全 文 ：The family Ericaceae, consisting of about 125
genera and 4000 species, is widely distributed in
temperate and subarctic regions, also at high elevations
in tropical regions[1]. The genus Agapetes D. Don ex G.
Don (Ericaceae, Vaccinioideae) comprises ca. 100 species
distributed from the Himalayan region to southwest
China and mainland southeastern Asia[1].
In Vietnam, the genus Agapetes was taxonomically
studied by several authors[2–8] and there are 7 species
recorded previously[5]. In the course of examining the
specimens of Agapetes in HN, one specimen (HAL9889)
collected from Ta Phin Village, Sin Ho District, Lai
Chau Province in North of Vietnam in 2006 draw our
attention. It is very different from all the known species
from Vietnam by having scattered leaves, petiole 3 –
5 mm, glabrous racemose inflorescence 3 – 8 cm long,
peduncle 0.6 – 1.3 cm long, pedicel 0.5 – 1.5 cm long,
somewhat expanded apically, subglobose calyx tube
for ca. 2 mm long (Figs. 1, 2). After comparing it with
the species from neighboring countries, we confirmed
that it is Agapetes lobbii C. B. Clarke, a new record
for the flora of Vietnam.
Recieved： 2013–10–10　　　　Accepted： 2013–11–27
* Corresponding author. E-mail: nhxia@scbg.ac.cn
热带亚热带植物学报　2014， 22(2)： 143 ~ 146
Journal of Tropical and Subtropical Botany
越南杜鹃花科新记录——深裂树萝卜
阮氏青香1, 阮进侠2, 陈氏方英3, 武进正1,4,5, 童毅华4,5, 夏念和4*
(1. 越南科学技术院，生态与生物资源研究所， 河内； 2. 植物保存中心， 河内； 3. 越南国家自然博物馆， 河内； 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； 5. 中国科学院大学， 北京 100049)
摘要： 报道了越南杜鹃花科(Ericaceae) 1 新记录种——深裂树萝卜(Agapetes lobbii C. B. Clarke)。该种产自越南北部莱州省(Lai
Chau)的 Sin Ho 地区，凭证标本保存在越南科学技术院生态和生物资源研究所标本馆(HN)。
关键词： 树萝卜属； Agapetes lobbii； 杜鹃花科； 新记录； 越南
doi: 10.3969/j.issn.1005–3395.2014.02.006
Agapetes lobbii C. B. Clarke (Ericaceae), A Newly Recorded Species
from Vietnam
NGUYEN Thi Thanh Huong1, NGUYEN Tien Hiep2, TRAN Thi Phuong Anh3, VU Tien Chinh1,4,5,
TONG Yi-hua4,5, XIA Nian-he4*
(1. Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam; 2. Center
for Plant Conservation, Hanoi, Vietnam; 3. Vietnam National Museum of Nature, 18 Hoang Quoc Viet, Hanoi, Vietnam; 4. Key Laboratory of Plant
Resources Conservation and Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; 5. University of
Chinese Academy of Sciences, Beijing 100049, China)
Abstract: Agapetes lobbii C. B. Clarke (Ericaceae), a species previously known only from India, Myanmar,
Thailand and China, is newly recorded from Vietnam. It was found in Lai Chau Province, North Vietnam and the
vouchers are kept in the herbarium of Institute of Ecology and Biological Resources, Hanoi, Vietnam (HN).
Key words: Agapetes; Agapetes lobbii C. B. Clarke; Ericaceae; New record; Vietnam
144 第22卷热带亚热带植物学报
Agapetes lobbii C. B. Clarke in Hook. f., Fl. Brit.
India. 3: 448. 1881; Airy Shaw, Bull. Misc. Inform.
Kew 1935: 37. 1935; Sleumer, Dansk Bot. Ark. 23(3):
303. 1966; R. Z. Fang & P. F. Stevens in Z. Y. Wu & P.
