1886. ] BOTANICAL GAZETTE. 175 
Montana collection. Found in open woods, Elk Creek, near Ft. 
Logan, alt. 5500 ft., July 25.) 
21. (253, 582, 583.) Deyvruxta NE@LEcTA Kth. Gram. I. 
76, Enum. Pl. I. 242. Calamagrostis stricta Beauv. (1812), 
Trin. Gram. Uni-Sesquifl. 226 ; Gray, Proc. Am. Acad. LV. 78; 
Thurb. in S. Wats. Bot. Calif. [1.282 Deyeuwxia stricta Coulter, 
Man. 414 (not HBK.) 
Dry meadows and slopes between 7000 and 9000 ft. altitude. 
So far as observed this species affects drier situations than the 
other species of the genus here name 
This species is distinguished by its rather rigid, erect and few 
(2, rarely 3) jointed stems, narrow rigid and usually erect leaves, 
strict and densely flowered panicle—often spike-like above, lobed 
and more or less interrupted below—the spikelets being crowded 
on short, usually appressed compound branches. The leaves of 
the sterile shoots are always very narrow and attain to one-half 
or two-thirds the height of the culm’ (their length is in marked 
contrast with the rather short leaves of the latter). No. 582 isa 
slender form (that may be designated as var. gracilis), 30-40 cm. 
high, with 3-4 stem leaves, the sheaths of which equal or much 
exceed the joints, and a narrow but rather loosely flowered pan- 
icle. The outer glumes are narrower and more pointed, less firm 
in texture and not so rough as in numbers 253 and 583. It is 
certainly of the same species, however. 
me of our specimens differ from the European plant in the 
more scabrous and firmer glumes, a difference that is by no means 
constant. Calamagrostis confinis Nutt. is too near this species to 
be kept distinct, and the same is probably true of Calamagrostis 
crassiglumis Thurb., which represents an opposed extreme in de- 
velopment. None of our forms of Deyeuxia neglecta exactly 
correspond with Deyeuxia Lapponica Kunth, from Europe. The 
differences, however, are slight and the two were united by Gen. 
Munro, the first name being made a synonym of the latter. 
22. (616.) DrescHampsraA C&sPiTosa Beauv., Agrost. 91, t. 18, 
f.3; Coulter's Manual, p.414. Aira cespitosa L., Gray’s Manual, 
p. 641. Dry and moist meadows and slopes, from 7000-9000 ft. 
altitude. : 
Although D. cespitosa Beauv. and D. jleruosa Griseb. are at 
Once recognized by one familiar with the two, the former is so 
variable, particularly in the Rocky Mountain forms, that it is 
not easy to find a constant character, which can e expressed, to 
distinguish them. It may be said, however, that in D. flexuosa 
the outer glumes are only 1-nerved (rarely the 2d is obscurely 
3-nerved at the base) and much less firm in texture than the 
flowering ones. In D. ceespitosa the 2d (and sometimes also the 
