PAMMEL NOTES ON GRASSES OF NEBRASKA, ETC. 241 



and loosely flowered, simple panicles 18-25 cm. long. Ligule hyaline, scar- 

 ious, more or less erose, 3-3 mm. long ; leaf blade 10-30 cm. long, 5-10 mm. 

 wide. Panicle-branches erect or ascending, flexuous, scabrous. Spikelets 

 3-6 flowered, lanceolate or narrowly oblong, 12-18 mm. long ; empty glumes 

 unequal, oblong, lanceolate, obtuse or subacute, the first 6 mm. long, 3- 

 nerved below ; the second 8 mm. long and 5-nerved, with broad hyaline 

 margins, scabrous on the nerves. The first flowering g-io mm. long, g- 

 nerved, oblong, lanceolate, acuminate, broadly scarious margined above ; 

 apex variable, acute, subacute, or occasionally 2-toothed, scabrous on the 

 back, specially on the nerves, with a few flexuous hairs near the margins 

 towards the base. Palea much shorter than the glume, more or less arcu- 

 ate, 9-7 mm. long, densely ciliate, fringed along the nerves, except towards 

 the base, where they are smooth, and punctate scabrous between them. 



Geranium Park, Wyoming, altitude 7,500. No. 159. L. H. Pammel, July 

 I, 1897. Named in honor of the collector. 



This species is apparently intermediate between Melica brotnotdes and M. 

 subitlata. The flowering glumes are much broader, less narrowly acumin- 

 ate, and in general larger than in Melica siibulata. The inflorescence and 

 general aspect of the panicle and spikelets resemble those of Melica bro- 

 moides, but the flowering glumes are longer, more acuminate pointed and the 

 internodes of the rachilla are shorter, the lowest in Melica pa//imellii being 

 about 2 mm. long. It is further distinguished by the presence of a few hairs 

 near the margin of the flowering glumes. 



Distichlis spicata Greene. Grand Island, altitude 1,872 ; alkaline flats. 

 Platte River bottoms. No. 98. Broken Bow, altitude 2,478 ; alkaline flats. 

 No. TJ. New Castle, altitude 4,019. No. 76. Sheridan, altitude 3,732 ; al- 

 kaline flats of Big and Little Goose Rivers. 



Poa arctica R. Br. Rapid Creek Park, Sheridan County, altitude 7,500, 

 and in Engelmann Spruce swamp. A beautiful and delicate grass. No. 138. 



P. Buckleyana Nash. Rapid Creek Park, Sheridan County, altitude 7,500. 

 Open places in parks, 'lot common. No. 118. New Castle, altitude 4,019. 

 Similar situations. No. 133. Dome Lake, Sheridan County, altitude 9,200. 

 Moraines, dry places. No. 134. 



P. compressa L. Grand Island, altitude 1,872. Introduced in streets, and 

 flood plains of Platte River. No. 115. Rapid Creek Park, Sheridan County, 

 altitude 7,500. This large open park is frequently used as a camping 

 ground. The species was undoubtedly introduced. No. 120. 



P. Fendleriana Steud. Dome Lake, Sheridan County, altitude 10,000. 

 Near timber line. In open spruce woods. No. 129. 



P. laevigata Scribner. Sheridan, altitude %iy2: Flood plains of Big and 

 Little Goose, along irrigation ditches. No. 119. 



P. leptocoma Trin. Rapid Creek Park, Sheridan County, altitude 7,500. 

 A delicate grass occurring in cold bogs where the Engelmann Spruce 

 grows. No. 128. 



P. Incidn \'asey. Spring above Big Horn, Sheridan County. Dome Lake, 



