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. PI. Fendl 105. 
Floccose-woolly, 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 rellexcd and 
imbricated over it; disk-flowers 40-50; achenia obscurely 5-niigl<'(l, 10-slri- 
ate, minutely sprinkled with resinous atoms. — Heads an incli in dianieicr 
when fully expanded. A few of the central acluuiia persist long after the 
rest have fallen away. Dr. Gray observes, and tliese specinuMis confirm it, 
that in this species the l)ranches of the style iiavc minute conicid .•i|)])t'iid- 
ages, thougli in the other two species they are absolutely truncate. From 
the Rio Grande to California, and southward to Sonora and Cidliualiu!!, 
Mexico. 
Page 209. Vaccinium ciESPiTOSUM, Mx. Labrador, (Butler.) 
Page 210. Arctostapiiylos pungens, HBK. (?) With specimens of 
A. glauca^i 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 k'ngtli and 
mostly acute at each end. 
Page 211. Kalmia glauca, Ait. Labrador, (Butler.) 
Page 276. Datura meteloides, DC. Gmy^ in Bot. Mex. Bound 154. 
Pruinose-glaucescent, scarcely pulverulent; leaves entire or otlen coarsely 
sinuate-toothed; flowers fragrant, white tinged with bluisli-purple, often 8' 
long, 5-6' in diameter, strongly dilated above the cylindrical cidyx, Ihe liinl» 
conspicuously 5-toothed ; the teeth very sahent, narrowly subulate, .J-l' 
iBAILEYA, Harvey & Gray; 1. c. Il^-ads radiiito, hVuiuiiy-llowcri'd ; rays frw , pistillate, 
in 1-3 rows, broadly-cuneate or oviil, :M<>1h-(], T-iicrvcd, uii^Miiciil.itr Init imt lul.ular. .Milnr- 
ing-persistent ; disk-flowers with a short tube, the fluoat cxpandid, .md ilir liii:- ■-.<■ i-.tli 
ovate, glaudular, erect. Involucre of appressod tMiual (i1il(mj,'-liiioar w.h)]1.\ !< llai. 
naked. Branches of the style of the disk-flowers trumatv, pciiii illat.', ..r with , ^ ... ..^-i.-nda-. - 
bearded at the base. Achenia oblong-clavate, somowiiat i)risiiiat ir. iiiaii\ --iriatr, liic a|.. x iinii. at. . 
Pappus none.— Low herbs, probably biennial, nativrs uf Nurtlicrii ^[rv.ico and the iiri-hl. Hiii.- jiai ts of 
the United States, with alternate entire or piiiiiatilid Iravcs, an<l rather showy pah-yellow loiii,r-{„.,lnn- 
cled solitary heads. Four of the A'cius in the ray-corollas form three arched .ireoles, in eaeli of which 
there is a free vein. The genus was named in honor of the late Prof. J. W. Bau.kv, wlio.se >:on, Mr. W. 
W. Bailey, was for a time botanist to the Surr ey of the 40th Parallel. 
54 
