全 文 ：热带亚热带植物学报　2012， 20(4)： 403~406
Journal of Tropical and Subtropical Botany
中国莎草科一新记录种——菊芳薹草
余丽莹1, 黄云峰2, 许为斌3, 邓云飞4*
(1. 广西壮族自治区药用植物园，广西药用植物资源保护与遗传改良重点实验室，南宁 530023； 2. 广西中医药研究院，南宁 530022； 3. 广西壮
族自治区中国科学院广西植物研究所，广西 桂林 541006； 4. 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： 报道了中国莎草科(Cyperaceae)薹草属一新记录种——菊芳薹草(Carex trongii K. K. Nguyen)。该种分布于我国广西与
越南交界地区的石灰岩地区。菊芳薹草与宽叶薹草组(Carex sect. Siderostictae Ohwi)的种类在形态上近似，但以秆中生和果囊
密被糙毛而易于区别。提供了菊芳薹草的形态描述和线条图。
关键词： 莎草科； 薹草属； 宽叶薹草组； 菊芳薹草； 中国
doi: 10.3969/j.issn.1005–3395.2012.04.014
Carex trongii K. K. Nguyen, A Newly Recorded Species of Cyperaceae
from China
YU Li-ying1, HUANG Yun-feng2, XU Wei-bin3, DENG Yun-fei4*
(1. Guangxi Key Laboratory of Medicinal Resources Conservation and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants,
Nanning 530023, China; 2. Guangxi Institute of Traditional Medical and Pharmaceutical Sciences, Nanning 530022, China; 3. Guangxi Institute
of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China; 4. Key Laboratory of Plant Resources
Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China)
Abstract: Carex trongii K. K. Nguyen (Cyperaceae) is reported as a newly recorded species from Guangxi,
China. It grows under the forest in the limestone hills at 900–1000 m. It resembles the plants in Carex sect.
Siderostictae Ohwi, but differs by its central culms and densely hispid perigynia. Further study on its position is
necessary. The description and illustration of Carex trongii K. K. Nguyen are provided.
Key words: Cyperaceae; Carex Linn.; Carex sect. Siderostictae Ohwi; Carex trongii K. K. Nguyen; China
Received: 2012–02–13　　　Accepted: 2012–03–07
Supported by a foundation from Ministry of Environmental Protection, People’s Republic of China (WZ10-2-9)
* Corresponding author. E-mail: yfdeng@scib.ac.cn
The genus Carex Linn. (Cyperaceae) is one of
most diverse genus of seed plants and the largest
genera in the family Cyperaceae with about 2000
species worldwide[1–3]. It is easily distinguished
from other genera of Cyperaceae by its perigynia
subtending achenes. Approximately 530 species have
been reported from China[2], and some new taxa of
this genus are still described[4–5].
During the course of the biodiversity survey
in Napo Xian, Guangxi in 2011, one more species,
Carex trongii K. K. Nguyen, is found from China and
illustrated and described below.
Carex trongii K. K. Nguyen, Bot. Zhurn. (Moscow
& Leningrad) 64: 856. 1979. Type: Vietnam, “prov.
Ha-nam-ninh, Cuc-phuong, Dong-con, mont. Kim-
giao”, 25 Jul., 1971, Nyuyen Chi Trong & Lam Van
Bao 704 (holotype HN). 菊芳薹草(新拟) Fig. 1, 2.
Perenial herb; rhizomes short, with long creeping
stolons. Culms central, 20–32 cm, shorter than
404　　　　　　　　　　　　　　　　　　　　 　 热带亚热带植物学报　　　　 　　　　　　　 　 第20卷
Fig. 1 Carex trongii K. K. Nguyen. A. Habit; B. Male spike and female spike; C. Female glume; D. Perigynia; E. Achene.(Drawn by LIU Yun-xiao
from HUANG Yun-feng 11073101)
第4期 405余丽莹等：中国莎草科一新记录种——菊芳薹草
leaves, slender, trigonous, smooth, covered by dark
brown bladeless sheath at base. Leaves basal, 3 or 4
clustered, petiolate; sheaths brown; petioles flatted,
brown, 8–14 cm long, ca. 2 mm wide; blades elliptic
or ovate-lanceolate, 17–20 cm×2.5–3.5 cm, glabrous,
apex acuminate, margin entire or slightly rugose, base
broadly cuneate, adaxially green, abaxially pale green,
glaucous, palmate veins 9–11 on each side of midvein.
Inflorescence of racemes with 3–5 spikes, lower
portion with 2 or 3 involucral bracts without spikes;
involucral bracts purplish, sheath-like, with a bristle-
like blade, shorter than sheath; terminal spike one
male, linear, 2–5 cm, male flowers compact, glumes
lanceolate, 3–3.5 mm, dark brown, glabrous, apex
acute, peduncle ca. 1 cm; lateral spikes 2–4 female,
cylindrical, 1.7–2.1 cm×3–4 mm, glumes quadrate,
2.8–3 mm×2.3–2.5 mm, apex triangulate-acute, base
truncate, dark brown, many-veined, peduncles 1.4–
Fig. 2 Specimen of Carex trongii K. K. Nguyen
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2 cm. Periynia longer than glume, elliptic, trigonous,
slightly angled, 5.5–5.7 mm×1.2 mm, yellowish,
many-veined, hispid, apex long beaked, orifice
with 2 small teeth. Achenes elliptic, trigonous, 3.5–
3.8 mm×1–1.2 mm, yellowish, base with a short
stiple. Stigmas 3.
Distribution and habitat: The species is
distributed in N Vietnam and SW China (Guangxi).
It is recorded in China for the first time. It grows
under the forest in the limestone hills at 900–1000 m.
The Chinese name “菊芳薹草” is named after
its type locality, Cuc Phuong National Park, which
is translated into Chinese as “菊芳国家公园”,
N. Vietnam. In recent years, after more botanical
investigation carried out, many species previously
known only from N. Vietnam have been found in
Guangxi and SE Yunnan of China, or vice versa[6–12].
Certainly, the collaboration between Chinese and
Vietnamese taxonomists will help to gain a better
understanding of the flora of China and of Vietnam,
especially that of the boundary regions.
Specimens examined: China. Guangxi: Napo
Xian, Pingmeng Zhen, Paotaishan, 950 m, 31 July
2011, Huang Yun-feng 11073101 (GXMI, IBSC).
Relationships: Carex trongii was placed in
Carex sect. Griseae Bailey by Nguyen[13–14]. However,
it differs from other species of C. sect. Griseae
Bailey by its perigynia hispid and female glumes
acute at apex. Furthermore, Carex sect. Griseae has
the perigynia glabrous and female glumes with long
rough-awned apex, and is recognized as a group to
be restricted in N America[15]. Morphologically, this
species resembles the plants of C. sect. Siderostichae
Ohwi, but it is easily distinguished from the latter by
its central culms and hispid perigynia. Currently, it
seems that this species is not probable to be placed in
any known section and might be represented a new
unpublished section. Further study on its position is
necessary.
Acknowledgements　　We are gratefull to Mrs. LIU Yun-xiao
(IBSC) for her kindly help to prepare the line drawing.