全 文 ：武汉植物学研究 2002, 20( 1) : 12～13
Journal of Wuhan Botanical Research
根茎兜兰——缅甸兰科一新种

陈心启1　 　刘仲健2
( 1.中国科学院植物研究所系统与进化植物开放实验室, 北京　100093; 2.深圳市梧桐山苗圃总场, 深圳　518114)
摘　要: 基于采自缅甸北部的栽培植物,对兰科新种根茎兜兰(Paphiop edilum rhiz omatosum)作了描述和绘图。此
新种具长 8～10 cm、粗 8～12 mm 的根状茎与较坚硬的根;与我们所知的种类有极明显的不同。它在花的色泽与形
态方面与小叶兜兰(P . barbigerum)相近, 区别点还在于叶要大得多,宽达 2. 5～3. 5 cm, 退化雄蕊先端近截形并有
短尖头。
关键词: 根茎兜兰; 新种; 缅甸
中图分类号: Q949. 71+ 8. 43　　　　　文献标识码: A　　　　　文章编号: 1000-470X ( 2002) 01-0012-02
Paphiop edilum rhizomatosum,A New Species of Orchidaceae from Myanmar
CHEN Sing-Chi
1
, 　LIU Zhong-Jian2
( 1. Laboratory of Syst ematic and E volutionary Botany , Insti tut e of B otany , T he Chinese A cademy of Sc iences, Beijin g　100093, C hina;
2. Shenz hen City W utongshan Nur se ries, Sh enzh en　518114, Ch ina)
Abstract: A new species o f Orchidaceae, Paphiop edilum rhiz omatosum S. C. Chen et Z. J. L iu
( Subgen. Paphiop edilum, Sect . Paphiop edilum) , is described and illust rated based on a cult ivated
plant collected f rom no rthern M yanmar. T his new species is quite dist inct f rom the species known
to us by having a rhizome up to 8～10 cm long and 0. 8～1. 2 cm thick, and rather st if f ro ots. It
is sim ilar in flor al colour and morpholog y to P . barbigerum Tang et W ang , f rom which it differ s
also by having much larger leaves up to 2. 5～3. 5 cm wide and subtruncate-and mucronate-t ipped
staminode.
Key words : Paphiop edi lum rhiz omatosum; New species; Myanmar
　 　 During a t rip of the second author to
Southw estern Yunnan of China in last summer,
some plants of Pap hiop edilum cult iv ated in a
nurser y at t racted his much at tent ion. The plants
have a nearly st raight rhizome up to 8～10 cm long
and 0. 8～1. 2 cm thick. T her e are three o r four
shoo ts at it s summit , each w ith 3～5 leaves. The
new shoot ari-ses f rom the ax il of the low est leaf of
the older shoot . When the new shoot becomes
mature, the subtending leaf is w ithered and fall.
The ow ner of the nur sery said that these plants
w er e collected fr om northern Myanmar . Altogether
six individuals were brought back and cultiv ated in
our nursery . One o f them flow ered in last October.
It s flo ral co lour and morpho logy are sim ilar to
those o f Pap h. bar biger um T ang et Wang , but the
habit is quite different . T his is no doubt a
r emar kable new species.
Paphiopedilum rhizomatosum S. C. Chen &
Z. J. Liu, sp. nov. ( F ig. 1)
TYPE: Norther n Myanmar , w ithout precise
locality, cult . plant , 20 Oct. 2001, Z. J. L iu 21024
( holo type, SZWN) ( SZWN = Her barium, Shenzhen

收稿日期: 2002-01-23。
　作者简介:陈心启( 1931- ) ,研究员,长期从事兰科研究。
A. P lant ; B. Do r sal sepal, front view ; C. Petal, fr ont v iew ;
D . L ip; E. St aminode, front v iew . D raw n fr om Z. J. L iu
21024 ( holot ype)
Fig. 1　Paphiopedilum rhizomatosum
S.C.Chen &Z. J. Liu
City Wutong shan Nurseries, China) .
Diagnosis: Species nova insignis, fo rma et colo-
re f loris Paphiop edilo bar biger o subsimilis, a quo
imprimis dif fert rhizomate ad 8～ 10 cm longo,
0. 8～1. 2 cm in diametro, radicibus comparate
rigidis, foliis multo majoribus, staminodio
subtr uncato et mucronato ad apicem.
Description: T er rest rial plant , usually
compr ising three or four shoots, or tuf t s of leaves,
at the summit of the rhizome. Rhizome 8～10 cm
long , 0. 8～1. 2 cm thick, nearly st raight , w hit ish or
sometimes tinged w ith brow nish, w ith nodes 5～
20 mm apart ; r oots st if f , densely hairy , one or tw o
　　　
g row ing out fr om each node. Leaves 3～5, narrow ly
oblong , 15～ 35 cm × 2. 5 ～ 3. 5 cm, obtuse to
acum inate, bifid at apex , deep green above, pale
g reen and purple-based beneath, narrow ed into a
conduplicate petiole. Scape suberect , 25 cm long ,
densely purple-brow n-pubescent , terminating in a
sing le flow er ; bract greenish, o vate, o vary-clas-
ping , 3. 7～4. 2 cm×2～2. 2 cm , nearly g labrous;
pedicel and ovary ca 6 cm long, green, densely
purple-brow n-hairy . Flow er 8～9 cm across; dor sal
sepal broadly elliptic, 4. 9～5. 5 cm×3. 5～3. 7 cm ,
brow nish-gr een and st riped w ith brow n in low er
part , the marg ins and upper part white, emarginate
at apex, recur ved along lower marg ins, purplish-
pilose at v ent ral base, densely puberulous do rsally ;
synsepal o vate-oblong , 4. 5 ～ 4. 8 cm × 2. 2 ～
2. 4 cm , yel low ish-greenish, purplish-puberulous
dorsally; petals narr ow ly spathulate-oblong, 4. 5～
5. 5 cm×1. 5 cm , yel low ish-greenish w ith purple-
brow n midrib and brow nish veins, slight ly undulate
and cil iate at the marg ins, purple-villose at vent ral
base, the dorsal midrib purplish-brown-
puberulous; lip obovoid-obconical, 4～4. 5 cm long
( including a claw ca 1. 7 cm long) , ca 2 cm w ide in
upper part , greenish-brow nish w ith darker veins,
hairy tow ards the inner base; staminode subovate,
ca 1. 4 cm×1. 2 cm, subtr uncate and mucronate at
apex , auriculate at base, w ith a raised boss near the
center o f it s upper surface.
Phenology: Flowering from October to
November in nurser y.
Distribution: No rthern Myanmar , w ithout
precise locality .
Notes : T his new species is quite dist inct from
the species known to us by the thick rhizome and
r ather stif f roots. The floral morpho logy indicates
it s af f inity w ith Paphiop edi lum bar biger um T ang et
W ang , from which it dif fers also by having much
lar ger leaves and stam inode subtr uncate and
mucronate at apex .
Acknowledgment: We are g r ateful to M iss L . J. Chen for her
skillfully prepar ing t he line draw ing .
13　第 1 期　　　　　　　　　　　　　陈心启等 :根茎兜兰——缅甸兰科一新种(英)