465 



Tribus : Ariindinelleae, 



Cyphochlaena nov. gen/) 



Spieulae secus ramos paniculae simplicis binae, heterogamae 

 et subheteromorphae, cujusvis paris altera siibsessilis, floribus 2 mas- 

 culis, inferiore interdum aboriente, altera breviter pedicellata, bi- 

 flora, flore superiore $, inferiore cf, utraqiie a latere compressa, 

 cum pedicello articulata. Glumae 4, infima a rhachi aversa, membra- 

 nacea, spicula brevior, aristara ipsa multo longiorera (in spicula cf 

 eam aequantem) exserens; 11. versus rhachin spectans, spiculam 

 aequans, in spicula $ coriacea, chartacea, mutica, in 9 merabra- 

 nacea, aristulata; III. spiculam aequans, in spicula $ obtuse tri- 

 angularis, gibba, demum subcoriaeea, mutica, paleam hyalinam 

 enervem floremque cf triandrum fovens, in spicula rf vix gibba, 

 membranacea, mutica, paleam floremque rf includens ; IV. spicula 

 paullo brevior, hyalino-membranacea, mutica, subcariuata, obsolete 

 o-nervis, paleam hyalinam obsolete 2-nervem floremque triandrum, 

 in spicula subsessili mere cf, in altera 9 includens, cujus ovarium 

 obovatum, glabrum stylis 2 breviusculis, stigmatibus elongatis un- 

 dique breviter plumosis ex apice floris exsertis terminatur. Oaryopsis 

 ignota. Gramen madagascariense humile, gracile, foliis planis flac- 

 cidis lanceolatis, spiculis in raeemos alternos spicas mentientes 

 dispositis, habitu Oplismenos referens. 



53. Cyphochlaena niadagascariensis nov. spec. 



Perennis. Oulmi basi decumbentes, radicantes, dein ascendentes, 

 15 — 20 cm alti, gracillimi, subcompressi, facie interiore (folium spec- 

 tante) pubescentes, ceteruin glaberrirai, plurinodes, basi ramosi, fere 

 ad paniculam usque foliati. Foliorum vagiuae arctae. teretiuseulae, 

 internodiis breviores, versus margines pilosae, ad nodos barbatulae. 

 Ligulae breves, truncatae, basi auguste raembranaceae, ceterum ci- 

 liares. Laminae e basi subangustata lanceolatae, acutae, 4 — 5 cm 

 iongae, 5 — 7 mm latae, flaccidae, patulae, utrinque plus minus pilis 

 adspersae, margine saepe undulato scabrae, tenuinerves. Panicula 

 linearis, e racemis subcompositis (spicis spuriis) G— 9 alternis facta, 

 8 — 8 cm lg. ; racemi patuli, sessiles, crassiusculi, subdensiflori, se- 

 cundi, rhacheos communis complanato-compressae glabrae interuodia 

 subsuperantes, inferiores 10 — 12 mm longi, e paribus spicularum 

 10 — 12, summi ad 5 mm lg., e paribus 5 — 6 formati, rhachi propria 

 angusta (spicula plus duplo angustiore), depresso-trigooa, setis e 

 tuberculis enatis spiculas superantibus obsita, spicula terminata. 

 Spieulae quadriseriales. seriebus 2 exterioribus e spiculis 9 sub- 

 distantibus factis, 2 interioribus e spiculis J" contiguis v. subimbri- 

 catis formatis, pedicellis brevissimis (spicularum 9 0*8 mm, rf vix 

 0*4 mm longis) apice Corona pilorum spicula duplo longiorum (in 



^) Von Kvcpog, höckerig, und x^cctva, Decke, Mantel, bei den Gräsern 

 Deckspelze. 



Oesterr. botan. Zeitschrift. 12. Heft. 1901. 34 



