441 442 



than spkt, fig gm linear-oblg, terete, 2-4 cm Ig, rather pale; lateral spkt neu- 



obtuse to sh'ly awned, ribbed. tral or sometimes stam, their inner 



Variety MULTIFORUM Ab 58. empty gm obliquely lanceolate, 1 mm 



Ann or bien; spk oft p'ish, somewhat wide; fertile fl sessile. 



curved; spkt 15-30-fld; fig gm com with HORDEUM MTJRINUM L. 



a sh, slender awn. L, sp pi 85. Ab 60. Da 19, Er 1:102 



i. TEMULEKTTUM L, sp pi 83. Ab 58. LA Co. B 2:325. Z 1:184. 



Da 19, Er 1:102, 103 LA Co. B 2:323. Greene, Cal ac b 2:415, Cruz. Br 1:218 



Z 1:186. Rosa. 



Darnel. Ann; cu rather stout, 3-8 dm Ann; cu tufted, decumbent at base, 



hi, smooth; sheaths smooth, com some- 2-5 dm hi; upper sheaths smooth, scar- 



what exceeding nodes; spk stout, with ious on margins, oft dilated, lower pil- 



9-15 spkt; spkt 5-7- fld; empty gm not ose; Ivs softly pubescent and scabrous; 



ribbed, = or com exceeding spkt; flg gm spk stout, compressed, 5-10 cm Ig; cen- 



turgid, awnless or com with a straight tral spkt pedicelled; empty gm lanceo- 



awn 2 cm Ig or less. late, flat, ciliate; awns 18-24 mm Ig; 



Chollas (Or 1067); widely naturalized. outer gm empty gm of lateral spkt 



Variety ARVEN5E. Da 19. similar, inner awn-like and not ciliate; 



AG-ROPYRON J. Gaertn, in Nov Comm flg gm about 12 mm Ig, scabrous above; 



Petrop 14, I, 539 (1770). awn 2-5 cm Ig; flg gm of the lateral 



Ann or per, with Hat or involute Ivs spkt sm'er; awn 15-40 mm Ig; palea 



and terminal spk: spkt 3-many-fld, ses- ciliate on keels. Fox-tail. 



sile, 1, alt at each notch of rachis, Guadalupe; Cruz; Rosa. 



sides of spkt turned toward rachis: HORDEUM NODOSUM L. 



lower gm empty, nar'er and com sh'er L, sp pi ed 2, 126. secalinum fide IK. 



than flg gm, acute or awned; flg gm Ab 60. B 2:325. 



rigid, rounded on back, 5-7-nerved, com Per; cu erect, slender, 2-6 dm hi, 



acute or awned at apex: palea 2-keeled, sheaths glab; Ivs oft deflexed, flat, sea- 



keels oft ciliate: sta 3: sty very sh, brous, 5-8 mm wide; spk slender, corn- 



distinct: sd pubescent at apex, com ad- pressed, com nodding, 6-10 cm Ig, 8-10 



herent to palea. Wheat-grass. mm wide; rachis very brittle: lateral 



A. CANIHUM Reichenb, Sc Fl Germ t spk awnless, stam or neutral; fl of cen- 



119. B 2:324 a:s Triticum c. tral^ spkt sessile; empty gm not flat- 



A. DIVERGED Nees ex Steud Syn PI tened or dilated above base, all alike 



Gram 347. B 2:324 as Triticum strigo- and subulate; flg gm including its awn 



sum. 14-18 mm Ig; awn com brownish or 



Mont; Colo; N M; Cal; Wash p'ish. 



A. G-LAUOtHiE R & S Syst 2 "753 A 1- Bear valley (Parish). 



41 d. Eu. ' Variety DEPRESSTJM Scribn & Smith. 



A. PAEI3ISII Scribner & Sm. A 1:42 Ab 60 - 



fdr. Ab 59. Lower and more tufted than type; 



Variety ZiAEVE Scribner & Sm A 1-42 cu geniculate at base or erect, 1-3 dm 



fdr. Ab 59. Hall 54? hi; upper sheaths inflated; Ivs sh'er 



A. B.EPEN3 Beauv Agrost, 102. P 1-93 than type, com pubescent; empty gm 18 



Mig. Reich Ic Fl Germ t 120. Greene, mm 1 Z'< fertile flg gm with an awn equal- 



Huds. 



Cruz; Rosa; Potrero, Chollas (Or 498). Smith mt, S D Co (H. C. Orcutt); El 

 Va,.r. Al:r. HaU 



HORDEUM 



Ann or per with flat Ivs and terminal Arizona (Or 2514, a roadside weed near 



cylindric spk: spkt 1-fld, com in 3's at Cor;gress; 2522, along irrigating canal). 



each joint of rachis the lateral com sh- Genus ELYMUS Linnaeus. 

 stalked and imperfect; rach produced 



beyond fl: empty gm 2, all alike and Mostly erect rather tall, with flat Ivs 



subulate; flg gm nar-lanceolate, rounded and closely rid terminal spk: spkt 2-6- 



on back, rigid, persistent, obscurely 5- fld. uppermost imperfect, sessile, in 2 s, 



nerved above, com awned: palea nearly rarely in 3s or 4s, at alt notches of 



= gm, 2-keeled: sta 3: sty very sh, the continuous or articulate rachis; 



distinct: sd com adherent to gm, hairy rach articulate above empty gm and be- 



at summit. Barley-grass. tween fls: empty gm 2, nearly equal, 



H. AD3CENDENS HBK. A l:47d. rigid, nar, 1-3-nerved acute or awn- 



H. GUSSONEATTUM Parl PI Palerm pointed, persistent and subtending the 



244 in obs Sicilv Ab 60 fls like an inv; flg gm sh'er, rounded 



Much resembling H. maritimum in on back, obscurely 5-nerved, obtuse, 



habit, but inner empty gm only nar'ly acute or awned from apex: palea a 



flattened instead of wing-margined little sh'er than gm, 2-keeled: sta 3: sty 



along inner side. 0.5 mm wide. sh, distinct: sd adherent to gm and 



HORDEUM JUBATUM L. palea hairy at summit. Wild rye. 



L, sp pi 85. Da 19. B 2:325. ELYMUS AMERICANUS Vasey. 



Sa.n Diego, Cal. (Or 522). Sauzal, Baja (Or 1427). 



H. MARITIMUM With Arr Brit PI 172. E. COMDEN3ATTTS J & C Presl, Rel 



Eu. Africa. Ab 60. SD. Haenk 1:265. Da 20. Greene, Cal ac b 



Ann, rather glau; cu more or less de- 2:415 Cruz. Br 1:218 Rosa. P 1:93 Mig. 



cumbent at base, tufted, 1-2 dm hi; spk Ab 61. 



