TRIANDRIA DIGYNIA. 



119 



Grows. 1 rare. 2 very common in wet ground ; well known to 

 rice planters as the red sliank "raas. 3 on Edinj;'s Island, around 



poncls. 



Flowers throuah the summer. 



Cifcksfoot 



rJ 



7. WALrERI. 



P. spicis alternis, sub- 

 appressis, unilaterifloi'is ; 

 floribus triseriaiis, niuti- 



"■en- 



CIS : ficemmis bifloi 



f & 



E 



Spikes alternate, ^ 

 ally appressed, flower- 

 on one side ; flowers 

 in 3 rows, unawned: buds 



b 



P. dlmidiatum, Walt. p. 72. 



Root annual ? Stem erect, sti 

 Leaves 4 — 6 inches lonsr. £ 



flowered 



.? 



zontallj ; sheath open, glabrous, generally shorter than the joints, at 

 the throat ciliate. Spikes 7—12, the lower ones remote, about 1 inch 



I6hg. 



, Rachis triquetrous, scabrous. Calyx 2 flowered, hermaphro- 



dite, and male. Valve of the small flower lanceolate, nearly flat, 



xvith the margins inflected, as large as those of the hermaphrodite 

 nower. Filaments'"' a^*i.^~- 1-- _rxi. _ , « r. „ 



3. 



Stigmas purple. 

 This 



Mthers purple; of the male flower similar. 



■p n n^^n!^^ sometimes approaches to the var. muticum, of the 

 r. Lru3 Gralh, but its spikes are always smaller and more remote ; 

 Its tlo\v'crs too are smaller, and the calyx less hairy. 



Grows in damp soils. On Charlesto;i neck, common. Macleod'f 

 pomi, 6i miles from Savannah, on the Ogecheeroad. 



Flowers through the summer. 



fValter^S Panicum, 



8. HlRTELLUM 



P 



spica 



posit 



spiculis appressis, alter 

 nis ; caljcis valvulis om 



Spike 



compound 



pikelets appressed 



9 



ftibus aristatis 



valv 



al. 



of the 



) 



longissima. 



p. 340* 



Sp 



exti nia | calyx all awned, exterior 



awn very long. 



m 



Mich. 1. p. 47. 



sli?hTv^romn "'''• I T-' P^^^"!^^^^*' creeping, Sometimes ascending; 

 Wceolal T'?'"^' u"''^' particularly at the' joints. Leaves ovate! 



basrawJ'' 'l'''^^?"''^'''^"'^*^'^F'»^l^^^ ^^'t^^ «^^ort hairs, the 

 sheath Tnf ^°"f '^^^^^ *« a petiole, which afterwards dilates into a 



S. In ?^" *''^ J"*'"*'' ^^i*'^ the margin and throat hairy. 



^^mhLTP''^?^' T'****"' ^^'"Poaed of spikelets 5—8 flowered, re* 

 sembUng fascicles. Rachis short, angled, villous. Caly.v 1 flowered ; 



purple ; that of the accessory valve the longest, .intlmrs 



awns al 



white 



i>tismas feathered, sanguineous 



■^* 



Y- 