H. Raven, Fl. China. 14: 506. 2005. Type: Myanmar.
Mon State: Moulmein, Thoung gyne, alt. 1524 m,
1857, T. Lobb s. n. (holotype: K!).
Agapetes corallina Cowan, Not. Roy. Bot. Gard.
Edinb. 18: 36. 1933. Type: Myanmar. Kachin State:
Myitkyina district, Htawgaw Hill, alt. 1402 m, 30
November 1930, Sukoe 34 (holotype: E!; isotype: K!).
Agapetes racemosa Watt ex Kanjilal, Fl. Assam
3: 139. 1939. Type: India. Manipur State: Naga Hills,
hill behind Kohima, alt. 1800 m, 28 February 1882,
Watt 6180 (holotype: E?; isotype: K!)
Agapetes stenantha Rehd., J. Arnold Arbor. 14(4):
350. 1933. Type: Myanmar. Kachin State: between
Sadon and the Yunnan Chinese border at Changtifang
and Kambaiti, alt. 2316 m, November 1922, J. F. Rock
7514 (holotype: A? isotype: US!).
Epiphytic or lithophytic shrub, 1 – 2 m tall. Twigs
terete, 1 – 2.3 mm in diam. Leaves scattered; petiole
3 – 5 mm; leaf blade ovate-lanceolate or lanceolate,
5 – 10 cm × 1.5 – 3 cm, leathery, glabrous, secondary
veins 5 – 7 pairs, barely evident, base cuneate or broadly
cuneate, margin entire, with 1 basal gland each side,
apex caudate-acuminate. Inflorescences racemose,
3 – 7.5 cm, many-flowered; peduncle 0.9 – 1.2 cm,
glabrous. Pedicel 0.5 – 1.5 cm, somewhat expanded
apically, glabrous. Calyx glabrous, tube subglobose,
ca. 1.5 – 2 mm; limb 5-divided to base; lobes triangular-
lanceolate, 2.8 – 4 mm. Corolla crimson, narrowly
Fig. 1 Agapetes lobbii C. B. Clarke. 1: Flowering branch; 2: Inflorescence. [Drawn by Kim Chi from HAL9889 (HN)]
第2期 145
campanulate, 2 – 3 cm; 5-lobed, lobes erect or recurved,
lorate, ca. 1.2 cm, glabrous. Stamens 10; filaments
3 – 5 mm, slightly hairy to glabrous, papillate; anthers
ca. 2.3 cm, thecae papillate, with minute spurs or
not; tubules ca. (1 –) 2× as long as thecae. Ovary
subglobose, 1.5 – 2 mm long, glabrous; style slender,
ca. as long as the corolla, glabrous; stigma truncate.
Berry unknown. Fl.: November – June of next year.
Distribution: China (Yunnan), India, Myanmar,
Thailand and Vietnam.
Ecology and habitat: This species is epiphytic
on trees or lithophytic on shady cliffs on remnants of
broad-leaved evergreen closed primary forest on
steep mountain slopes composed with solid crystalline
highly eroded limestone at alt. 900 – 2300 m.
Additional specimens examined: China. Yunnan:
Jingdong, M. K. Li 1732 (IBSC, KUN); Jinghong, Y.
H. Li 3719 (HITBC, KUN), H. Wang 1893 (HITBC),
1898 (HITBC), 1903 (HITBC), 1905 (HITBC), 1906
(HITBC), 1907 (HITBC); Jinggu, Z. Z. Tao 210
(HITBC, IBSC); Lüvchun, S. K. Wu et al. 234 (KUN),
652 (KUN); Menghai, C. M. He 110501MH (IBSC);
Mengla, Exped. 34397 (HITBC). Vietnam. Lai Chau:
Sinho, T. H. Nguyen, L. V. Averianov & P. K. Loc
HAL9889 (HN).
