. Bulletin. Gramineae -- United States; Forage plants -- United States. 57 p. A. Rydberg 2342); Montpelier (T. A. Williams 2558). Wjioming: Bear Tooth Mountains (W. H. Forwood); Bear Lodge Mountains (T. A. Williams 2619); Jacksons Lake (W. H. Forwood); Elk Mountain (A. Nelson 4098); Buffalo Fork (F. Tweedy 65); Rife's Ranch (A. Nelson 3759, 3827); Seminole Mountains (A. Nelson 4921); Sierra Madre Mountains (A. Nelson 4035). Montana: Lima (C. L. Shear 560^). Oregon: Powder River Mountains (C. V. Piper 2529). The above species is very closely related to B. marginatus, into which it passes and of


. Bulletin. Gramineae -- United States; Forage plants -- United States. 57 p. A. Rydberg 2342); Montpelier (T. A. Williams 2558). Wjioming: Bear Tooth Mountains (W. H. Forwood); Bear Lodge Mountains (T. A. Williams 2619); Jacksons Lake (W. H. Forwood); Elk Mountain (A. Nelson 4098); Buffalo Fork (F. Tweedy 65); Rife's Ranch (A. Nelson 3759, 3827); Seminole Mountains (A. Nelson 4921); Sierra Madre Mountains (A. Nelson 4035). Montana: Lima (C. L. Shear 560^). Oregon: Powder River Mountains (C. V. Piper 2529). The above species is very closely related to B. marginatus, into which it passes and of which it should perhaps be regarded as a variety. It differs chiefly from the typical form of B. niar- ginatus in being smooth- er throughout. 32a. BROMTJS POLY- ANTHUS PANICTJ- LATUS n. var. (Fig. 35.) A rather tall, leafy plant with a larger, laxer, more spreading j>anicle than the species and having the upper part somewhat nodding. The leaves are rather broader and the spike- lets slightly narrower, with the florets rather looser in flower and the awn sometimes reach- ing 7 mm. long. Type No. 333 Tracy, Earle, and Baker, collected in West Mancos Canyon, Colorado,altitndeabout 3,000 meters. Specimens examined.âCol- orado : West Mancos Canyon (Baker, Earle and Tracy 333); Trim- ble Springs (Baker, Earle & Tracy 4301); Parrott (Baker, Flarle & Tracy 4297); Buffalo Pass (Shear & Bessey 1493); Sheep Horn Di- Fig. S^.âBromvn alentensis: a, empty glumes with two florets; vide (Shear & Bessey ''â '^"^sal view of a flowering glume. 1552); La Veta (C. L. Shear 812). Utah: Gunnison (L. F. Ward 286). Arizona: Straw1)erry Creek (D. T. McDougal 707). This plant bears the same relation to the species that B. ;i latior does to its species. Its distribution is more southern in general and most frequent in lower altitudes. 33. BROMUS ALEUTENSIS Trin. Griseb. in Ledeb. Flor. Ross. 4 : 361. 1853. (Fig. 35.) A rather tall, stout perennial, with a lax, su


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