内蒙古葱属一新种

A New Speceis of Allium from Nei Mongol

本文发现葱属一新种——阿拉善葱

Species affinis Allium leucocephalo Turez.,sed bulborum epidermidibus externis rimosis linearibus vel fi-brosis,nec retiformibus nec subretiformibus;scapo basi vaginatis;foliis longioribus vel fere aequilongis quamscapis;pedicellis basi abracteolatis;filamentis in quoque latere 1 dentibus brevi-obtusis differt.Bulbus unicus vel 2～3 fasciculatus,teres,10～20cm longus,8～20mm crassus,epidermidibus externisflavi-fuscis vel fuscis vel brunneis,rimosis linearibus vel fibrosis.Folia semiteres,vacua,superne canalicula-ta,longiora vel fere aequilonga quam scapi,2～4mm lata.Scapus teres,15～25cm altus,basi vaginatis;in-to , longiora vel fere aequildnga quam scapi,2一4mm lata. Scapus teres,15---25cm altus, basi vaginatis; in-volucrum bipattitum, anguste longirostro, ultra umtrella, persistens; umbella sphaerica vel hemisphaerica,floribUS spissis vel laxis;pedicelli subaequilongi,perianthiis 1. 5一2 plo longiores,basi abracteolatis;alabastrarubella;flores albi vel flavidi,perianthia oblonga veI ovati-oblonga,4~6mm Tonga,externa paulo brevia,dorso r ubella;filamenta aequilonga,perianthii.s 1. 5^}2 plo longiotes,basi coadunata et adnatis perianthiis,externa subulatia,interna basi dilatata,in quoque latere I dente brevi-obtuso;ovarium subglobosum >basi nec-tariffs cavil concavis;stylus protrusus.F1V hlei Mongol:Alashanmeng , Helanshan , Halawugou,in fissuris rupestribus,alt. 2300m,5. IX. 1990,Zhao Yizhi 26(Typus,in HIMC),28,19;ib,Halawubeigou,Qingsuiwan,in elivis lapideis,all. 2200m,29.VIII. 1980,Zhao Yizhi et al. 2359;ib. ,Beisi,in clivis aridis,alt. 2300m,30. VIII. 1980,Zhao Yizhi et al.2441; ib. ,Zhaochigou,in clivis lapideis,alt. 1800m., 9.1980,Zhao Yizhi et al. 2558;ib. ,Zhenmuguan,in fissuris rupestritsus,alt. 2100m, 6. IX. 1980, Zhao Yizhi et al. 1209;ib.,Halawubeigou,in fissuris ru-pestribus,alt. 2300m,5.VI. 1980,Zhao Yizhi et al. 1056 et 2046;ib. ,Halawugou,12.1X. 1980,Wen Du-su 78;ib.,Zhufeng, in clivis apricis,alt. 3050m, 25. VII. 1963,Ma Yu-chuan et al. 155;Longshoushan,28. V11. 1982,1.ei Xi-ting et al. 315.