HOHDILE. G49 



1. E. arenarius L. Sp. PI. «:> (IT"):}). Iiaucheuia Grass. 

 Culms stout, glaucous, \-:l m. or more high, from creepiug 



rootstocks. Sheaths smooth, ligulo very short; blades strict, pun- 

 gent, 30 cm. long, 10-15 mm. wide, the upper sliort. Spike dense, 

 strict, 15-30 cm. long, 1.5 cm. broad; rachis hirsute. Spikelets 

 2-3 at a joint, 2-3 cm. long, appressed. pubescent, mostly 3-llo\vered ; 

 empty glumes linear-lanceolate, o-'i-nerved ; floral glume rigid, 

 ciliate, keeled toward the cuspidate a])ex ; palea a? long as its glume. 



It considerably resembles B. mollis. 



Alaska, Fumton for Nat. Herb. 140; Washington, Iloioell, 

 Sul-sthrf \{)?,S. 



Sandy seashores, Alask'a to California, also in Europe and 

 northern Asia. 



2. E. mollis Trin. Spreng. N. Endt. 2: 72 (1821). 



Culms stout, .SO-170 cm. iiigh. Leaves much like those of 

 E. arc/Kirius. Spike erect, 20-30 cm. long. Spikelets 2-3 at 

 each joint, 2-3 cm. long, 5-8-llowered, more or less soft-pubescent. 

 Empty glumes as long as the spikelets, 5-7-nerved; floral glume 

 ^ j-20 mm. long, T-nerved. 



'J'his is much like JJ. arenarius. The leaves and spikes are 

 softer, the empty glumes more ciliate and broader and often 

 7-nerved. 



Maine (Kastport), Iicall(\2; Isle of Shoals, Caiihy. 



3. E. dasystachys Trin. Ledeb. Fl. Alt. 1:J20 (1829). E. 

 Vancourerensis Vasey, Bull. Torr. Club, 15:48 (1888). 



Culms smooth, rather stout, 60-SO cm. high from creeping 

 rootstocks. Leaves scabrous throughout, or the sheaths smooth; 

 ligule very short; blades rigid, more or less involute, pungent- 

 pointed, 20-35 cm. long, 5-8 mm. witie. Spike strict, 8-12 cm. 

 long. Spikelets 2 at each joint, 15-20 mm. long, closely imbri- 

 cate, 4-7-flowered ; empty glumes equal, 13-15 mm. long, more or 

 less ciliate, sliort-uwned, narrowly -lanceolate, 3-nerved ; floral glume 

 slightly ciliate, the lower one 12 mm. long, besides the short awn. 



Montana, William h ; Vancouver Island, J/«to?</<; Washington, 

 Howell. 



Alaska to Wtishington. 



