549 
Aiton, Idaho, June and July, 1892, No. 25. 
Ballard, Swan Lake, Minn., June, 1892. 
Brewer & Chickering, Geneva, N. Y., June 19, 1858. 
Dr. Geo. Vasey recognized this plant as distinct from Glyceria 
Jluitans, giving it the varietal name of angustata, but I cannot find 
that it was ever published. The G. angustata T. Fries would, 
however, invalidate its use in this connection. 
PANICULARIA BRACHYPHYLLA nN. sp. 
Whole plant, except the flowering scales and a slight roughness 
on the branches of the panicle just below each spikelet, smooth 
and glabrous. Culms simple, from a decumbent and creeping 
base, erect, slender, 6-9 dm. tall; sheaths usually longer than the 
internodes, closed for nearly the entire length, striate, the upper- 
most one elongated, somewhat keeled toward the summit, loosely 
embracing the culm, and enclosing the base of the panicle; ligule 
6-9 mm. long, lacerated at the apex; leaves linear, acuminate at 
the apex, 6-13 cm. long, 4-5 mm. wide, inclined to become con- 
duplicate, especially when dry ; panicle narrow and slender, the ex- 
serted portion 3-4 dm. long, the lower internodes of the rachis 5-7 
cm. long, gradually decreasing in length to the summit, where they 
are I-2 cm. in length, the branches appressed, or nearly so, the 
lower ones in 2’s or 3’s, one of which is 6-11 cm. long and bears 
2-3 spikelets, the remaining one or two being much shorter and 
bearing a single spikelet; spikelets 2.2-3 cm. long, compressed- 
cylindric, 7-12-(usually 8-10) flowered, on pedicels 1-2 mm. long; 
empty scales of the spikelet 1-nerved, acutish, with a broad white 
margin, the first scale about one-half as long as the second, which 
is 5-6 mm. in length, the flowering scales hispidulous, 7-nerved, the 
lower ones a little exceeding twice the length of the internodes of 
the rachilla, about 5.5 mm. long, 2.5 mm. wide when spread out, 
elliptic, the obtuse, not truncate, apex somewhat obscurely and ir- 
regularly few-toothed; palets about 6 mm long, alittle exceeding 
the flowering scales, acuminate, the margins infolded, the apex 
shortly 2-toothed, 2-nerved, the nerves wing-keeled, the wing ser- 
rulate and about .3 mm. wide in the broadest part ; anthers purple, 
1.5-1.7 mm. long. 
Growing in water in large masses in an open swamp near the 
N. Y. & Harlem R.R., just north of the northern line of the 
grounds of the New York Botanical Garden, in company with 
P. fluitans, from which it is markedly different, the shorter and 
more slender culms, the shorter leaves, and the much narrower 
panicle readily distinguishing it; in addition to these differences, 
the flowering scales in P. fluitans are shorter (about 4 mm. long), — 
