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加查银莲花(毛茛科)的名实订正(英文)



全 文 :In 2014, Wang[1] described Anemone jiachaensis
W. T. Wang (Ranunculaceae) on the basis of a single
specimen, Z. C. Ni et al. 2734 (PE; Fig. 1: A), from
Jiacha (=Gyaca), southeastern Xizang, China. In the
protologue, he stated that the species was a member
of A. sect. Stolonifera (Ulbr.) Juz., but differed from
all other species of the section by the basal leaves ca.
12 (vs. 1–3) and carpels ca. 70 (vs. 4–16).
In describing Anemone jiachaensis as new, it is
evident that Wang[1] overlooked the older Xizang
species, A. tibetica W. T. Wang, which was described
in 1980 by himself based on a single specimen, Xizang
Herb. Med. Exped. 4423 (PE), from Langxian[2], an area
closely contiguous to Jiacha. We have not been able to
trace the holotype of A. tibetica in PE. Fortunately we
have found a duplicate (Fig. 1: B) from the Herbarium
of Northwest Institute of Plateau Biology, Chinese
Academy of Sciences (HNWP). This specimen had
热带亚热带植物学报 2015, 23(4): 449 ~ 453
Journal of Tropical and Subtropical Botany
Received: 2014–10–16    Accepted: 2014–12–03
This study was supported by the Science and Technology Basic Work of China (2013FY112100).
* Corresponding author. E-mail: qeyang@scib.ac.cn
加查银莲花(毛茛科)的名实订正
张煜1,2, 杨亲二1*
(1. 中国科学院华南植物园, 中国科学院植物资源保护与可持续利用重点实验室, 广州 510650; 2. 中国科学院大学, 北京 100049)

摘要: 通过标本检查,发现毛茛科加查银莲花(Anemone jiachaensis W. T. Wang)与西藏银莲花(A. tibetica W. T. Wang)属于同一
种植物,故将前者处理为后者的异名。加查银莲花发表时被置于鹅掌草组[A. sect. Stolonifera (Ulbr.) Juz.],但其花粉为三沟而
非多沟,与岩生银莲花亚组[A. subsect. Rupicolae (Tamura ex Chaudhary & Trifonova) Starod.]的岩生银莲花(A. rupicola Camb.)(西
藏银莲花亦属于该亚组)的花粉类型一致,而与鹅掌草组植物的多沟花粉明显不同,从而进一步表明加查银莲花与西藏银莲花
确为同一种植物而且应为岩生银莲花亚组的成员。
关键词: 银莲花属; 加查银莲花; 西藏银莲花; 新异名; 花粉形态; 毛茛科
doi: 10.11926/j.issn.1005–3395.2015.04.013

