全 文 ：　 喜马拉雅野青茅的合格发表 　
陈 文 俐
(中国科学院植物研究所　北京 100093)
Validation of Deyeuxia himalaica L.Liou
CHEN Wen-Li
(Institute of Botany , the Chinese Academy of Sciences , Beijing 100093)
Abstract　By giving a full Latin description and designating the holotype , Deyeuxia himalaica is
validated.
Key words　Deyeuxia himalaica;Validation
In the course of revising the Chinese Deyeuxia , I found that D.himalaica L.Liou published
in “Flora Xizangica” (Lu &Liou , 1987)and “Flora Reipublicae Popularis Sinicae ” (Lu , 1987)
was accompanied only by a Chinese description , but not a Latin one , and no type was designated.
According to the Art.36.1 and 37.1 of the International Code of Botanical Nomenclature (Saint
Louis)(Greuter et al., 2000), D.himalaica is an invalid name.I have re-examined the speci-
mens referred to this species by Liou , and found that they represent indeed a good species.In order
to validate this name , a full Latin description is given , and its holotype is designated.
Deyeuxia himalaica　L.Liou , sp.nov.　Fig.1
S.L.Lu et L.Liou in C.Y.WU(ed.):Fl.Xizang.5:215.1987 , sine descr.lat.;S.
L.Lu in Fl.Reip.Pop.Sin.9(3):197.1987 , sine descr.lat.
Affinis D .scabrescenti(Griseb.)Munro , sed spiculis vulgo 2-, raro 1-floris , nervis laterali-
bus et intermediis lemmatis primi in 4 dentes 0.2 ～ 0.8 mm longos prolongatis , arista e 1 5 ～ 2 5
parte superiore lemmatis nascente , 8 ～ 10mm longa , reflexa , rhachilla prolongata 1.0 mm longa pi-
lis 0.8 ～ 1.0 mm longis tecta differt.
Rhizoma elongatum.Culmi 20 ～ 60 cm alti , basi 2 ～ 3 mm crassi , (2 ～ )3 ～ 4-nodi.Foliorum
vaginae scabrellae internodiis breviores;ligulae 2 ～ 4 mm longae;laminae 9 ～ 20 cm longae , 2 ～ 5
mm latae , apice longe acuminatae , scabrellae.Panicula 6 ～ 17 cm longa , 3 ～ 6 cm lata , ramis al-
iquot fasciculatis 3.5 ～ 8 cm longis scabrellis ascendentibus;spiculae vulgo 2-, raro 1-florae , 5 ～
6.5mm longae , purpureae;glumae duae subaequales , scabrellae , acuminatae;lemma primum 4 ～
5 mm longum , scabrellum , nervis lateralibus et intermediis in 4 dentes 0.2 ～ 0.8 mm longos pro-
longatis , arista e 1 5 ～ 2 5 parte superiore lemmatis nascente , 8 ～ 10mm longa , scabrella , reflexa ,
callo pilis 1 ～ 1.5 mm longis tecto;palea carinis duabus in 2 dentes prolongatis instructa , scabrel-
la;internodia rhachillarum 0.5 ～ 1.5 mm longa , pilis 1.0 ～ 1.5 mm longis;flosculus secundus ei
primo similis , sed paulo brevior , 3.5 ～ 4.5 mm longus;rhachilla prolongata 1.0 mm longa , pilis
0.8 ～ 1.0 mm longis;antherae 2 ～ 2.5 mm longae.Caryopsis ignota.
Rhizomeelongated.Culms20 ～ 60cm tall , 2 ～ 3mmthickatbase , (2 ～ )3 ～ 4-noded.Leaf
　2001-06-28收稿。
中国科学院资助项目“青藏高原及其邻近地区植物区系及分布格局研究(KSCX2-1-06B)”
植 物 分 类 学 报　39(5):447～ 449(2001)
Acta Phytotaxonomica Sinica
Fig.1　Deyeuxia himalaica L.Liou(from Qinghai-Xizang Exped.1033)　1.Habit;2.Spikelet;3.Florets with glumes
removed;4.The lower floret and internodes of rhachi lla.(Drawn by Cai Shu-qin).
