13^ 



TRIANDRIA DIGYNIA. 



4 



AGROSTIS. 



Calyx S-valvis, uniflo- 



Cahjx 2 vf?Ived, 1 flow. 



rus, coj'olla paulo raitior. I ered, smaller than the 

 stigmata longiiudinaliter I corolla. Stigmas longi- 



E. 



Arhtafce. 



i. Arachnoides. 



A. panicula elongata, 

 gracili ; calycibus corol- 



tudinally hispid. 

 * Jhvned, 



Panicle 



calyx 



long, slendei 



1 * 



scarcely 



longer 



\\ vix longioi ibus ; pe- | than the corolla ; the ex 

 talo exteriore clorsifaris- terior petal awned on the 



tato ; arista prjelonga^ de- 

 bilL E. 



back; 

 weak. 



awn very long; 



Boot fibrous, perennial. Stem erect, 4 — 8 Inches higl), slender, 

 glabrous. leaves linear, 1 — 2 inches long, slij^htly scabrous along 

 the marjrins; sheath as long as the joints; stipule membranous, lace- 

 rate? JPanic/e long for the size of the plant, branches capillary; 

 Talves of the calyx equal, lanceolate, acute, the keel serrulate. Ex- 

 terior valve of the corolla lanceolate, acute, nearly as long as the ca- 

 lyx, bearing on the back, above the middle, an awn 5 or 6 times its 

 own length, and so weak tliat it resembles the thread of a spiders 



Filament one^ 



web; interior valve 0, or merely like a 



very short. Anthers purple, i^t^les very short. 

 white. 



bristle ? 



'stigmas feathered, 



From specimens collected near Orangel)urgh, by Mr. I. S. Bennett 

 Flowers April — May. Weak-awned Jgroftis. 



I f ould discover but one stamen in each flower. This species af 

 fears to connect very closely the Agro&tis and Trichodium. 



i 



S. Texiuflora. 

 A. panlculaj simpl 



If 



Panicle 



y 



Sim SB, ramis appressis : with the brai 



simple 

 es ap 



curollis aristatis ; aristis pressed ; corolla awned 



f!ore longioribus 

 1. p 



Sp.pl 



awns Ion 

 flowers. 



& 



tlian the 



Root perennial 



jlabrous, leafy. Leav 

 brous 



Stem 



slender 



decumbent, branched, terete, 



2 lines wide, flat, ^c^- 



--v." ' sheaths Ion- er than tiie joint ; stfpules membranous, '^f^^'f^ ' 



fM^x 2 vaived, valves unequal, acuminate, compressiijdj keels sc • 



'3 inches long, I 



^ 



