7% TRIANDRIA. DICYNIA. 



number. The perisporium appears almost precisely th« 

 sane as that of many spcCit-s o\' Fesiuca. 



Species. 1. U.pajiimlata. 2 spLcata. o. ladfoUa. Af.niti^ 

 da. 5. gracilis. (An American genus ) 



99. ^WINDSORlA.f 



Calix carinate, man} -flowered, 2-valvecl; 

 valves rather lare^e, scari'-.sc, uninei'vial, acute 

 or enspi'tate. Spikelets tliirk; fliwers closely 

 Inrinubent., and (Usti( haiiy nsihii-attd; nerves of 

 the dfjrsal xMw inJirrunatc, witli intermf^diate 

 densuies, ciliate below: inner valve mostly na- 

 lit'tl, emariL':inn!e. iStifles si* nder, with simply 

 pe( linated stign-as. Seed (altife.rn!, ( orrujj'ate, 

 impressed with a flat, central, oval hilujii near 

 its base. 



Flowers paniculate, b^-ancbes frw, decompound, spread- 

 ing, and fl. xnose, stipules always pilose; spikelfls nearly 

 sessde, iiimid, gfeneraUy pur; le; corolla g^lumes short, 

 indurated, somewhat catilag-inous; nerves ending- \v short 

 cusjjs or minu'e awns; fiowers villous at the base, and 

 alouii- the lover margin of the nerves in the outer valve; 

 the inner valve impressed, smooth, or when seen throntrh 

 a lens obsoletely marg-ijied with a slender cilia'e pui^es- 

 cence, (never conspit uous as in Bi-omus,) die lower in- 

 flected marp;ms projeriing-. Stamina 3. Styles 2. Germ 

 antiularly truncate. Seed short, nearly in 'tl)e form of a 

 shpper, on the external side obliquely compressed, on the 

 other convex., Perisporiun. 2-leaved, ohtr.se, entiie. 



Species. 1. fV. Po.eformisy {Poa Se-ileroides, Mich. 

 p. qinnqitefida, Pursh. Spikelets mosll\ 5-flowered, exte- 

 rior valve of the corolla ov.te, convex, trlcuspklate, with 

 2 intermediate tteth, inner vaive with 2 setaceous lioints, 

 smoo-h.) 2. atnl/igua, (Poa a7nbigita, Ei.1^1 oil ) Panicle 

 small, naked, ramuli nearly simple, alternate; spikelets 

 ovate, tiiick, sessile, 5 to 6-fiowered, dorsal valve 5-tooth- 

 ed, interior valve deeply impressed, smooth. In both 

 these species the stig-masare purple and plumose. 



This g-enus apj)ears to be coJisiderably allied to J9ro- 

 miis, possessing", Itowever, much more the habit of Poa. 



-j- In respect to my earliest Botanical triend, J)!m Windsor, 

 M. D, F. I.. S., an assiduous Knglish Botanst, not unknown to 

 the president of the Linnsean Society, as a humble thoug-h not 

 a popular contributor to his classical Flora of Britain. 



