Type specimen from California without special locality or collectors named. A 

 striking species, remarkable for the short, filifonn leaves and rather few- 

 flowered capillary panicles. The spikelets in the specimen in hand are 

 purplish, as is the culm, and the plants appear to be staminate. 



9. POA LIMOSA Scribn. & Williams, sp. nov. 



An erect, robust, glaucous perennial, 7 or 8 dm. high, from a rhizomatous base, 

 with broad, flat leaves and narrow, closely flowered panicle 1-U dm. long. 

 Culm smooth. Culm-leaves 2 or 3, 4-10 cm. long, those of the sterile shoots 

 10 to 20 cm. or more long, all flat (rarely conduplicate), smooth except on 

 the margins, and abruptly pointed : sheaths smooth, conspicuously striate, 

 all except the lowermost much shorter than the internodes ; ligule about 

 5 mm. long, acute or acuminate, often fimbriate, rough-hispid on the back. 

 Panicle-branches scabrous, erect (or sometimes spreading during anthesis), 

 the lower ones about 4 or '•> cm. in length. Spikelets compressed, lanceolate, 

 4-r)-flowered, about G mm. long ; empty glumes unequal, smooth or slightly 

 rough on the back, the lower lanceolate, acute, indistinctly 3-nerved, a little 

 less than 3 mm. long, the upper ovate-lanceolate, rather obtuse or subacute, 

 strongly 3-nerved, .slightly exceeding 3 mm. in length ; flowering glume con- 

 spicuously 5-nerved, oblong-ovate, obtuse, minutely scabrous on the back 

 and rough-hispid on the nerves, ?A mm. long; palet about equaling the 

 flowering glume, sometimes slightly exceeding it, ciliate on the keels, biden- 

 tate at the apex. 



Type specimen collected by H. N. Bolander, at Mono Lake, California, evidently 

 growning in wet boggy soil, but no notes as to habitat accompany the speci- 

 men. Specimens collected by Bolander, No. 6114, and with no locality other 

 than "California," belong to this species. 



The species is related to Poa nevadensis Vasey and is apparently confined to the 

 Pacific Slope. 



10. POA E PI LIS Scribn., sp. nov. 



A rather slender, erect, closely caespitose perennial, 4-6 dm. high, with numer- 

 ous basal leaves from intravaginal shoots, and contracted, closely flowered, 

 green, bronze-brown or purplish, usually somewhat nodding panicles about 

 5 cm. long. Culm smooth, composed of about three internodes, the low- 

 est short, the other two long and much exceeding their sheaths. Leaves 

 smooth, slender, acute, flat, or convolute when dry, those of the sterile shoots 

 much the longest, often 2 dm. or more in length. Sheaths smooth, striate. 

 Ligules of the cauline leaves acute, about 3 mm. long, those of the sterile 

 shoots obtuse, often reduced to a narrow band. Panicle branches erect or 

 ascending, smooth, the longer ones more or less flexuous, simple and flower- 

 bearing near the top or sometimes branched and flower-bearing nearly to 

 the base, seldom over 3 cm. long. Spikelets somewhat compressed, ovate- 

 lanceolate, 3-4-flowered. about 5 mm. long. Empty glumes smooth, unequal, 

 the lower lanceolate or ovate-lanceolate, acute or acimiinate, 1 -nerved, 2^ mm. 

 long, the upper broadly ovate, acute, 3-nerved, about 3 mm. long ; flowering 

 glumes 5- nerved, rough-hispid on the back, the roughness most conspicu- 

 ous on the keel and marginal nerves, oblong-elliptical, obtuse, about 4 mm. 

 long ; palet a little shorter than the flowering glume, cilate on the keels, 

 apex bidendate. Grain pale, ellipsoid, rather acute at both ends, with a 

 conspicuous white tubercle at the apex. "3 



Type specimen No, 14r)7, Shear and Bessey, open places, thin, moist timberland, ' 

 Buffalo Pass, Colorado, August 13, 1898. Altitude, 3,000 to 3,oU(j meters. 



