202 HISTOIRE DES PLANTES. 
GENERA 
I. AVENEÆ 
Â. Avena T. — Flores in spiculis 2- æ, hermaphroditi, v. splèt- 
larum superiores masculi v. imperfecti. Glumæ 9, muticæ impar- 
nerves, sub rhachillæ articulatione persistentes. Glumellæ 2 : ext 
dorso rotundata, apice nunc breviter 2-fida, dorso sæpe arista genl- 
culata basique torta instructa; intima autem angusla, 2-dentati 
v. 2-fida, 2-carinata. Stamina 3; antico À; antheris subbasifis: 
loculis ad margines rimosis, basi et apice liberis. Glumellulæ antic ? 
basi crasso-carnosæ. Germen 1-loculare; ovuli adscendentis mer 
pyle extrorsum antica. Styli 2, distincti breves, apice plumosi. Fructis 
(caryopsis) oblongus, apice pilosus, inclusus, liber v. Cum glumè 
intima plus minus adhærens; albumine farinaceo; embryone anti 
infimo. — Herbæ annuæ v. perennes ; habitu vario; folis alter 
ligulatis angusto-elongatis, planis v. setaceis; inflorescentià (pan 
cula ») spiciformi, stricta v. laxa ; ramis inæqualibus; spiculis erecls 
patentibus v. pendulis; rhachilia supra glumas inter flores perfect” 
articulata. (Orbis utriusque reg. temp.) — Vid. p. 139: 
2. Arrhenatherum PAr.-BEauv.! — Flores (fere Avent) È 
Spiculis 2; inferiore masculo; superiore autem hermaphrol” 
(v. nunc fœmineo); rhachilla ultra utrumque producta. Gr 
membranaceæ v. subscariosæ, breviter acuminatæ® carinalié *, 
arliculatione rhachillæ persistentes. Glumellæ in floribus singul * 
IMparinervis rigidula, in flore masculo prope basin longe 10 
tôl, 
AL 
we kde, 56, t. 11, fig. 5. — K., Gram.,  — ENDL., Gen., n. 865. — B- DE 
*— N6es, Fl. germ., Monoc., 1, n. 49. n, 163. Hack., Pflansenfams °° 
