186_gft ) O ( as_ 
CAL. Gluma bival vis; valvulæ fubæquales ; ex¬ 
terior oblongo -lanceolata, ftriatula, plariuscu- 
la, margine altero inflexo-carinato, valvulam 
interiorem ample£tens apice ariftis duabus, vel 
etiam folitaria, granulofis terminata: Valvula 
interior priori fimilis, fed tenuior, arifta fupra 
apicem orta, longiore. 
Vili plures longitudine dimidiæ Glumæ bafin 
calycis cingunt. 
COR. bivalvis; Valvulæ muticae, oblongæ, hya- 
linæ , calyce minores. 
Neffariumï membranula minuta germen in¬ 
volvens, apice ariftata,' arifta flexuofa, flo- 
fculo quadruplo longiore. 
Cetera ut in congeneribus. 
Habitat in arenofis aridis, prope maris littors, in 
rupibus infulae Tannæ Maris pacifici, intra 
Tropicos; le£ta Augufto. 
JA- 
