166 



TRISNDRIA DIGYNTA. 



Grows m cultivated lands. Very common. 

 ImfMirted. Appears to connect the genus Poa to 

 Flowers June — November, 



Per5iaps originkll/ 

 tlie Briza. 



Coiumon Briza, 



UNIOLA. Gen. pl. 116. 



Calyx multivalvis. Spi- 



Calijx many valved. 



cilia ovata, compressa, | Spikes ovate, compress- 

 carinata. /S'^/y/ibrevissimi. j ed, keeled. Stifles \cry 



JSfectaiium diphylluin, 



e- 



maminatum. 



o 



E. 



4. 



Panic CLATA. 



short. tNectarif ^lemnd, 



emarginate. 



Panicle large, com 



U. panicula majusciila, 

 compressa ; spiculis sub- | pressed ; spikes nearly 



5 valv 



ed ; flowers triandrous. 



sessilibus; calyce 5-val- sessile; calyx 4 



VI ; floribus triandris. 



Sp. pl. L p. Ckjt. p. No. 909. Walt p. 79, 

 V. niaritima, Mich. 1. p. 7i. 



Boot perennial. Stem eretct^ 4 — 8 feet high, columnar, glabrous. 

 Leaves 3 feet lung, narrow, very acute, entire, flat, not channelled, 

 glabrous, with the upper surface sliijhtlj scabrous ; sheaths loiifjer 

 than the joiuts, densly fringed at the throat, spikes many flowered, 

 (10) ; the upper florets generally sterile. Exterior valve otthe foroto 

 compressed, rather obtuse. 



slightly mucronate, 8 nerved besides the 

 jrrulate near the summit ; margins sligntly 



keel J nerves double ; ke^l sen 



fringed ; the interior of the same length, the margins bent back an 

 ciliate. JV'ectary 2 leaved, covering the germ, unequally 3 cleft. Sis 

 mens 3. ^ntfien; yellow Styles with the Stigma, only half as long 

 »s the corolla. * Stigvias plumose, white. »VceJ oblong. 



Grows abundantly on the sand hills that border the ocean. 



Sea-shore Vniol^ 



Flowers July ^August. 



SeH'i>ide Oats: 



S. SplCATA. 



U. ioJiis distichis, in- 



voliitis 



K 



Leaves distichous , in- 



panicula com- volute 



J 



pressa; calyce 2 — Svalvi; | pressed 

 spiculis subsessilibus : 



.N 



paui 



icle com 



> 



calyx 



floribus tiiaiidris. 



E. 



valved 

 sessile 



dro us . 



> 



s 



spike 

 flowers 



g^3 



nearly 



triaii- 



\ 



* 



T" 



