Graminefe. 
405 
631. Calamagrostis. Smallreed. Ill, 33, 49, 50. 
1. Glumellas membraneous, white-translucent. Axis of the 
spikelet not prolonged above the fl. Awns straight, 
rarely 0 ........ 2 
— Glumellas of a firmer consistency, white-translucent 
only at the edges. Axis of the spikelet prolonged above 
the fl. in the form of a pedicel (rudiment of a second 
fl.). Deyeuxia. ........ 6* 
2. Hairs not numerous, about ] /3 the length of the glu¬ 
mellas. Stem 40—60 cm. PI. more delicate than the 
following species, with the habit of an Agrostis, whence 
it is named by Gaud.: Agrostis pilosa. Spikelets with 
or without awns.—Alp. and subalp. 7 tenella Host. 2418. 
— Hairs numerous, as long as, or longer than, the glu¬ 
mellas. Stem 60—150 cm . .... 3 
3. Glumes narrow-lanceolate, acuminate. (Panicle loose, 
the branches fairly distributed. Stem fairly smooth below 
the panicle) ........ 4i 
— Glumes linear-subulate, narrowed to a laterally com¬ 
pressed point ........ 5 
4. Awn terminal, inserted in the cleft of the glumella, 
very short and scarcely exceeding the cleft. C. Gaudi- 
niana Itchb.—Swamps, rather rare (wanting in G. S.). 7 
lanceolata Roth. 2419. 
— Awn inserted below the middle of the back, as long as, 
or rather shorter than, the glumella.—Alp. and subalp., 
not common. 1 ... . Halleriana Dec. 2420. 
5. Panicle loose, rather drooping, with equally distributed 
spikelets. Awn terminal.—Varied: Stem very rough 
below the panicle, or (b. laxa Host.) fairly smooth, the 
spikelets, at the same time, more finely and longer pedi- 
celled.—River-shores; here and there (wanting in S). 7 
litorea Dec. 2421. 
— Panicle stiff, erect, lobed on account of the clustered 
spikelets. Awn inserted at the middle of the back or 
lower.—Water-side, woods; distrib. 7 Epigeios Roth. 2422. 
6 (1). Awn straight. Panicle narrow, stiff, brownish violet. 
C. stricta Nutt.—Peat-mosses; Pontarlier (French Jura) 
and Radolfzell (lake of Constance). 7 * neglecta Fr. 2423. 
— Awn notched ........ 7 
7. Hairs as long or almost as long as the glumellas. Awns 
gen. slightly exceeding (by 3 mm at most) the glumes, 
prominent or enclosed. C. montana Dec.—b. acutiflora 
Dec. PI. taller, glumes narrower, hairs shorter.—Woods; 
distrib. 7.varia Link. 2424. 
Hairs only x /3 — l U the length of the glumellas. Awns 
gen. much longer than the glumes. C. sylvatica Dec.— 
