41 



appearance in different situations. Its time of development and maturity varies 

 ••with the cbaracter and moisture of tlie soil and tbo altitude, so tliat in different 

 localities it will be found in excellent condition tbroughont tbe season. Green 

 Top, June 29 (3244); Nortb Fork Vermilion Creek, .July 20 (3780); Head of Ver- 

 milion Creek, July 20 (3798) ; Battle Lake, August 17 (4043). 

 Poa epilis Scribn.— Very slender stems, 12 to 18 incbes high, witb sbort, rather 

 broad beads; root leaves small and stem nearly naked. It was met witb only 

 once at an almost alpine beigbt, growing as scattering specimens among the 

 broken, granite rocks. Battle Lake Mountain, August 17 (4067). 



Fig. 13. — Bulbous Mi'lii-grass {Melica bullosa) : a, 

 spikelet; b, flowering glume; c, floret; d, c.aryop- 

 sis; e, terminal rudinieutary floret. 



Fig. 14. — Bencli-land Spear-grass (Poa 

 arida) -. a, spikelet; 6, flowering glume; 

 c, floret. 



Poa fendleriana Vasey (Fendler's Spear-grass). — A small bimch-grass, 10 to 15 

 incbes high, with numerous leaves and ample panicles. It occurs on rocky slopes 

 in tbe foothills in the western part of the State; seemingly neither frequent nor 

 abundant, but undoubtedly an excellent pasture grass. Evanstou, May 29 (2970, 

 2986, and 2998). 



Poa flava L. (False Redtop). — Tall and slender, 2 to 3 feet high, with long, 

 spreading panicles. In some localities a conspicuous grass in the wet draws on 

 bottom lauds at least, so in inclosures where it is allowed to head out. In open 

 ground and in pastures, stock graze it down closely, indicating that it is among 



