58 TRIANDRIA DIGTIVIA. 



distinct at the base; calix valves carinate, with very lon^ 

 subulate points, and twice the leng'th of the corolla; co- 

 rolla cylindric, st pitate; awns smootli, nearly equai, very 

 long, spirally convolute, and growini>f togeiher towards 

 the base. 



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

 Sheaths of the radical leaves mostly tomentose; leaves 

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

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

 by the interposition of small callosities at their base. 

 Valves of the calix subulate, often more than an inch long. 

 Flowers distinctly stipitate, stipe villous; awns twisted 

 together at the base, nearly equal, more than 2 inches 

 long. 



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

 Augusta. 



Of this genus there are 5 other species described as 

 growing in tiie West Indies and South America, 1 in the 

 island of I'enerifle, 7 in India or the nt ighbouring islands, 

 2 at the Cape of Good Hope, 1 in New Holland, I in 

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

 shrub with plumose awns. 



86. STIPA. Z. (Feather-grass, Long-awned 

 grass.) 



Calix 2-valvccl, 1 -flowered. Corolla shorter 

 than the calix, 2-valved; valves involute and 

 truncate. Jixvn terminal, very long, deciduous, 

 and contorted at the base. 



The habitus 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. Cayiadensis. S.jujicea (of Eu- 

 rope as described by Linnaeus with tiie '' awns (nearly) 

 straight and without pubescence." The .\frican variety 

 figured hj Uesfontaines, has twisted pubescent awns, and 

 blunt seeds; the Missouri plant has a nerved chaffy loose 

 calix, fiiiformly 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 



