238 PLANTS OF MASSACHUSETTS. 



A. Pennsylvanicum. Tor. Grows in the same situations as 

 Danthonia, in Berkshire County. 



These grasses are not of great consequence. 



Cinna. L. 3. 2. 



C. arundinacea. L. Reedy Grass. Named from the Greek 

 to burn or heat, from supposed effects of a plant upon cattle. 

 Loudon, 



This is a slender, delicate grass, erect, lax, with lax branches 

 of flowers, in moist woods ; appears to be sought for by cattle ; 

 common, but not abundant ; June. 



Arundo. L. 3. 2. Reed Grass. 

 Derived, perhaps, from the Celtic for water. Loudon. 

 Glume 2-valved, beardless, unequal, naked ; paleae membranous, 

 2, with bristles at the base, lower one mucronate ; flowers in 

 spikelets. 



A. Canadensis. Mx. Widely spread over wet grounds in 

 this State ; larger than the last ; 3 - 5 feet high, erect, stiff ; in 

 its young state eaten by cattle. 



A. coarctata. Tor. Grows about salt marshes. 



A. phragmites. L. Common Reed. The specific name is 

 from the Greek for hedge or separation (Loudon), probably from 

 the use of it ; common to Europe and this country. Grows 

 about ponds and in marshes, 6-10 feet high, large, with broad 

 and long leaves, and with a large, spreading panicle of flowers 

 and fruit, so as to resemble Indian corn at a distance. In Brazil, 

 the reeds grow from 30-60 feet high. The common Cane 

 fishing-pole, imported from France, Spain, Italy, &c, where it 

 grows in abundance, is A. donax. 



Psamma. P. de B. 3. 2. 



P. arenaria. P. de B. Has been taken from Arundo ; 

 grows 2-4 feet high, of a sea-green color; leaves wide and 

 rather short ; close, erect plant ; found in the sands of the sea- 



