044 POACEiE. 



(1. Joint of r.'icliis 1 mm. long 4,5 



(1. Joint of nic'his ;{ mm. long 6 



0. Spikclets all furtilc 7 



e. SpikeUfts with tlio latonil onc'9 stcrilo 8 



1. H. jubatum L. Sp. Tl. H5 (1T5;3). SqiiiMu-.L-TAn. Grass. 

 CritesKin (irnirnlatuiit Kiilin. ,Tonr. Piiys. 8!): lo;{ (ISI!)). 



A smootli annual or biennial, 30-45 em. high. Culms slender, 

 protruding 5-15 cm. above the sheath. Slieuths sliorter than the 

 internodes; ligule 1 mm. long; blades of tho upper leaves 4-7 cm, 

 long. 8])ike 4-7 em. long, raoliia very slender, breaking in pieces 

 when mature, each piece 1.3 mm. long. Lateral spikclets on 2)edi- 

 cels 1 nun. long, central one sessile; emjjty glumes ca])illary, j)alo 

 straw-color or purple, 4-6 cm. long, recurved wlicn mature and 

 dry; iloral glume of the lateral florets small and sliort-awned, tluit 

 of tho perfect floret with an awn much like tiioso of tlie emi)ty 

 glumes. Grain elliptical, flat-concavo, 3 mm. long, 



Vermont, Pringlc ; Micliigan, Clark, Ileal, Fnrwell ; Iowa, 

 Hitchcock; Illinois, Ikhh, HeancA; .Minnesota, Arthnr B 128; 

 Montana, Anderson 39; Colorado, Cass id y ; Wasliington, L((ke, 

 Sandhcry 2i' \ Oregon, IloircU. 



On tho seacoast and saline soil, about tlie Great Lakes and 

 elsewhere. 



AVidely distributed. 



Were it not for the breaking of the spikes so freely, it would bo 

 cultivated as an ornamental grass. 



2. H. Montanense Scribn. ined. 



Culms smooth, slender, about 80 cm. high. Leaf-blades flat, 

 scabrid, 10-15 cm. long, 4-7 mm. wide. Spike exserted, some- 

 times purplish, 6-8 cm. long, Avith internodes about 3 mm. long. 

 Empty glumes 10-20 mm. long, 0.3-0. 5 nmi. wide. Central spike- 

 kt 9 mm. long, the perfect floret bearing an awn 15-25 mm. long; 

 second floret merely an empty glume ; floral glume scabrid or shortly 

 hairy, 5-nerved; palea a little shorter than its glume; florets of 

 lateral spikclets raised on a pedicel about 1 mm. above the central, 

 each consisting of floral glume, i)alea, lodicules, a rudimentary pistil 

 and sometinu'S a se(!ond floret reduced to a small empty glume. 



