662 POACE^. 



3. G. melieoideum (Michz.) Desv. 1. c. Aira 7nelicoide8 Wiohx. 

 Fl. Bor. Am. 1:62 (1803). G. melicoidea Beauv. Agrost. 77, /. 

 16,/. 8(1812). 



An erect rather slender slightly tufted, light-colored perennial, 

 30-60 cm. high. Sterile shoots few; leaves of the culm 5; sheaths 

 4ibout the length of the internodes; ligule about 2 mm. long; blades 



Fio. 118. — Oraphephorum melicoidea. Spikelet. (Richardson.) 



scabrous, erect, flat, 15-30 cm. long, 3-.5 mm. wide, apex long- 

 pointed. Panicle open, slightly nodding, 0-14 cm. long, rays in twos 

 and threes, the longest 7 mm. long, flower-bearing on the outer half. 

 Spikelets usually 2-flowered, 6-8 mm. long, rachilla flattened, hairy 

 on the margins and slightly so on the outside ; first empty glume 1- 

 nerved. 4-5 mm. long, second a little longer, 3-nerved, widest above 

 the middle; floral glume 4-6 mm. long, 5-nerved, mucronate- 

 pointed; palea 3.5-3.7 mm. long. Nearly allied to Trisetum. 



Maine and Vermont, Prm/jr/e; Massachusetts, Faxon 21', Michi- 

 gan, (Macomb Co.) Cooley, (Hubbardston) Wheeler 111. 



Dry bluffs, northern Maine, northern Vermont, central Mich- 

 igan and northward ; not common. 



Var. Cooleyi (A. Gray) Scribn. Mem. Torr. Club, 5: 53 (1895). 

 Dupontia Cooleyi A. Gray, Man. Ed. 2, 556 (1852). G. melicoides 

 var. major A. Gray, Ann. Bot. Soc. Can. 1: 57 (1861). 



A luxuriant form, 60-90 cm. high. 



Borders of swamps, Michigan, (Macomb Co.) Cooley, (Hubbards- 

 ton) Wheeler 109, (Agricul. College) Beal 110. 



4. 0. Wolfli Vasey, Desc. Cat. Grasses U. S. 55 (1885) ; Coult. 

 Man. Roc. Mt. Bot. 423 (1885). Trisetum Wolfii Vasey, Wheeler's 



