\ 



TRTANDRIA DIGYNIA* 



430 



,11. ViRGlNlCA. 



* A. panic Lila contracta, 

 iiiiitica : foliis involute- 



^., 



Panicle contracted, iin- 

 awnecl ; leaves subulate, 



involute, rigid, expanding. 



siibulatis, I igidis, exstanti- 



r 



bus. Sp. pi. 1. p. ^7B, 



Walt. p. 77. 



Root creeping, jointed, perenniaL Stem 6 — 8 inches high, assur- 

 gent, terete, glabrous ; the lower joints very short. Leaves somewhat 

 uiatlchous, about 2 inches long, very entire, glabrous on the under 

 surface, a little scabrous on the upper, and somewhat glaucous ; 

 sheath> longer than the joints, ciliate at the throat. Panicle com- 

 pound, appressed, resembling a spike. Calyx^ the exterior valve half 

 the leugth of the corolla, acute, compressed, keeled; the interior sim- 

 ilar, and a little larger t!ian the corolla. Corolla^ valves nearly equal, 

 compressed, but not keeled; the exterior acute, somewhat mucronate j 

 t^e. interior obtuse. Anthers and Stis^mas white. Styles short- 



Virgiman M^grostis, 



Grows on the sands inundated by salt water, 

 i'lowers August 



September. 



V 



STIPA. 



\, 



Calyx 2-valvi3, iiniflo 



rus. 



Coi 



valvls. Arista 



basi 



contorta, decidu 



Calyx S valved, one 

 flowered. Corolla slioit- 

 er, 2 valved. Aivn 



ter- 



lougissima. 



1. AVENACEA. 



S. aristis nudis ; caly 

 3 semen 

 Sp- pi. 1. p. 



77. 



minal, contorted at base 

 deciduous, very long. 



} 



qu 



Walt. p. 



Clayt. p. 15, No. 621. 



Stipa barbata, 



Awns naked; caly 

 long as the seed. 



Mich. 1. p. 53. 



lloot perennial. Stemf.S feet high, erect, terete, glabrous. Leaves, 

 we lower orics 4—6 inches low^, the upper 1—2, scarcely one line 



Dell ' • I '^^'^"^ un<l€rneath, scabrons on the upper surface; nerves 

 i^. lucid; sheaths shorter than the joints; stipules membranous, emar- 

 ginate Pautc^e difi'use, few flowered; branches 5 '^ -"'"■ '— 

 S"" """^^^^"^ ^^^' i^ecluncles 1—3 inches long, -a.vc, «. ..u^ 

 (tut^ ^*^^''^y ef["al, membranous, concave, acuminate, glabrous, uith- 

 , ^^p^^- but faintlj marked {vith the midrib, tl>e joint sometimes 



"ended to an awn. Corolla ttipitatCj the stipe clvathed with {i shurtj 



7 inches long, 

 Valves of the 



m 



Jk 



