CATALOGUE. 425 



achenia densely villous; pappus-scales oblong, obtuse, erose-denticulate 

 shorter than the tube of the yellow corolla.— From Ham's Fork in South- 

 western Wyoming to New Mexico, Arizona and California. 



Page 177. Baileya^ pleniradiata, Harv. & Gray. PL Fendl. 105. 

 Floccose-wooUy, about 1° high; stem and branches strict, leaves incisely 

 pinnatifid or few-toothed, the radical ones bipinnatifid, and the uppermost 

 simple and linear; involucre bell-shaped, the scales 20-30; rays 25-40, 

 broadly obovate, twice as long as the involucre and at length reflexed and 

 imbricated over it ; disk-flowers 40-50 ; achenia obscurely 5-angled, 10-stri- 

 ate, minutely sprinkled with resinous atoms. — Heads an inch in diameter 

 when fully expanded. A few of the central achenia persist long after the 

 rest have fallen away. Dr. Grray observes, and these specimens confirm it, 

 that in this species the branches of the style have minute conical append- 

 ages, though in the other two species they are absolutely truncate. From 

 the Rio Grrande to California, and southward to Sonora and Chihuahua, 

 Mexico. 



Page 209. Vaccinium c^espitosum, Mx. Labrador, (Butler.) 

 Page 210. Aectostaphylos pungens, HBK. (?) With specimens of 

 A. glauca, collected by Dr. Palmer near St. George, are others which 

 accord with what is considered A. pungens, HBK., differing from the first 

 only in their smaller and narrower leaves, which are about 1' in length and 

 mostly acute at each end. 



Page 211. Kalmia glauca. Ait. Labrador, (Butler.) 

 Page 276. Datura meteloides, DC. Gray, in Bot. Mex. Bound. 154. 

 Pruinose-glaucescent, scarcely puberulent ; leaves entire or often coarsely 

 sinuate-toothed ; flowers fragrant, white tinged with bluish-purple, often 8' 

 long, 5-6' in diameter, strongly dilated above the cylindrical calyx, the limb 

 conspicuously 5-toothed ; the teeth very salient, narrowly subulate, ^-V 



' BAILEYA, Harvby & Gray ; I. c. Heads radiate, 15-many-flo-wered ; rays few-many, pistillate, 

 in 1-3 rows, broadly-cuneate or oval, S-lobed, 7-nerTed, unguiculate but not tubular at the base, wither- 

 ing-persistent ; disk-flowers with a short tube^ the throat expanded, and the limb 5-toothed, the teeth 

 ovate, glandular, erect. Involucre of appressed equal oblong-linear woolly scales. Receptacle flat, 

 naked. Branches of the style of the disk-flowers truncate, penicillate, or with short conical appendages 

 bearded at the base. Achenia oblong-clavate, somewhat prismatic, many-striate, the apex truncate. 

 Pappus none. — Low herbs, probably biennial, natives of Northern Mexico and the neighboring parts of 

 the United States, with alternate entire or pinnatifid leaves, and rather showy pale-yellow long-pedun- 

 cled solitary heads. Four of the veins in the ray-corollas form three arched areoles, in each of which 

 there is a free vein. The genus was named in honor of the late Prof. J. W. Bailey, whose son, Mr. W. 

 W. Bailey, was for a time botanist to the Survey of the 40th Parallel. 



54 



