全 文 :Received: 2012–10–23 Accepted: 2013–01–14
This study was supported by the National Natural Science Foundation of China (31170186, 31110103911) and the Main Direction Program of
Knowledge Innovation of the Chinese Academy of Sciences (KSCX2-EW-Z-1)
* Corresponding author. E-mail: qeyang@scib.ac.cn
热带亚热带植物学报 2013, 21(4): 351~355
Journal of Tropical and Subtropical Botany
中国橐吾属(菊科-千里光族)的分类学研究(一):
狭舌橐吾的名实订正
任琛, 杨亲二*
(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)
摘要: 由于对模式标本考证有误,狭舌橐吾(Ligularia angustiligulata C. C. Chang)长期以来被处理为沼生橐吾[L. lamarum (Diels)
C. C. Chang]的异名。经我们考证,狭舌橐吾的主模式应为藏于 PE 的蔡希陶 58004 号标本(为唯一有狭舌橐吾的作者张肇骞先
生所写定名签的标本), LBG 藏有 1 份同号模式标本,它们与狭舌橐吾的原白完全吻合,而藏于 KUN (2 份)和 SZ(1 份)的同号
标本与狭舌橐吾的原白在一些重要性状上相冲突,均非狭舌橐吾的模式标本;进而发现狭舌橐吾与叶状鞘橐吾(L. phyllocolea
Hand.-Mazz.)在形态上没有本质区别,故应处理为后者的异名,而藏于 KUN 和 SZ 的 3 份标本均属于沼生橐吾。同时还指出长
柄橐吾(L. longipes C. C. Chang)的名实有待进一步研究,其模式与叶状鞘橐吾有较大区别,似不宜将其处理为叶状鞘橐吾的
异名。
关键词: 菊科; 千里光族; 橐吾属; 分类学
doi: 10.3969/j.issn.1005–3395.2013.04.010
Taxonomic Studies on the Genus Ligularia Cass. (Asteraceae, Senecioneae)
from China (I): The Identity of L. angustiligulata
REN Chen, YANG Qin-er*
(Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences,
Guangzhou 510650, China)
Abstract: Through herbarium and literature surveys, we found that when Liu (in Fl. Reipubl. Popularis Sin. 77(2):
72. 1989) reduced Ligularia angustiligulata C. C. Chang to the synonymy under L. lamarum (Diels) C. C. Chang,
he did not check any authentic type material of the former name, i.e. H. T. Tsai 58004 (LBG, PE). The specimens
he checked, including two sheets at KUN and one sheet at SZ, albeit also numbered H. T. Tsai 58004 and with the
exactly same collection information as the two Tsai specimens at LBG and PE, are in conflict with the protologue
in some important characters and thus do not belong to the type collection of L. angustiligulata. These three sheets
are clearly referable to L. lamarum. The sheet at PE agrees perfectly with the protologue of L. angustiligulata and
is the only specimen bearing the name “L. angustiligulata” in C. C. Chang’s hand, and undoubtedly is the holotype
of this name. The sheet at LBG also fits perfectly the protologue of L. angustiligulata and is thus an isotype of
the name. We determined that L. angustiligulata is not essentially different from L. phyllocolea Hand.-Mazz. and
should be placed in synonymy under the latter. In addition, we found the type material of L. longipes C. C. Chang
to be different from L. phyllocolea in some important characters. Further studies are thus needed to determine the
352 第21卷热带亚热带植物学报
Ligularia angustiligulata C. C. Chang[1] was
described based on a collection from Pi-lo Shan (= Biluo
Xue Shan), Che-tse-lo, Fugong County, northwestern
Yunnan, China, i.e. H. T. Tsai 58004 (PE) (Fig. 1). In
the Flora Reipublicae Popularis Sinicae 77(1), Liu[2]
reduced it to the synonymy under L. lamarum (Diels)
C. C. Chang, a species distributed in southwestern
Gansu, western Sichuan, southeastern Xizang (Tibet),
and northwestern Yunnan. In doing so, Liu[2] stated
that he had checked three sheets of the type collection
of L. angustiligulata, but he did not specify the
herbaria in which these specimens were kept. He found
that these specimens are in conflict with the protologue
of L. angustiligulata in two characters: the leaves of
these specimens are reniform, rather than triangular-
sagittate as given in the original description, and the
bracts are linear, rather than ovate or obovate. The
reniform leaves and the linear bracts are, among other
characters, two important features of L. lamarum
while the triangular-sagittate leaves and the ovate or
obovate bracts are two important features of L. phyllocolea
Hand.-Mazz., a species occurring in northwestern
Yunnan, China, and northeastern Myanmar. As
such, Liu[2] concluded that the type collection of L.
angustiligulata must be a mixed gathering containing
some other material which should agree with the
protologue and very likely belongs to L. phyllocolea.
The treatment of synonymizing L. angustiligulata with
L. lamarum made by Liu has been accepted by Min[3],
and Liu and Illarionova[4] as well.
