Catalogue, 163 



glabrous, or with a few scattered hairs ; pappus copious, white, of unequal 

 scabrous capillary bristles. — Colorado, (Parry, Hall & Harbour, 268 Vasey.) 

 Parley's Park in the "Wahsatch, and in Bear River Canon, Uinta Mountains; 

 6-10,000 feet altitude ; July, August. (580.) 



Aplopappus Nuttallii, T. & Gr. Torrey, Sitgreave's Hep., p. 162, #.21. 

 Canescent with a fine pubescence; stems numerous, a span high from a 

 branching woody base, leafy ; leaves obovate-cuneate, about 1' long, 2" wide, 

 pinnately toothed, the teeth elegantly bristle-tipped ; heads few, in terminal 

 corymbs ; involucres campanulate, 4-6" broad ; the scales imbricated in 

 several rows, oblong or linear, rigidly chartaceous with scarious margins, 

 the greenish tips abruptly contracted and spreading; rays none; disk-flowers 

 about 25 ; styles with very hispid triangular-lanceolate appendages, scarcely 

 longer than the stigmatic portion ; achenia turbinate, silky- villous ; pappus 

 white, of copious very unequal scabrous rigid bristles. — Saskatchewan to 

 Oregon and Idaho, and southward to New Mexico. Wahsatch Mountains, 

 in Weber Valley ; 6,000 feet elevation ; July. (581.) 



Aplopappus sph^eocephalus, Harv. & Gray. PL Fendl.,p. 76. Pac. 

 R. R. Surv., 7. 12, t. 6. Shrubby, glabrous, 1-2° high; branchlets slightly 

 wing-angled ; leaves alternate, sessile, 6-9" long, narrowly linear-spatulate, 

 1-nerved, entire, mucronulate ; heads terminal, solitary or in simple corymbs, 

 large, 5-9" wide ; involucre hemispherical ; the obtuse scales imbricated in 

 several rows, their margins' scarious and lacerate-ciliate ; flowers 30-40, all 

 tubular ; achenia top-shaped, densely villous-lanate ; pappus short, of 20 or 

 more bristles, spatulate-clavellate towards the tip, plumulose below, a few 

 shorter subulate ones intermixed. — A very interesting plant, for which a 

 separate sub -genus, Acamptopappus, was provided, {PI. Fendl., I. c. ;) but the 

 pappus is so very peculiar that it might well be made the type of a distinct 

 genus. California, (Coulter ;) San Felipe, New Mexico, (Park's Expl. ;) St. 

 Greorge, Southern Utah, (Dr. E. Palmer, 1870.) 



Geindelia^ squaeeosa, Dunal. Glabrous and viscidly resinous ; stems 

 herbaceous from a perennial caudex, 12-20' high, corymbosely branched 



• GEINDELIA, Willb. Heads many-flowered ; the ray-flowers generally present, pistillate, the 

 ligule elongated ; disk-flowers perfect, the corolla tnhulaurfunnel-shaped, 5-toothed. Involucre subglo- 

 bose or hemispherical, the scales imbricated in many rows, often with squarrose tips. Eeceptacle naked, 

 flat, foveolate. Style with lanceolate hispid appendages as long as the stigmatic portion. Acheuinra 

 smooth, oblong or ovate, somewhat angled. Pappus of 2-8 smooth rigid deciduous awns, shorter than 

 the disk-corollas. — Biennial (?,) perennial or suffruticose, often resiniferous, Mexican and North Ameri-- 

 can plants. Leaves entire or serrate, often punctate, the cauline ones sessile. Heads corymbed at the 

 ends of the branches, or solitary, mostly rather large. 



