521 



branches; spkt including awns about 3' 

 Ig, 5-8-fld: gm hyaline except the nerves, 

 the upper nearly equalling the floret: 

 lower palet very rough, about 10" Ig, the 

 teeth 2" and awn about 2' Ig. So Eu, SF, 

 Ar, Wash. 



McClatchie, Erythea 2:78, Cat. 

 Pt Loma, SD (Or 1059). B. rigidus 

 Roth. 



Type from northern Africa. Stanford 

 University (C. Ritter 305), California. 

 Var. GUSSONI ParL 



"Ann; cu erect or ascending, 4-7 dm 

 hi, smooth; sheaths pilose-pubescent; li- 

 gule 3-4 mm Ig; Ivs linear, 2-3 dm Ig, 

 3-5 mm wide, pilose on both sides; pan- 

 icle somewhat drooping, secund, lax, 1-2 

 dm Ig; lower branches 2-4, 3-5 cm Ig; 

 spkt 5-7-fid, 3.5-5 cm Ig; empty gm lanceo- 

 late, acuminate, smooth, first 15-20 mm 

 Ig, 1-nerved, second broader, 25-30 mm 

 Ig, 3-nerved; flg gm 5-nerved, 25-30 mm 

 Ig, strongly scabrous, 2-tootbed, teeth 

 hyaline, 3-4 mm Ig; awn stout, 3.5-4.5 

 cm Ig, rough; palea somewhat sh'er than 

 its gm. Com along streets and in waste 

 places." Ab 54. 



Most So Cal plants probably belong 

 to this var. 



Bromus eussoni Parl Rar. PI. Sic. 2: 

 8 (1840). 



Bromus sterilis Gus Fl. Sic. Prod. 

 Suppl. 1: 27 (1832). 



Larger than the type, 4-7 dm. tall, 

 larger and more lax panicle, 1-2 dm. long, 

 with the upper part somewhat drooping. 



Arizona, California, Washington, In- 

 cutt 1059). 

 troduced. San Diego, California (Or- 



BROMUS ORCUTTIANUS Vasey. 

 Vasey, bot gaz 10:223 (1885). Ha 55. A 

 1:45 fdr. Shear. DA, agros b 23:42 (3 Jl 

 1900). Ab 55; GabrieV, SBer mts. 

 Var. GRANDIS Shear. 

 Shear, D-A agros b 23:43. Ha 55. 



"A very stout, erect per 14-15 dm hi, 

 very leafy below. Sheaths, Ivs and cu 

 pubescent thruout. Panicle about 2 dm 

 Ig and nearly as broad at base at ma- 

 turity when the branches are spread 

 more or less horizontally. Spkts pubes- 

 cent thruout. Its distinguishing charac- 

 ters are its size and pubescense. In 

 other respects the plant is like the spe- 

 cies. Type No. 472, collected by C. R. 

 Orcutt at La Maite [La Monte, near El 

 Cajon], SD. The only specimen seen." 

 Shear, lc. Coll 25 Je 1883 and distribut- 

 ed as B. ciliatus L. 

 B. FOBTERI 



Variety ASSIMII.IS Davy, Cal Univ pub, 

 bot 1:55, based on var. lanatipes Shear, 

 D-A agros b 23:37 (1900), in part. Mt 

 Brome. A 1:347 d. 



Variety LANATIFES Shear. A 1:347 as 

 var. assimilis. 

 B. FIIiOSA Z 1:59. 



B. PUBESCENS Muhl, in Willd En 120. 

 B 2:320 as ciliatus L. 



B. PURGANS L, sp pi 76. B 2:320 as 

 ciliatus. Hook, Fl 2:252 (= ciliatus in 

 part fide B 2:320). 



B. EACEMOSUS L, sp pi ed 2, 114. B 2: 

 320. Eu. 



BBOMTT3 BICSABDSONI. Link. Hort 

 Berol 2:281. 



