Seventeenth Annual Meeting. 117 



17 and 41. Sporobolus cryptandrus, Gray's Man. 610. (Agrostis and Vilfa, Torr.) 

 No. 349 of my Montana collection. 



42 and 54. Agrostis alba, L., Gray's Man. 612. Agrostis alba, var. vulgaris, Tlmrber 

 in Bot. Calif. II, 272. (A. vulgaris, With.) 



50. Agrostis scabra, Willd., Gray's Man. 611. 



62. Cinna arundinacea, L., Nutt. Fl. Ark., p. 143; Gray's Man. 613. The specimens 

 are slender, and have almost the habit of C. pendula, Trim, but they are at once dis- 

 tinguished from that species by the unequal outer glumes. 



25. Chloris verticillata, Nutt. Fl. Ark. 150, and Trans. Am. Philos. Soc. vol. 5 (N. S.) 

 143. "Spiels plurimis verticillatis, radiatis, filiformibus; calicibus acuminatis bifloris ; 

 llnsculis longe aristatis; gluma exteriore subbarbata; caule compresso. Hub. — On the 

 sandy banks of the Arkansas, near Fort Smith, rare. Flowering in June. 06s. — Peren- 

 nial. Culm compressed, branched from the base about 12 inches high; leaves pale green, 

 narrowish, and flat; sheaths carinately compressed; stipules obsolete, hairy; spikes 

 mostly verticillated in two series, the first aggregation consisting of from 7-9 spikes; 

 spikes filiform and stellately spreading, pilose at the base, about 6 inches long; flowers 

 (xpikelets) unilateral, alternating in two rows; calyx (empty glumes) acuminate, two-flowered, 

 one of the flowers perfect, the other neuter, the dorsal valves (flowering glumes or lower palets) 

 of both gibbous, obtuse and awned, the awn more than twice the length of the flower, 

 that of the hemaphrodite bearded; seed triangular, smooth and even ; anthers 3; stigmas 

 2, brown. There are few grasses in America more curious and elegant. Its aspect is 

 that of a tropical species." ( Nuttall.) 



27. Schedonnardus Texanus, Steudel, Syn. Gram. 146, (1855.) Upham, Flora, Minn. 

 169. (Lepturus paniculatus, Nutt., Gen. 1. 81, 1818. Flora Ark. 152; Gray's Man. 

 637.) This grass belongs to the tribe Chlorides, and is allied to Gymnopogon, while 

 the true Lepturi, of which we have no North-American species, excepting the spar- 

 ingly introduced L. incurvatus and L. filiformis, belong in Hordea?, between Agropyrum 

 and Hordeum. Lepturus Bolanderi, Thurber, described by Dr. A. Gray in Proc. Am. 

 Acad. Arts and Sci., p. 401, 1867, and by Prof. Thurber in Bot. Calif. II, 322, ( Bolander, 

 No. 4669; collected also in California by E. L. Greene, and in southern Oregon by 

 Howell,) cannot be referred to either of the genera here named as they are character- 

 ized, nor is it referable to any of the allied genera in either groups. I am of the opinion 

 that it constitutes an independent genus. 



26 and 38. Bouteloua oligostachya, Torr., Gray's Man. 621. (Atheropogon oligosta- 

 chya, Nutt. Gen. 1. 78, Fl. Ark. 150.) 



37. Bouteloua hirsuta, Lag., Gray's Man. 621. 



12. Bouteloua curtipendula, Torr. in Emory's Rept. 1848, p. 153. (Chloris curti- 

 pendula, Mx., Fl. 1. 59, 1803, Bouteloua racemosa, Lagasca, Varied, de Cienc, 1805, No. 

 22, 141.) The specimens belong to the var. aristosa, Gray. 



18. Triodia seslerioides, Bentham, (Poa seslerioides, Mx., Fl. 1. 68, 1803. Tricuspis 

 seslerioides, Torr. ; Gray's Man. 621. Triodia cuprea, Jacq., Eclog. Gram. 2, 21, t. 16, 

 1815. Uralepsis cuprea, Kth. Gram. 1. 108, 313, t. 68.) 



28. Munroa squarrosa, Torr., Pacific R. R. Rep. IV, 158. (Crypsis squarrosa, Nutt., 

 < ren. 1. !'.».) In 1883, I found this grass growing near Fort Benton, Montana, the most 

 northern point yet reported for its distribution. 



Kceleria cristata, Pers. ; Gray's Man. 625. This is a very common grass in all the re- 

 gion west of the Mississippi and in Montana, where I have heard it called "June grass." 

 It often covers the extensive bench-lands in equal abundance with its associate, Poa ten- 

 id folia. The species, as we have it, presents a variety of forms, some of which may prove 

 good species. Upon the dry bench-lands, where the grass stands thinly, the radical 

 leaves or those of the sterile shoots are short ( 2-3 inches) and strongly involute. In 



