NEW OR NOTEWORTHY GRASSES 
Stipa lepida Andersoni (Vasey). Stipa eminens Andersoni Vasey, 
Contr. U. S. Nat. Herb. 3: 54. 1892. 
This differs in being smaller, and in having narrower and fewer- 
flowered panicles and somewhat smaller spikelets. The type was 
collected by Anderson near Santa Cruz, California. The published 
type locality, "Lower California," is an error. 
MuHLENBERGiA TRIFIDA Hack. Repert. Nov. Sp. Fedde 8: 518. 1910. 
This is the common western grass hitherto known as M. gracilis, 
which name is a synonym of M. qiiadridentata (H. B. K.) Kunth. 
MuHLENBERGiA Emersleyi Vascy, Contr. U. S. Nat. Herb. 3: 66. 
1892. M. Vaseyana Scribn. Rep. Mo. Bot. Card. 10: 52. 1899. 
This species has been confused with M. distichophylla Presl which 
is confined to Mexico. This group of Muhlenbergia is more nearly 
related to Epicampes than to most of the other species of Muhlenbergia. 
Sporobolus contractus new name. Sporobolus strictus (Scribn.) Merr., 
U. S. Dept. Agr. Div. Agrost. Circ. 32: 6. 1901, not S. strictus 
Franch. Bull. Soc. Hist. Nat. Autun 8: 368. 1893. 
Sporobolus macrus (Trin.). Vilfa macra Trin. Mem. Acad. St. 
Petersb. VI. Sci. Nat. 4^: 79. 1840. 
This species, hitherto known only from the type specimen and 
unrecognized in our flora, is allied to Sporobolus Drummondii (Trin.) 
Vasey, but differs from all the species of this group in having creeping 
scaly rhizomes. The type of Vilfa macra has been examined at the 
herbarium of the St. Petersburg Academy of Sciences. The type 
locality as pubHshed and as given on the label is "Louisiana," without 
other data. The only other specimen known to us was collected in 
wet pine land near Biloxi, Mississippi, October 8, 1907, by Agnes 
Chase (no. 4341). 
Agrostis exigua Thurb. in S. Wats. Bot. Calif. 2: 275. 1880. 
This very rare species has been know^n for several years only from 
the single specimen in the Gray Herbarium collected by Bolander in 
the ''foothills of the Sierras." Specimens of this species have been 
recently sent in from Howell Mountain, Napa County, California, 
collected by Mr. Joseph P. Tracy (no. 1552). 
Agrostis exarata ampla (Hitchc). Agrostis ampla Hitchc. U. S. 
Dept. Agr. Bur. PI. Ind. Bull. 68: 38. 1905. 
Agrostis exarata microphylla (Steud.). Agrostis microphylla Steud. 
Syn. PI. Glum, i: 164. 1854. 