Fig. 2 Agapetes lobbii C. B. Clarke. A: Habit; B: Inflorescence; C: Flower. (Photographed by P. K. Loc)
阮氏青香等：越南杜鹃花科新记录——深裂树萝卜
146 第22卷热带亚热带植物学报
Acknowledgment　　We are thankful to the Vietnamese and
Chinese Governments, and South China Botanical Garden
(SCBG), Chinese Academy of Sciences (CAS) for providing
research facilities and financial support. We would like to thank
the curators of the herbaria (HN, HITBC, IBSC, KUN, VNM,
VQBM) for their help. The authors also express their thanks to
Mrs. Kim Chi, IEBR, Vietnam for making illustration.
References
[1]　 Fang M Y, Fang R Z, He M Y, et al. Ericaceae [M]// Wu Z Y,
Raven P H. Flora of China, Vol. 14. Beijing: Science Press & St.
Louis: Missouri Botanical Garden Press, 2005: 242–517.
[2]　 Nguyen T H, Pham H H. Ericaceae [M]// Averianov L V. Vascular
Plants Synopsis of Vietnamese Flora, Vol. 2. Leningrad: “Nauka”
Leningrad branch, 1996: 84–96.
[3]　 Pham H H. An Illustrated Flora of Vietnam, Vol. 1 [M]. Ho
Chi Minh City: Young Publishing House, 1999: 62–624.(in
Vietnamese)
[4]　 Nguyen T H. Ericaceae [M]// Nguyen T B. Checklist of Plant
Species of Vietnam, Vol. 2. Hanoi: Agricultural Press, 2003:
446–449.
[5]　 Nguyen T T H, Nguyen T H. Agapetes malipoensis S. H. Huang
(Ericaceae Juss.): A new species for the flora of Vietnam [J]. J
Biol, 2010, 32(1): 33–35.(in Vietnamese)
[6]　 Dop P. Ericaceae [M]// Lecomte H, Humbert H, Gagnepain F.
Flore Générale de L’Indo-chine, Vol. 3 (6). Paris: Masson, 1930:
698–746.(in French)
[7]　 Sleumer H O. Studies in the Flora of Thailand: 38. Ericaceae [J].
Dransk Botanisk Arkiv, 1966, 23(3): 302–305.
[8]　 Airy Shaw H K. Studies in the Ericales: V. Further notes on
Agapetes [J]. Kew Bull, 1948, 3(1): 77–104.
[9]　 Airy Shaw H K. Studies in the Ericales: XI. Further new species
and notes on the Agapetes of Continental Asia [J]. Kew Bull,
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Key to the species of Agapetes in Vietnam
1A. Inflorescences racemose
　2A. Inflorescences with glandular hairs; bracts large, 6 – 12 mm long ………………………………………………… 6. A. bracteata
　2B. Inflorescences glabrous; bracts small, 0.5 – 2 mm long ……………………………………………………………… 5. A. lobbii
1B. Flower solitary or in pair or fasciculate
　　3A. Leaf blade longer than 4 cm
　　　4A. Twigs and calyx densely spreading glandular setose; leaf blade elliptic or oblong-elliptic
　　　　5A. Leaf blade 4 – 6 cm long; corolla 2.5 cm long …………………………………………………………… 1. A. cauliflora
　　　　5B. Leaf blade 6.5 – 11 cm long; corolla 2 cm long ………………………………………………………… 2. A. malipoensis
　　　4B. Twigs glabrous, calyx velutinous; leaf blade lanceolate ………………………………………………………… 4. A. velutina
　　3B. Leaf blade shorter than 4 cm
　　　6A. Leaf margin entire; bracts small, 0.5 mm long
　　　　7A. Twigs setose; corolla red …………………………………………………………………………………… 7. A. hosseana
　　　　7B. Twigs pubescent; corolla white ……………………………………………………………………………… 8. A. mannii
　　　6B. Leaf margin crenulate above middle; bracts large, 1.3 – 1.5 cm long …………………………………… 3. A. rubrobracteata