In the course of surveying specimens of the
genus Ligularia kept in the major Chinese herbaria,
we found five sheets (one each at LBG, PE, and SZ,
and two at KUN) which were all numbered H. T. Tsai
58004 and all collected by the same collector on the
same day from the same locality. In fact, the collection
information of these specimens is exactly the same. Of
these five sheets, the one at PE (Fig. 1) is undoubtedly
the holotype of L. angustiligulata, as it is the only
sheet bearing the name L. angustiligulata in C. C.
Chang’s hand, and it fits perfectly the protologue of L.
angustiligulata. Moreover, Chang[1] explicitly stated that
all the specimens cited in the paper are kept at PE. The
sheet at LBG also agrees perfectly with the protologue,
so this sheet is an isotype of L. angustiligulata. The
remaining three sheets at KUN and SZ (one of them is
shown in Fig. 2) match perfectly with each other and
should belong to an independent gathering of their own,
which is clearly referable to L. lamarum. Obviously,
Liu[2] has by mistake regarded this gathering as belonging
to the type material of L. angustiligulata, and it is
certain that he has never examined any authentic
type material of this name, which has resulted in his
erroneous placement of the name in synonymy under L.
lamarum. After examining carefully the type material
of L. angustiligulata, we have determined that it is not
essentially different from L. phyllocolea.
Ligularia phyllocolea Hand.-Mazz. in Bot.
Jahrb. Syst. 69: 138. 1938; S. W. Liu in Fl. Reipubl.
Popularis Sin. 77(2): 72. 1989, p.p., excl. syn.; T. L. Min
in Fl. Yunnan. 13: 498. 2004, p.p.; Liu & I. D. Illar.
in Fl. China 20–21: 409. 2011, p.p., excl. syn. TYPE:
Myanmar: northeastern Myanmar, Fengshuiling, alt.
2300 m, Sept. 9, 1919, Farrer 1294 (holotype, E!).
L. angustiligulata C. C. Chang in Acta Phytotax.
Sin. 1: 321. 1951. TYPE: China. Yunnan: Fugong, Che-
tse-lo, Pi-lo Shan (= Bilo Xue Shan), alt. 4000 m, Aug. 18,
1934, H. T. Tsai 58004 (holotype, PE!; isotype, LBG!).
Notes. Liu[2] reduced Ligularia longipes C. C.
Chang to the synonymy under L. phyllocolea. The
former was described based on a single gathering with
only one sheet from Gongshan, northwestern Yunnan,
China, i.e. C. W. Wang 67355 (PE) (Fig. 3). From this
specimen it can be seen that L. longipes has wider
involucres, more florets per capitulum, and much
smaller bracts at base of peduncles than L. phyllocolea,
and thus may not belong to the latter. Further studies
identity of L. longipes, which is currently placed in synonymy under L. phyllocolea.
Key words: Asteraceae; Senecioneae; Ligularia Cass.; Taxonomy
第4期 353
Fig. 1 Ligularia phyllocolea Hand.-Mazz. H. T. Tsai 58004 (PE) (holotype of L. angustiligulata C. C. Chang), Pi-lo Shan (= Biluo Xue Shan), Che-tse-
lo, Fugong County, northwestern Yunnan, China.
任琛等:中国橐吾属(菊科-千里光族)的分类学研究(一):狭舌橐吾的名实订正
are needed to determine the identity of L. longipes.
Additional specimens examined. China. Yunnan:
Fugong, S. K. Wu 8884 (KUN); Lanping, S. K. Wu
8974 (KUN), H. T. Tsai 54036 (KUN, PE); Tongchong,
Howell 135 (E); Weixi, H. T. Tsai 59694 (KUN, PE),
63112 (PE), Yunnan Inst. Drug Contr. 610125 (KUN).
Distribution and habitat. Ligularia phyllocolea is
distributed in western and northwestern Yunnan, China,
and northeastern Myanmar. It grows in alpine meadows or
along stream banks in forests at altitudes of 2100 – 4000 m.
354 第21卷热带亚热带植物学报
Fig. 2 Ligularia lamarum (Diels) C. C. Chang. H. T. Tsai 58004 (KUN), Pi-lo Shan (= Biluo Xue Shan), Che-tse-lo, Fugong County, northwestern
Yunnan, China.
第4期 355
Fig. 3 C. W. Wang 67355 (PE) (holotype of Ligularia longipes C. C. Chang), Chi-na-tung, Cham-pu-tung, Gongshan County, northwestern Yunnan,
China.
任琛等:中国橐吾属(菊科-千里光族)的分类学研究(一):狭舌橐吾的名实订正
Acknowledgments We are grateful to the curators of KUN,
LBG, PE, and SZ for the permission to use their scanned
images of specimens and for research facilities.
References
[1] Chang C C. New species of Senecio and its allied genera [J]. Acta
Phytotax Sin, 1951, 1 (3/4): 313–323.
[2] Liu S W. Ligularia Cass. [M]// Flora Reipublicae Popularis
Sinicae, Tomus 77(2). Beijing: Science Press, 1999: 4–304.
[3] Min T L. Ligularia Cass. [M]// Flora Yunnanica, Tomus 13.
Beijing: Science Press, 2004: 466–515.
[4] Liu S W, Illarionova I D. Ligularia Cass. [M]// Flora of China,
Vol. 20–21. Beijing: Science Press; St. Louis: Missouri Botanical
Garden Press, 2011: 376–415.