CATALOGUE. 17 



linear, crowded at the base ; those of the stem scattered, sessile ; silique linear, 

 flat, nearly straight, pendulous, acute ; stigma sessile ; seed broadly winged. 

 — The specimens differ from Nuttall's in the erect or spreading, not pen- 

 dulous siliques, in the more narrowly margined and less flattened seeds, and 

 in the rather broader leaves ; but it seems best to refer them here, as the 

 following variety with both ascending and pendulous pods, a widely winged 

 seed, and much broader leaves, would indicate that the differences were 

 within specific limits. The stems are less than 6' high, numerous from a 

 many-branched woody base ; flowers few, pale purple ; pod 1 J' long, about 

 1" broad. East Humboldt Mountains, Nevada; 8-10,000 feet; July, Au- 

 gust. (70.) • 



Var. LATIFOLIA. As described under the last. Clover Mountains, Nevada, 

 and Uinta Mountains, Utah ; 12,000 feet altitude. The Uinta specimen, 

 but for the seeds in the young pod being strictly in one row, would be placed 

 with the alpine A. Drummondii from the same locality. (71.) 



Aeabis longieosteis. Annual, glabrous, glaucous, diffusely branched; 

 radical leaves ovate-spatulate, cauline ones linear-lanceolate, narrowing to 

 the base, entire or sparingly toothed ; calyx of the small loosely racemed 

 reflexed flowers a little shorter than the corolla ; siliques linear, short- 

 pedicelled, reflexed, beaked with the. long narrow style; seeds in one series, 

 rather narrowly margined. — Stem 1-1J° high, much branched ; branches 

 virgate and somewhat naked ; flowers 1 J" long, light pink, calyx purplish ; 

 pods lJ-2' long, less than a line broad, the narrow beak J' long. Grrowing 

 in alkaline soil at the Steamboat Springs near Washoe City, about Humboldt 

 Lake, Nevada, and on Stansbury Island, in Salt Lake ; 4,500 feet altitude ; 

 May, June. Plate I. Fig. 1. A plant of the natural size, but under the 

 average of the species. Fig. 2. A flower ; enlarged four diameters. Fig. 3. 

 A pod ; natural size. Fig. 4. A seed, showing the embryo ; enlarged four 

 diameters. (72.) 



Aeabis peefoliata. Lam. {Turritis glabra, L. T. macrocarpa, Nutt.) 

 From the Northern States to the Arctic Circle, and west to the Pacific and 

 Northern California ; also collected by Fendler in New Mexico. Found in 

 the "West Humboldt Mountains, Nevada, and in the Wahsatch ; 5-6,000 feet 

 altitude ; May, June. (73.) 



Aeabis DeummoNdii, Gray. A very variable species ; stem either strict 

 or slender and flexuous; glabrous, with a slight ciliation upon the petiole of the 

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