448　 植　物　分　类　学　报 39 卷
sheaths shorter than internodes , slightly scabrid;ligules 2 ～ 4 mm long;blades 9 ～ 20 cm ×2 ～ 5
mm , apex long-acuminate , slightly scabrid.Panicle 6 ～ 17 cm ×3 ～ 6 cm , branches fascicular ,
3.5 ～ 8 cm long , slightly scabrid , ascending;spikelets usually 2-, occasionally 1-flowered , 5 ～ 6.
5 mm long , purple;glumes subequal , slightly scabrid , acuminate;the lower lemma 4 ～ 5 mm
long , slightly scabrid , with the two lateral and two intermediate nerves prolonged into 4 teeth 0.2 ～
0.8 mm long , the dorsal awn inserted from 1 5 ～ 2 5 below the apex , 8 ～ 10 mm long , slightly sca-
brid , reflexed , hairs of callous 1 ～ 1.5 mm long;palea slightly scabrid , with the 2 keeled nerves
prolonged into 2 teeth;internodes of rhachilla 0.5 ～ 1.5 mm long , bearing hairs 1.0 ～ 1.5 mm
long;the upper flower similar to the lower one , but slightly shorter , 3.5 ～ 4.5 mm long;rhachilla
1.0 mm long , bearing hairs 0.8 ～ 1.0 mm long;anthers 2 ～ 2.5 mm long.Caryopsis unknown.
China.Xizang:Müdog , South Doshong La , alt.3900 ～ 4000 m , 1974-09-14 , in alpine
meadow , Qinghai-Xizang Exped.1033(holotype , here designated , PE).
Representative specimens:
China.Xizang:Bomi , Plateau Pl.Exped., Department of Ecology , Institute of Botany ,
CAS 14932(PE), 14930 (PE), S.Z .Cheng 0146(PE), S.Z.Cheng and B.S.Li 14824
(PE), 6674(PE);Müdog , S.Z .Cheng 00348(PE), S.Z.Cheng and B.S.Li 01126(PE);
Nyalam , C.C.Ni 2097(PE).
Distribution and habitats:China.S and SE Xizang.In alpine meadow or under alpine
shrubs , alt.3400 ～ 4000 m.
This species is closely related to D.scabrescens , but differs by having the spikelets usually
2-, occasionally 1-flowered , the two lateral and two intermediate nerves of the lower lemma pro-
longed into 4 teeth 0.2 ～ 0.8 mm long , the dorsal awn inserted from 1 5 ～ 2 5 below the apex , 8 ～
10 mm long , scabrid , reflexed , and the rhachilla 1 mm long , bearing hairs 0.8 ～ 1.0 mm long.
Acknowledgements　I am very grateful to Profs.Yang Qin-Er , Tang Yan-Cheng , Dr.Zhang Shu-Ren , Institute of
Botany , the Chinese Academy of Sciences , for their critical reading of the manuscript , andMs.Cai Shu-Qin for her
excellent illustration.This paper is dedicated to my advisor , the late Professor Liou Liang , a famous agrostologist of
China.
References
Lu S L(卢生莲), Liou L(刘亮), 1987.Deyeuxia Clarion.In:WuC Y ed.FLora Xizangica(西藏植物志).Bei-
jing:Science Press.5:213～ 228
Lu S L(卢生莲), 1987.Deyeuxia Clarion.In:Flora Reipublicae Popularis Sinicae(中国植物志).Beijing:Sci-
ence Press.9(3):188～ 223
Greuter W , McNeill J , Barrie F R et al., 2000.International Code of Botanical Nomenclature(Saint Louis Code).
Königstein , Germany:Koeltz Scientific Books.63～ 64
摘要　补充了喜马拉雅野青茅 Deyeuxia himalaica 的拉丁描述和特征简介 , 指定了主模式 , 使其成为合法
名称。
关键词　喜马拉雅野青茅;合格发表
(责任编辑 白羽红)　
5 期 陈文俐:喜马拉雅野青茅的合格发表 449