CATALOGUE. 197 



eoles 4-5 ; proper involucral scales 4-7" long, lanceolate-acuminate, about 8, 

 in two rows ; achenia roughish-pubescent, 2-3" long, scarcely rostrate ; pap- 

 pus of 12-20 elegantly plumose setae, rising from an entire oblong scarious 

 base 4-5 times shorter than the plume. — Washington Territory and Oregon 

 to California. Havallah and East Humboldt Mountains, Nevada, and near 

 Salt Lake City and in the Wahsatch, usually along stream banks ; 4,500-9,000 

 feet elevation ; May-September. (694.) 



Var. LATiFOLiA has oblong-spatulate entire leaves, 2-4' long, 6-9" wide. 

 — With the other form. East Humboldt Mountains and the Wahsatch. (695.) 



Calais majoe. Gray, /. c. Glabrous ; stem stouter, 1-2° high ; petioles 

 with a dilated base ; leaves 6-8' long, 4-9" wide, lanceolate-spatulate, entire 

 or laciniated ; involucre puberulent or glabrate, campanulate, many-flowered, 

 bractlets 8 or 9, proper scales 10-13, acuminate ; achenia and pappus nearly 

 as in the last, of which it is probably only a larger form. — Oregon. Antelope 

 Island, and near Salt Lake City, in meadows; 4,300 feet altitude; May, 

 June. (696.) 



Anisocoma^ acaulis. Gray. Boston Jour. Nat. Hist., 5. Ill, t. 13. 

 California, near Fort Mohave, (Dr. Cooper !) and near Fort Tejon, (Dr. Van 

 Horn !) Carson City, Nevada, Anderson !) Foot-hills near Carson City, 

 and near Steamboat-Springs, Washoe Valley, Nevada; 4,500 feet elevation; 

 April, May. Dr. Gray has described the inner pappus as consisting of 5 longer 

 and 5 alternate shorter setee, all plumose above the middle, but the number 

 of setae seems to be variable, and the smallest ones, while scarcely at all 

 plumose, are irregularly placed among the rest. (697.) 



Stephanomeeia^ mince, Nutt., (including 8. runcinata, Nutt.) Perennial, 



' ANISOCOMA, Gray, I. o. Heads many-flowered ; the flowers all ligulate. Involucre sub-cylin- 

 drical ; the scales 18-24, imbricated, purplish with broad scarious margins, the outer ones roundish or 

 OTate, very short, inner ones linear-oblong. Eeoeptacle flat, bearing a few very slender chafify scales 

 among the outer florets. Achonia slenderly obconio, 10-12-striate, pilose along the strise, crowned with 

 a persistent wavy-margined cup-like outer pappus, and bearing inside of this 10-15 deciduous setse, some 

 of them short and naked, and the other two-thirds as long as the corolla and exceedingly plumose nearly 

 to the base. — An annual herb ; the leaves aU radical, 1-2' long, at first toraentose, soon glabrous, pinnately 

 lobed ; the lobes short and somewhat denticulate ; scapes simple, 2-6' high, naked, monoccphalous ; 

 heads an inch long ; flowers yellow ; pappus pure white. 



^ STEPHANOMEEIA, Nutt. (Including Hemvptilium, Gray.) Heads 3-12-flowered ; the flowers 

 all ligulate. Involucre cylindrical, calyculate ; bractlets few, very small ; proper scales 3-7, subequal, 

 but in two species more numerous, unequal and imbricated. Receptacle naked, slightly honey- 

 combed. Achenia oblong-linear or clavate-oblong, -with 5 prominent angles or ribs, the intercostal 

 spaces either plane or tuberculate-rugose, or occupied by additional less elevated ridges. Pappus simple, 

 of 5-25 plumose filiform setae or bristles, slightly dilated at the base.— Annual or perennial herbs, much 

 branched, natives of Western North America from the great plains to the Pacific. Lower leaves linear, 

 often runcinately toothed ; the upper ones gradually reduced to small subulate bracts. Heads small ; 

 flowers rose-color. 