The Identity of Anemone jiachaensis (Ranunculaceae)
ZHANG Yu1,2, YANG Qin-er1*
(1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences,
Guangzhou 510650, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract: Examination of herbarium specimens has shown that Anemone jiachaensis W. T. Wang (Ranunculaceae)
is conspecific with A. tibetica W. T. Wang. We therefore reduce A. jiachaensis to the synonymy of A. tibetica.
When A. jiachaensis was published, it was regarded as a member of A. sect. Stolonifera (Ulbr.) Juz. Its pollen
grains, however, are not stephanocolpate (polycolpate), the pollen type that characterizes Anemone sect. Stolonifera,
but are 3-colpate, the same type as that in A. subsect. Rupicolae (Tamura ex Chaudhary & Trifonova) Starod. This
has further lent strong support for the synonymization of A. jiachaensis with A. tibetica, a member in A. subsect.
Rupicolae.
Key words: Anemone; A. jiachaensis; A. tibetica; New synonymy; Pollen morphology; Ranunculaceae
450 第23卷热带亚热带植物学报
Fig. 1 Specimens of Anemone tibetica (A, B) and A. rupicola (C). A: Z. C. Ni et al. 2734 (holotype of A. jiachaensis, PE), Jiacha (=Gyaca), Xizang,
China; B: Xizang Herb. Med. Exped. 4423 (isotype of A. tibetica, HNWP), Langxian, Xizang, China; C: Xizang Herb. Med. Exped. 4498 (PE),
Langxian, Xizang, China.
第4期 451
been previously identified as A. rupicola Camb., but it
matches perfectly the original description of A. tibetica
and undoubtedly is an isotype of it. After careful
comparison of their type material we are convinced
that A. jiachaensis is identical with A. tibetica in all
essentials. The leaf size is highly variable even in
one individual and thus taxonomically not important.
In the protologue, the carpels of A. jiachaensis were
described to be glabrous, but our re-examination has
confirmed that the ovaries are densely pubescent. It is
justifiable to reduce A. jiachaensis to the synonymy of
A. tibetica.
Wang[1] did not give any reason why he referred
Anemone jiachaensis to A. sect. Stolonifera. It may be
assumed that he did so mainly on account of its sessile
involucral bracts, but such involucral bracts occur also
in some other sections of Anemone L. Palynological
data convincingly show that Wang is wrong to have
placed A. jiachaensis into A. sect. Stolonifera. As
shown in Figure 2, A. jiachaensis (= A. tibetica), just
like A. rupicola, the putative closest ally of A. tibetica,
is 3-colpate (also see Xi and Chang[3], Huynh[4], and
Fang and Yang[5]), whereas A. hofengensis W. T.
Wang, a member of A. sect. Stolonifera, is (5–)6(–7)-
zonocolpate. These results strongly indicate that A.
jiachaensis does not belong to A. sect. Stolonifera,
a group which is well characterized palynologically
by having stephanocolpate (polycolpate) pollen[2,6].
Indeed, as noted by Wang[1], A. jiachaensis appears
to be rather anomalous within A. sect. Stolonifera in
respect of its high number of carpels (ca. 70). On the
basis of a molecular phylogenetic study of Anemone,
Hoot et al.[7] placed A. rupicola, together with A.
hupehensis Lem., A. rivularis Buch.-Ham. ex DC., A.
tomentosum (Maxim.) Pei and A. vitifolia Buch.-Ham.
ex DC., into sect. Rivularidium Jancz. under subgen.
Anemone. This classification has been corroborated
by our recent molecular work of the genus with a
more extensive taxon sampling[8]. In this work, A.
sect. Rivularidium is subdivided into four subsections,
and A. laceratoincisa W. T. Wang, A. rupicola and A.
tibetica are placed into subsect. Rupicolae (Tamura
ex Chaudhary & Trifonova) Starod., although A.
laceratoincisa and A. tibetica have not been included
in the molecular phylogenetic analyses because of
unavailability of DNA material. After A. jiachaensis
is merged with A. tibetica, its high number of carpels
immediately turns out to be quite a harmonious
character within A. subsect. Rupicolae, a group
which is characterized by having numerous carpels.
Furthermore, it can be expected that A. tibetica
should have a chromosome number based on x=8,
the base chromosome number which characterizes
the subgenus Anemone, not a number based on x=7
which characterizes the subgenus Anemonidium
(Spach) Juz. (see Hoot et al.[7] and Zhang et al.[8] for
the new infrageneric classification of Anemone).
Based on the above analyses, we make the
following taxonomic treatment.
Anemone tibetica W. T. Wang in Fl. Reipubl.
Popularis Sin. 28: 349 et 31. 1980; W. T. Wang in Fl.
Xizang. 2: 80. 1985; W. T. Wang et al. in Fl. China
6: 318. 2001. Type: China. Xizang: Langxian, Beng
Village, alt. 3100 m, streamside in ravine, Aug. 18,
1972, Xizang Herb. Med. Exped. 4423 (holotype, PE;
isotype, HNWP!).
A. jiachaensis W. T. Wang in Pl. Divers. Res. 36:
450. 2014. syn. nov. Type: Xizang, Jiacha (=Gyaca),
suburb of the county town, terrace in river valley, alt.
3400 m, Aug. 2, 1980, Z. C. Ni et al. 2743 (holotype,
PE!).
Notes. Prior to the description of Anemone
jiachaensis, A. tibetica had been known only from
its type collection. We agree with Wang[2] that A.
tibetica is closely related to A. rupicola. They seem to
be different mainly in the hairiness of the scape and
leaves, the leaf dissection, and the size and dissection
of involucral bracts. In A. rupicola, the scape, petioles
and both surfaces of the leaf blade are all subglabrous,
the leaves are 3-sect with the segments deeply divided
and incised-dentate, and the involucral bracts are
large, leaf-like, and 3-parted. In A. tibetica, the scape,
petioles and both surfaces of the leaf blade are all
more or less puberulent, the leaves are 3-parted to
-sect with the segments 2- or 3-lobed and denticulate,
张煜等:加查银莲花(毛茛科)的名实订正
452 第23卷热带亚热带植物学报
Fig. 2 Pollen in three species of Anemone (scanning electron microscopy), all same scale. A, B: A. tibetica (3-colpate), Z. C. Ni et al. 2734 (holotype of A.
jiachaensis, PE), Jiacha, Xizang, China; C, D: A. rupicola (3-colpate), M. Tang 868 (IBSC), Yadong, Xizang, China; E, F: A. hofengensis (6-zonocolpate),
J. P. Luo & L. Wang 377 (IBSC), Enshi, Hubei, China.
and the involucral bracts are small, not leaf-like, and
3-lobed or -fid.
Interestingly, Anemone rupicola and A. tibetica
may have different habitat preferences. Just at the type
locality of A. jiachaensis (= A. tibetica), a specimen
of A. rupicola, Xizang Herb. Med. Exped. 4498 (PE;
Fig. 1: C), was collected from a dry mountain at an
altitude of 3800 m, whereas the type specimen of A.
jiachaensis was collected from a river valley at an
altitude of 3400 m.
Distribution and habitat. Anemone tibetica is
distributed in southeastern Xizang (Jiacha, Langxian),
China (Fig. 3). It usually grows at streamside or
riverbank at altitudes of 3100–3400 m.
第4期 453
Fig. 3 Distribution of Anemone tibetica (●).
Acknowledgments  We are indebted to the curators of HNWP
and PE for the permission to use their scanned images of
specimens and for research facilities, and to Dr. S. L. Chen
(HNWP) and Dr. Y. S. Chen (PE) for sending us some images
of type specimens.
References
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张煜等:加查银莲花(毛茛科)的名实订正