AIRA. е 55 
Lodicule 2, Filam, vestigia 3. Rud. ovar. nullum. 
Flosc. superior minor hermaphroditus. 
Pale: 2, membranaceo-chartacez, exterior major concava, 
5-venia, apice producto in aristam scabram, paleam subzequan- 
tam rectam. Р 
Interior plana, apice integra, bivenia, marginibus involutis, 
basin versus utrinque auriculatis. 
Lodiculz 2, oblique cuneate, denticulate, margine supero 
fisso. 
Stam. 3, filam. rudimento tantum vide. Ovar : obovate gla- 
brum. Styli 2, umbone conico conspicuo interjecto. 
Stigmata plumosa, ratione stylorum longa, (3 plo excedentia.) 
Caryopsis paleis inclusa, libera, levis, oblongo-elliptica 
utrinque rotundata, breviter stipitata stylorum basibus et um- 
bone terminata. 
Embryo paralleli compressus, palee exteriori opposit ! 
maximus. | 
Gramen erectum 1-2 4 pedali, vaginis pubescent. foliis. 
ciliatis. 
Ligula obsoleta, culmi spiceeque cano- pubescentis. 
Ab Ischzmo distincte, glumze exterioris crista, palea gluma- 
cea floris masculi et glumarum consistentia; a Panico vix 
separandum. 
Panicum viaticum Nob. MSS. It. Ass. 178. 
Advias raro Churra Punjee : October 18th, 1835. 
3. Aira, sp. Pl. CXLVI. Fig. III. 
Spiculz breviter pedicellatz, 2-4 cuique spicæ Шы: in 
paniculam ovatam densam erectam subcapitatam contractis,) 
biflore compressiuscule. 
Glumze subdistantes inequales, acutato-aristate, carinato- 
naviculares, aristis scabris presertim superior que multo 
major, membranacez, exterior 3-venia carina venisque latera- 
libus scabris, superior 5-venia, carina scabrella czterum læ- 
vis. 
