202 BOTAI^TY, 



pappus of iive strong awns and about ten very short intermediate teeth ; 

 inner pappus of about fifteen capillary bristles, deciduous in a ring. — In this 

 and other allied species of Malacothrix the stronger bristles of the pappus 

 certainly belong to the cup-like crown, and not to the deciduous pappus, as 

 was supposed by Drs. Torrey and Grray. (See Stansh. Rep. 392 ; PI. Fendl. 

 113; PI. Wright. 2. 105.) From Nebraska (Nuttall) to the shores and 

 islands of Great Salt Lake (Stansbury) and Oregon, (Geyer ;) Carson City, 

 (67 Anderson.) Foot-hills and gravelly slopes throughout Nevada ; 4,000- 

 6,000 feet elevation ; May-July. (710.) 



Malacothkix obtusa, Benth. Plant. Hartw. 321. Annual, erect, 

 branching, 2-12' high ; leaves at first whitish-woolly above, soon nearly or 

 quite glabrous ; the radical ones 2-3' long, runcinate-pinnatifid with obtuse 

 dentate lobes ; stem-leaves linear, toothed or entire ; heads small, 5-7" wide ; 

 involucre bell-shaped, calyculate, the inner scales subequal, oblong-linear, 

 white-margined, 3" long ; flowers yellow or whitish ; achenia 5-costate and 

 with intermediate pairs of smaller ridges ; outer pappus cup-like, obtusely 

 about 24-toothed, without awns ; inner pappus rather coarse, very scabrous, 

 deciduous. — Near the last, but with much smaller heads, and no persistent 

 bristles of the outer pappus. California, (Hartweg, Parry, Brewer!) 

 Stansbury Island, Great Salt Lake ; 4,300 feet elevation ; June. (711.) 



Ceepis ^ RUNCiNATA, T. & G. Perennial, hirsute or becoming nearly 

 smooth ; radical leaves oblong or obovate, runcinate-lobed or only slightly 

 toothed ; scape 1-2° high, branching, bearing a few linear bract-like leaves; 

 branches and involucres more or less hirsute with blackish often glandular 

 hairs ; involucres many-flowered, calyculate, the scales linear-lanceolate, with 

 scarious margins ; achenia slightly tapering upward, striate.— Saskatchewan 

 to Nebraska and Colorado ; Oregon, (Geyer.) Meadows and wet places near 

 Salt Lake City, and in the Wahsatch and Uintas ; 4,300-7,000 feet eleva- 

 tion ; May-July. The present specimens are much larger than those from 

 Colorado, and are much more blackish-hirsute on the peduncles and involu- 

 cres. (712.) 



1 CEEPIS, L. Heads several-many-flowered; the flowers all ligvdate. Involucre Usually calycu- 

 late with a few small hractoolcs, the proper scales nearly equal, in a single series. Eeceptacle naked or 

 slightly hairy. Achenia terete or somewhat compressei, 8-30-striato, usually narrower above or even 

 tapering into a short heak, the apex expanded into a minute disk. Pappus pure white, copious, of den- 

 ticulate or scahrous delicate capillary bristles, or sometimes of more rigid bristles slightly dilated to- 

 ward the base.-Annnal, biennial, or perennial herbs, natives of Europe, Asia, and Northwestern Amer- 

 ica, commonly with very variable runcinate-pinnatifid or dentate leaves, and yellow flowers. 



