CHAPTALIA. 191 
and in my own, gathered in from almost the whole extent of 
southern North America, and northern and middle South 
America. 
Out of these collections I find the following to have been 
hitherto undescribed ; and there are more such, doubtless. 
I do not find ground for distinguishing, generically, between 
Chaptalia and Lerta. 
C. TEXANA. Plant with rather large foliage very thin, and 
with the usually solitary scape, from a short and not thick root- 
stock : leaves commonly 4 to 6 inches long, lyrate by a few pairs 
of small shallow lobes, the large terminal one oblong-oval, 
acutish, obsoletely sinuate and not remotely retrose-dentate, the 
upper face green but with a few conspicuous rolls of wool lying 
along the midvein, beneath permanently white-tomentose but 
thinly so: scape 8 to 16 inches high, bractless, floccose, not 
thicker under the involucre, this an inch high, of floccose- 
tomentose linear acuminate bracts: small achenes scabrous, the 
slender stipe of the pappus twice as long. 
Rocky sparsely wooded ground in western Texas, the type 
Neally’s 297 as in U. S. Herb., Lindheimer’s n. 446 and the n. 
674 of the Mexican Boundary Survey appear to be the same ; 
perhaps also Reverchon’s n. 1546, but that is doubtful. It 
seems different. 
C. CARDUACEA. Smaller than the last, the foliage firmer, 
hardly lyrate, the whole leaf sinuate-lobed, and somewhat 
retrorsely so, but the upper lobes broader and more shallow, 
the denticulation very sparse, upper face glabrous, lower white- 
tomentose: scapes only 6 inches high, bractless, rigid, wiry, the 
rather large heads nodding even in maturity; bracts subulate 
and subulate-linear, hard and rigid, pungently acute, tomentose: 
achenes papillose-scabrous, shorter than the stipe of the pappus, 
San Diego, Texas, Miss Croft, n. 35 as in U. 8. Herb. 
C. SONCHIFOLIA. Plant large, about 3 scapes a foot high, 
the numerous leaves about 4 inches long, all from the 
nearly obsolete crown of a cluster of long and soft whitish roots, 
leaves thin, only thinly arachnoid beneath, above glabrate ex- 
cept as to rolls of loose wool lying along the midvein, lyrate- 
pinnatifid, the shallow rounded lobes each with 2 or 3 small 
