1–3.5 mm long, apex obtuse. Carpels ca. 20, ca. 14 mm long, densely villous. Achenes
compressed, obovate, ca. 4×3 mm, appressed-yellowish-sericeous; persistent styles ca. 2 cm
long, plumose. Fl. June–July.
N Pakistan (Kurram Valley). Rocky scrub and cliffs; alt. 3300–3500 m (Grey-Wilson,
2000).
Additional specimens examined.
Pakistan. Kurram Valley, 1880, Aitchson 340 (LE); the same locality, Aina Mela, 1894-06, Maarsukh
14670, 14962 (GH).
Grey-Wilson (2000) reported that besides occurring in Kurram Valley, Pakistan, C.
robertsiana also occurs in Nagarhar, Afghanistan, which is adjacent to Kurram. Unfortunately,
I have not seen any specimen of this species collected from the latter locality.
Acknowledgements I am most grateful to the directors and curators of BM, BNU, G, GH,
HHBG, IBSC, K, LE, MO, NAS, P, S, UPS, US, and WUK for kindly inviting me to visit their
herbaria and/or sending herbarium material on loan; to N. Fumeaux (G) for kindly providing
some literature; to LI Liang-Qian, YANG Qin-Er, ZHANG Zhi-Yun, and XIE Lei for various
kinds of help during the preparation of this paper; and to SUN Ying-Bao for making the
drawings.
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铁线莲属研究随记(VI)
王文采
(系统与进化植物学国家重点实验室, 中国科学院植物研究所 北京 100093)

摘要 讨论了Clematis eriopoda Maxim.和sect. Atragenopsis Boiss.的地位, 认为这二分类群均应成立;
描述了2新种, 1新变种; 过去长期被归并的卷萼铁线莲C. tubulosa得到恢复; Clematis heracleifolia var.
ichangensis被转移改作卷萼铁线莲的变种; 首次给出光叶铁线莲Clematis glabrifolia的果实的形态描述。
关键词 铁线莲属; 新分类群; 分类学地位; Clematis eriopoda; sect. Atragenopsis; 恢复; Clematis
tubulosa; 新组合; Clematis heracleifolia var. ichangensis; 果实描述; 光叶铁线莲