ia 
50 TRIANDRIA. DIGYNIA. 
to Phalaris; its habit is that of Crypsis. To Agrostis it has 
no affinity whatever. : 
Of this genus there are only 2 other species, the 
C. aculeata, common to the south of Europe and Bar- 
bary, and like the C. squarrosa annual. The 2d spe- 
eies, C. Schoensides, grows in Italy, the south of France, 
Spain and Smyrna. These 2 species are nearly related to 
the genus Phlewn. ‘The C. squarrosa in the structure of 
the corolla glume, appears much more nearly allied to the 
genus Cenchrus. . 
76. PHLEUM. L. (Cat’s-tail Grass. Timothy- 
_ Grass.) ; 
- Calia: 2-valved, 1-flowered, valves linear with 
a retuse point, prominently carinate, each ter- 
minating in acusp (or short awn). Corolla in- 
_ ¢luded within the calix. : 
Flowers in dense cylindric spikes, simple, or partially 
divided, calix indurated, generally rough, ciliate or his- 
pid, flat and truncate, with the mid-rib going out into a 
shortish awn, ‘ 
_ Species. 1.P. pratense. (Introduced, now naturalized in 
the United States, and of great importance in agriculture.) 
o™?Phe few species of this genus (7) sre all natives of Eu- 
: » With the exception of the #. dentatum of the Cape 
-of Good Hope, which evidently belongs to some other 
47, POLYPOGON. Desfontaines. 
'  Calix 2-valved, 1-flowered, each of the valyes 
awned. Corolla 2-valved, shorter than the calixs | 
_ the exterior valve terminating in an awn, 
_ plant, or a new species, as he describes the spike to be 
_ compound, and the mid-rib of the calix extended into. an 
en twice: its length, with a corolla “ much smaller than 
_calix.” Mr. E. found it wpon Sullivan’s island, appa- 
naturalized, and net more than 6 to 10 inches high 
P. pratense, Six J. B. Smith, in Flor. Brit. says" 
