GRASS FAMILY 



229 



Weig. 1772; Bromtis virens Buckl. Proc. Acad. Phila. 1862: 98. 1863, not Nees 1829; Bromus hookerianus 

 Thurb. in Wilkes, U. S. Expl. Exped. 17: 493. 1874. A robust plant with large spreading panicle, the spike- 

 lets 3-4 cm. long 5-7 mm. wide, the lemmas scabrous. Washington to California and Idaho. Type locality: 

 Willamette River, Oregon. 



Bromus carinatus linearis Shear, U. S. Dept. Agr. Div. Agrost. Bull. 23: 61. /. 39. 1900. A very 

 narrow-leaved form, with narrow panicle. A depau|)erate form found only in a few localities in California 

 (Berkeley Hills, Davy; Mount Lycll, Hitchcock) and Oregon (Eight Dollar Mountain, Pif^ei-; Siskiyou, 

 Hitchcock). 



Browns maiginatiis, B. carinatus, and their varieties form a polymorphous series difficult to segregate into 

 definite nonienclatural groujis. 



8. Bromus inermis Leyss. 



Smooth Bronie. Hungarian Bronie. 

 Fig. 537. 



Bromus incnnis Leyss. Fl. Hal. 16. 1761. 



Perennial, with creeping rhizomes ; cuhns erect, 

 smooth, 50-100 cm. tall ; sheaths smooth ; ligule 

 1.5-2 mm. long; blades Hat, smooth or nearly so, 

 5-10 mm. wide; panicle oblong, somewhat spread- 

 ing, 10-20 cm. long ; spikelets narrow, 2-2.5 cm. 

 long, terete ; glumes smooth, the first 4-5 mm. long, 

 the second 6-8 mm. long; lemmas emarginate, 9-12 

 mm. long, glabrous, awnless or with a short awn 

 as much as 2 mm. long. 



Introduced from Europe and cultivated as a forage 

 grass. Occasionally escaped along roads and in waste 

 places, Washington to northern California and eastward in 

 the northern States. Jime-Ang. Type locality, European. 



9. Bromus erectus Huds. 

 English Brome-grass. Fig. 538. 



Bromus crcctus Huds. Fi. Angl. 39. 1762. 



Bromus inacounii Vasey, Bull. Torrey Club 15: 48. 1888. 



Perennial, cespitose ; culms erect, glalirous, 60-90 cm. 

 tall; sheaths sparsely pilose or glabrous; ligule about 

 1.5 mm. long; blades sparsely pubescent; panicle nar- 

 row, 10-20 cm. long, the branches ascending or erect ; 

 spikelets 5-10-flowered ; glumes acuminate, the first 6-8 

 mm., the second 8-10 mm. long ; lemmas glabrous or 

 evenly scabrous-pubescent over the liack, 10-12 mm. 

 long, the awn 5-6 mm. long. 



Introduced in a few localities in the eastern States. It has 

 been collected at Steptoe, Washington (C R. Vasey). Type 

 locality, European. 



10. Bromus suksdorfii Vasey. 

 Suksdorf's Brome-grass. Fig. 539. 



Bromus suksdorfii Vasey, Bot. Gaz. 10: 223. 188S. 



Culms 60-100 cm. tall; sheaths and blades sinooth, 

 scattered ; panicle narrow, erect, rather dense, 7-12 

 cm. long, the branches erect or ascending; spikelets 

 about 2.4 cm. long, longer than the pedicels; glumes 

 glabrous, the first 1-nerved, 8-10 mm. long, the second 

 3-nerved, 10-12 mm. long; lemmas 12-14 mm. long, 

 appressed-pubescent near the margin and on the lower 

 part of the midnerve. 



Rocky woods and slopes, in the Hudsonian Zone; Washington 

 to the southern Sierra Nevada. July-Aug. Type locality: Mount 



Adams, Washington. 



