NEW OR NOTEWORTHY SPECIES. 241 
intervening lines and marginally faintly scabrous-denticu- 
late: slender pedicels about 1 to 14 inches long, their lance- 
olate and somewhat green-herbaceous bracts not half as 
long, perianth-segments with round-ovate obtuse limb and 
broad very short claw, the whole greenish-white except as 
to the white margin. 
Banks of streams in the mountains of eastern Oregon, at 
an altitude of 4,000 to 7,000 feet, collected by W. C. Cusick, 
and distributed (n. 2,060 with me) as Z. elegans, though of 
wholly different aspect, and with remarkably broad as well 
as elongated and thin foliage of a rather bright green 
rather than glaucescent hue. 
* ZYGADENUS GRACILENTUS. Slender, scarcely glaucescent, 
a foot high or more, the leaves long, oblanceolate-linear, 
abruptly callous-pointed, marked by about 5 to 7 prominent 
nerves, the intervening lines 2 or 3 between each pair: 
raceme narrow, 10 to 15-flowered, the slender suberect 
pedicels 3 to # inch long, their bracts about half as long, 
subulate-lanceolate, scarious: segments of the greenish 
perianth spatulate-oblong in the pistillate plant, broader 
and very obtuse or commonly retuse in the staminate, only 
the inner 3 at all unguiculate, the gland small and not 
well defined. 
Slopes of the Sierra Madre, Chihuahua, Mexico, 1 Oct., 
1887, C. G. Pringle (n. 1383 in my set), labelled Z. elegans, 
but of a perfectly distinct species, with oblanceolate foliage, 
the plants strictly dioicous as far as seen. 