522 



Per; 6-13 dm hi, smooth; sheaths 

 smooth below or sparsely pilose, pilose 

 at throat; ligule 1-2 mm Ig; Ivs linear- 

 lanceolate, 15-25 cm Ig, 5-12 mm wide, 

 com scabrous above and glab beneath; 

 panicle drooping, 15-25 cm Ig; spkts 

 drooping, terete, acuminate, becoming 

 oblg, lanceolate and compressed, 2-3 cm 

 Ig, 6-11-fld; empty gm smooth, the 1st 

 acutish, 8-10 mm Ig, the 2d 9-12 mm Ig; 

 flg gm obtuse, 7-nerved, 12-15 mm Ig, 

 appressed ciliate-pubescent nearly to 

 apex; awn straight, 3-5 mm Ig; palea 

 slightly sh'er than its gm. 



Ab 55. "Frequent on wooded slopes 

 and in canyons in all our mts and foot- 

 hills." 



B. RIGIDUS Reichenb Ic Fl Germ 1:31 

 no. 1SS6. B 2:319 as rubens. 

 BROMUS RUBENS L. 



L, Cent pi 1:5. Da 19, Er 1:101, Monica 

 (Hasse). Z 1:183. B 2:319. Eu, Ore, 

 Ab 54. Port Ballona; SBer; etc. Kan- 

 sas, Mass. 



Ann; cu about 2-5 dm hi, erect, pu- 

 berulent above; sheaths pubescent; ligule 

 1-2 mm Ig, Ivs 3-15 cm Ig, pubescent on 

 both sides; panicle erect, compact, com 

 p'lish, 4-7 cm Ig; spkts mostly 7-11-fld, 

 2-2.5 cm Ig; empty gm acuminate, pub- 

 escent or scabrous, 1st nar, 1-nerved, 7-9 

 mm Ig, 2d 3-nerved, 10-12 mm Ig; flg 

 gm 13-16 mm Ig, lanceolate, acute, ;- 

 nerved, scabrous or appressed scabrous- 

 pubescent, teeth 4-5 mm Ig; awn 18-21 

 mm Ig; palea Ig ciliate-pectinate on the 

 keels. 



B. SCHRADERI Kunth, En 1:416. B 2: 

 322 as Ceratochloa unioloides (vide 

 Bromus u.) 



B. SEC ACINUS L, sp pi 76. Eu. Ab 

 53. B 2:319. Z 1:183. 



Ann; cu 3-7 dm hi, smooth thruout or 

 somewhat pubescent on nodes; sheaths 

 smooth or sometimes sparsely pilose- 

 pubescent; Ivs 1-2 dm Ig, coarsely and 

 sparsely pubescent above, smooth be- 

 neath; panicle 8-18 cm Ig, erect, the up- 

 per part drooping in fr; spkts-ovoid- lan- 

 ceolate, 10-18 mm Ig, 6-8 mm wide in fr; 

 empty gm smooth, obtuse, 1st 4-6 mm 

 Ig, 3-5-nerved, 2d broader, 6-7 mm Ig, 

 7-neryed; flg gm 7-nerved, 6-8 mm Ig, 

 elliptic, obtuse, smooth or scabrous; awn 

 undulate, 3-5 mm Ig; palea equaling the 

 gm. 



B. STERXI.IS L sp pi 77. Eu, Asia. B 2: 

 319. 



B. STRIGOSUS Bieb, Fl Taur Cauc 3:81, 

 B 2:324 as Triticum strigosum Lessing. 

 B. SUBULATUS Griseb, in Ledeb Fl 

 Ross 4:358. = Melica acuminata fide B 

 2:305. 



B. TBINH E Desv in C. Gay, Fl Chil 6: 

 441 (1853). Chili. A 1:37 d. Ab 53, 

 Pasadena. SD, Colo, Ut, Baja. 

 Variety FAIiLIDIFLORTTS Desv. A 1: 

 347. Ab 54. 



A more robust and larger plant, 6-12 

 dm i, with a much elongated panicle 

 mostly 2-4 dm Ig; with branches mostly 

 6-12 at the lower whorls, weak and 

 spreading; Ivs broadly linear lanceolate, 

 smooth or somewhat sparsely pilose- 

 pubescent, as are also the sheaths. Type 

 from the Andes of southern Chili. 

 Chollas! 



