33 



ppikelcts. Culms at first simple, becoming dichntomonsly branched, generally 

 purplish; nodes smooth; sheaths much shorter than the internodes, glabrous, 

 striate, usually slightly ciliate on the margins above; ligule a dense ring of hairs 

 about 2 mm. long; leaf-blades 5 to 10 cm. long, 3 to 10 mm. wide, acuminate, 

 glabrous, or with few papillate hairs at the base. Panicle finally long-exserted, 

 generally contracted, 5 to 13 cm. long; rachis glabrous; branches erect or ascend- 

 ing. Spikelets ovate, 1.4 to 1.6 mm. long; first glume small, one-fourth to one- 

 third as long as the spikelet, glabrous, 1-nerved; second and third glumes 



Fig. 9.—Pnnicum eatoni Nash: a, &, f, spikelets; r/, anterior view of third glume, showing small palea 

 f, flowering glume, dorsal view: /, the same, anterior view, showing palea. 



pubescent with spreading hairs, often densely so, 7-nerved; flowering glume 



about 1.3 mm. long. 

 Type locality. — Carolina and Pennsylvania. Type specimen in the Herbarium of 



the Paris Museum of Natural History. 

 General distribution. — In wet soil, especially near the coast, Maine to Mississippi, 



and Texas. IVIay to September. 

 Specimens examined. — Maijie: Shore of Chase's Pond, York, 510 ^I. L. Fernald, 1891. 



Massachusetts: Essex County, W. P. Conant, 1S91; Stoneham, 320, 336, 349 W. 



8613— No. 24— 00-— 3 



