58 TRIANDRIA DIGTNIA. 



distinct at the base; calix valves carinate, with very long 

 subulate points, and twice the length of the corolla; co- 

 rolla cylindric, st pitate; awns smooth, nearly equal, very 

 long-, spirally convolute, and growingf together towards 

 the base. 



Culm with very few articulations, (2 to 3 feet high.) 

 Sheaths of the radical leaves mostly lomentose; leaves 

 smooth, very long and subulate. Branches erect, remov- 

 ed from the culm, and the flowers often from each other 

 by the interposition of small callosities at tlieir base. 

 Valves of thecalix subulate, often more than an inch long. 

 Flowers distinctly stipitate, siipe villous; awDS twis ed 

 to.uether at the base, nearly equal, more than 2 mches 

 long. 



In the sandy pine forests of Georgia, a few miles from 

 Augusia. 



Of this genus there are 5 other species described as 

 growing in the West Indies and South \merica, 1 in the 

 island of renerifte, 7 in India or the nrighbouring islands, 

 2 at the Cap*- of Good Hope, 1 in New Holland, I in 

 Spain, and 3 in Barbary, of which the *4. pungens is a 

 shrub with plumose awns. 



S6. STIPA. i. (Feather-grass, Lorig-avviied 

 grass.) 



Calix 2-valved, 1 -flowered. Corolla shorter 

 than the calix, 2-valved; valves invtdiite and 

 truncate. Jwn terminal, very long, deciduous, 

 and contorted at the base. 



The iiabitus of this genus is so very similar to that of 

 the preceding that we shall omit the repetition. Here, 

 however, the corolla glume is only terminated by a single 

 awn, but often of prodigious length, in some species ele- 

 gantly plumose, frequently contorted near the base. It 

 is described as deciduous though apparently often with- 

 out any good reason. 



Species. 1- S. avenacea. 2. CanadeJisis. S.juncea (of Eu- 

 rope as described by Linnaeus with tlie " awns (nearly) 

 straight and withon* ^^ubescence." The African variety 

 figured by Desfonta^.i^a, has twisted pubescent awns, and 

 blunt seeds; the Missouri plant has a nerved chaffy loose 

 calix, filiformly acuminated to more than double the 

 length of the seed, which last is acutely stipitated about 

 one third of its length, the stipe pubescent, the seed ra- 

 ther obtuse, distinctly articulated to the awn, which is 



