43 
more or less spreading ; spikelets lanceolate and acuminate when 
closed, 2 mm. long, generally about equaling the pedicels, which 
are decidedly thickened at the apex and usually more or less 
spreading; empty scales acuminate, purplish, scabrous on the 
keels, the first longer than the second; flowering scale about 
three-fifths as long as the first scale; palet wanting. 
Collected by A. A. and E. Gertrude Heller, at Forest, Nez 
Perces County, Idaho, on July 16, 1896, at an altitude of 3,500 
feet, no. 3431. A very delicate and beautiful member of the 
genus and perfectly distinct from any species of that region with 
which I am acquainted. 
DaNTHONIA GLABRA n. sp. 
——— 
Whole plant, with the few exceptions noted below, glabrous. 
Culms 4-7 dm. tall, erect, simple, striate, slightly rough just below. 
the panicle, and puberulent for some distance below the brown 
nodes ; sheaths smooth, only those at the base of the culm exceed- 
ing the internodes, the remainder much shorter than their inter- 
nodes ; ligule densely ciliate with silky hairs 1-2 mm. long; leaves 
smooth excepting at the apex, I.5-3 mm. wide, erect, those on the 
Sterile shoots 1.5 dm. long or more,.those on the culm 5-10 cm. 
long, the basal ones shorter than the rest; panicle 5-8 cm. long, 
its axis, together with the erect or occasionally spreading branches, 
hispidulous; spikelets, including awns, 1.7-2 cm. long, 5—-8-flow- 
ered, on hispidulous appressed pedicels, 2.5-7 mm. long; empty 
Scales acuminate, the first 3-nerved,’I.3-1.7 cm. long, equalling or 
slightly shorter than the 5-nerved second; flowering scales 5-6 
mm. long to base of the teeth, pubescent on the lower half of the 
Margins, and occasionally sparingly so on the mid-nerve near the 
base, with erect silky hairs about 2 mm. long, teeth including awns 
1.5~3 mm. long, one of the awns usually shorter than the other, 
the central awn 9-12 mm. long, more or less spreading, yellowish 
Town at the base, strongly hispidulous toward the green apex, 
about once twisted ; palet about reaching to the base of the awn or 
nearly so, strongly ciliate on the two nerves. os 
Type specimens collected by Dr. John K. Small, on Little 
Stone Mountain, DeKalb County, Georgia, on July 5, 1895. In 
this the flowering scales are entirely glabrous on the. back. In 
another form from New Jersey the flowering scales are sparingly 
Pilose on the back near the base. This latter form was secured 
by Dr. John Torrey, at Quaker Bridge, in May, 1830; also bya 
Party of the Torrey Botanical Club at Forked river, on May 30, 
: 1896. wae eee s ¢ a reer 
