STIPEAE PLATENSES 151 



tei-etibus v. lenissime compressulis gracillimis (100-400 mm long. 

 = 0,3-0,5 mm diam.) glabris laevibus sed minutissime scaberulis 

 intus concoloribus 1-nervosis (apertis 0,75-1 mm lat.) vix pulve- 

 rulentis, sursuni sensim attenuato-acuminatis pungentibusque, va- 

 ginis arcte adpressis glabris laevibus v. vix. obsolete striatulis non 

 scabris, ore abrupte rotundatis alque cum ligulis e hyalino scario- 

 sulis plus mmusve evolutis (0-5 mm long.) obtusis inaequilateralibus 

 glaberrimis integris continuis. 



Inflorescentia (100-250 mm long.) primo erecta angusta subcon- 

 tracta, vagina folii supremi non v. vix ampliata plus minusve vesti- 

 ta, dein patentissima laxissima longe exerta, rachi tenui subangulo- 

 sa et scaberula, ramis alternis remotis saepius geminatis gracillimis 

 angulosis scabridis ad v. supra medium bis v. ter trichotomis (10-100 

 mm long.) pedicellis elongatis (1-8 mm long.) scabridis vix apice 

 ipso breviter leniterque incrassatis. 



Spiculae paucae in quoque ramulo, primo adpressae dein diva- 

 ricatissimae, patulae v. nutantes, glumis carinatulis glabris (in ca- 

 rina scabris) subnilentibus, flosculo 3-4-pIove longioribus, 3-ner- 

 vibus, obscure purpureis (in senectute saepius decoloratis), ovato- 

 lanceolatis sursum longe acuteque hyalino-attenuaiis, infera (6-7 

 mm long. = l,25 mm lat.) superam (5-6,5 mm Iong. = l,15 mm 

 lat.) parum excedente; flosculis inaequilateraliter obovatis dorso 

 valde gibbis (cum anthopodio et arista 20-32 mm Iong.= cum antho- 

 podio sine arista 1,75-2 mni long. = 0,80-1 mm diam. antero- 

 postico) e latere leniter compressis (0,6-0,75 mm crass.\ glumella 

 infera rigida coriacella primo pallida v. flavescente, dein plus mi- 

 nusve infuscata, glabra, in juventute sublaevi, per aetatem minute 

 ruguloso-papillosa; supera pusilla ovata (0,50 mm long.) rigidula 

 obtusula enervi; anthopodio subconoideo acuto pusillo (0,15-0,25 

 mm long.), villis albis, tertium v. dimidium flosculi attingentibus, 

 densiusculis vestito. 



