全 文 ：热带亚热带植物学报　2015， 23(2)： 144 ~ 146
Journal of Tropical and Subtropical Botany
Received: 2014–11–24　　　　Accepted: 2015–01–09
This work was supported by the National Natural Science Foundation of China (31370231).
LI Yu-ling (1987~), PHD student. Mainly study about orchid classification. E-mail: liyuling198811@163.com
* Corresponding author. E-mail: xinfw@scib.ac.cn
中国大陆鸢尾兰属(兰科)二新记录种
李玉玲1,2, 叶德平3, 易绮斐1, 邢福武1*
(1. 中国科学院华南植物园， 广州 510650； 2. 中国科学院大学， 北京 100049； 3. 云南省普洱市森林资源管理站， 云南 普洱 665000)
摘要： 首次报道了中国大陆兰科(Orchidaceae)鸢尾兰属(Oberonia)二新记录种：密花鸢尾兰[O. seidenfadenii (H. J. Su) Ormerod]
和齿唇鸢尾兰(O. segawae T. C. Hsu & S. W. Chung)，并提供了它们的形态特征描述。
关键词： 鸢尾兰属； 兰科； 新记录； 中国大陆
doi: 10.11926/j.issn.1005–3395.2015.02.004
Two Newly Recorded Species of Oberonia (Orchidaceae) from Mainland
China
LI Yu-ling1,2, YE De-ping3, YI Qi-fei1, XING Fu-wu1*
(1. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; 2. University of Chinese Academy of Sciences, Beijing
100049, China ; 3. Department of Forest Resources Ministry of Pu’er in Yunnan, Pu’er 665000, China)
Abstract: Oberonia seidenfadenii (H. J. Su) Ormerod and O. segawae T. C. Hsu & S. W. Chung as two new
records of Orchidaceae from mainland China are reported for the first time. The voucher specimens are deposited
in the herbarium of the South China Botanical Garden, Chinese Academy of Sciences, Guangzhou (IBSC).
Key words: Oberonia; Orchidaceae; New record; Mainland China
The genus Oberonia Lindl. consists of about 150–
200 species, concentrated in tropical Asia and the Malay
Archipelago, extending to tropical Africa, Madagasca,
the Mascarene Islands, the Philippines, New Guinea,
the northeast Australia and the southwest Pacific
Islands across to Tahiti[1–2]. This genus is represented
in China by about 39 species, among which 11 are
endemic[1,3–4]. Oberonia differs from its allies by its
fleshy equitant distichous leaves, slender terminal
inflorescence covered with extremely small flowers
no more than about 6 mm long.
During our fieldwork in Yunnan, Guangdong and
Guangxi Provinces, two species of Oberonia Lindl.
(Orchidaceae), which have never been reported from
mainland China before, were found. After further
studies, they were identified as O. seidenfadenii (H.
J. Su) Ormerod and O. segawae T. C. Hsu & S. W.
Chung[5–7], new to mainland China.
Oberonia seidenfadenii (H. J. Su) Ormerod,
Taiwania 47: 242. 2002; Hippeophyllum seidenfadenii
H. J. Su, J. Exp. Forest Natl. Taiwan Univ. 13(3): 203–
209. 1999. Holotype: Taiwan, Kaohsiung County,
Liukuei District: along the Douna logging road, ca.
1400 m in elevation, Nov. 11, 1986. Su 7525. (HAST,
photo!).　　密花鸢尾兰 Fig. 1: A–D
Herbs, epiphytic, ca. 2.5–3.5 cm tall. Rhizome
creeping and branching, covered by some scale-like

146 第23卷热带亚热带植物学报
slightly tinged with purple, minute and verticillate.
Floral bracts ovate, 1.1–1.4 mm long, ca. 0.9 mm
broad, obscurely erose. Dorsal sepal ovate, 0.6–0.7 mm
long, 0.5–0.6 mm broad; lateral sepals sub-similar,
narrowly ovate, ca. 0.7 mm long, 0.4 mm broad,
entire, concave; petals linear-oblanceolate, ca. 0.6 mm
long, 0.2 mm broad, apex obtuse, entire; lip 3-lobed, ca.
1 mm long, 1 mm broad; the side-lobes ovate-triangular,
margin inconspicuously erose-denticulate; mid-lobe
bilobed at apex, the lobelets triangular, ca. 0.2 mm long,
acute; column ca. 0.1 mm long; anther cap broadly ovate,
2-celled; pollinia 4, ovate; viscidium absent. Fl. and
Fr. Sep.–Nov.
Notes: Oberonia seidenfadenii is similar with O.
pumila, but can be easily distinguished in having
inflorescence with numerous densely flowers enlarged
at the middle of the rachis.
Distribution and Habitat: China. Guangdong:
Heyuan, Longchuan County, epiphytic on rocks, 400–
520 m, Li Y. L. 526 (IBSC). China. Guangxi: Baise,
Lingyun County, Lingzhanxiang, Daguigou, epiphytic
on trunks, 600 m, South China Expedition Team 1660
(IBSC); Li Y. L. 435 (IBSC); Hechi, Tian’e County,
epiphytic on trunks, Wang B. M. 14111711(IBSC).
Newly recorded to mainland China.
Oberonia segawae T. C. Hsu & S. W. Chung,
Taiwania 53(2): 165–169. 2008. Type: Taiwan, Pingtung
County, Chaozhoujun, Aug. 1937, K. Segawa s. n.
(TAIF 117872, photo!). 　　齿唇鸢尾兰 Fig. 2: A–B
Epiphytic herbs. Plant usually clustered and
pendulous. Stems short, no more than 3 cm long. Leaves
5–7, distichous-equitant, narrowly sword-shaped,
slightly falcate, variable in length, the largest ones
6–13 cm long, 0.3–0.5 cm broad, base articulate.
Inflorescence longer than leaves, 5–9 cm long, with
many small flowers. Flowers greenish and verticillate.
Flora bracts ovate-lanceolate, ca. 1.1 mm long, 0.6 mm
broad, margin erose. Pedicel and ovary ca. 1 mm
long. Sepals subequal, entire, ovate-oblong, ca. 0.5 mm
long, 0.4–0.5 mm broad. Petals spreading, entire,
linear-oblong, ca. 0.6 mm long, ca. 0.2 mm broad.
Lip ovate-oblong, 0.8–1 mm long, 0.7–0.8 mm broad,
almost nearly unlobed, apex retuse, margin irregularly
incised; the incised lobulets progressively deeper
towards the apex; column short, globular, ca. 0.2 mm
long; anther cap ovate, 2 celled; pollinia 4. Fl. and Fr.
Aug.–Oct.
Notes: Oberonia segawae is similar with O.
gammiei, but can be easily distinguished by its
narrowly falcate leaves and inconspicuously lobed lip
with irregularly incised margin. O. segawae found in
Yunnan Province is slightly different from the species
found in Taiwan (Sepals ovate-oblong vs. sepals ovate-
triangular), but other characteristics, especially the shape
of lip, is conspecific with the species in Taiwan. Hence,
this species found in Yunnan should be identified as O.
segawae.
Distribution and habitat: China. Yunnan: Pu’er,
epiphytic on trunks, 1254 m, Li Y. L. 14081803 (IBSC).
Newly recorded to mainland China.
Acknowledgements　　The authors thank QIU Jun-jie and
WANG Bing-mou for their helps in investigation in the field.
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