oe Cee ee es ee ee ee ee 
Robinson and Greenman—Mexican Plants. 157 
larly pinnatifid, green and glabrous above, paler and arachnoid- 
ubescent beneath; lateral segments in about 8 pairs, divaricate, 
lanceolate, acuminate, repand-dentate, about 1} inches long, a 
third as broad; the terminal one scarcely larger, narrowly del- 
toid; lower leaves on slender petioles (7 inches long); the upper 
upon winged petioles, auriculate-clasping at the base; bracts of 
the diffuse panicle narrowly lanceolate, attenuate, sessile, auricu- 
late-clasping: heads discoid, usually solitary at the end of the 
slender branches; bractlets subulate-filiform: involucre about 
13-phyllous, 4 lines long, pubescent, 20-24-flowered ; the scales 
minutely dark-tipped and tufted at the apex: flowers ochroleu- 
cous: corolla segments. short: achenes glabrous.—Collected by 
.G. Pringle, on the Sierra de Clavellinas, altitude 9,000 feet, 24 
October, 1894 (No. 6010). 
_SENECIO ReETIcULATUS DC. A plant of habit and foliage 
identical with an authenticated specimen of this species from 
e Candolle’s herbarium, has been collected by Mr. Pringle on 
the Nevado de Toluca in the State of Mexico, 7 September, 
nasi dark-colored with scarious margins, narrow : 
obtusish apex: flowers about 50 in a head; tube slender, thick- 
ened at the base; throat ampliate, very short; lobes rather —_ 
ut recurved or coiled in anthesis: achenes smooth.—Collecte 
O14 C. G., Pringle, on dry ledges of the Sierra de San Felipe, 
Xaca, altitude 7,000 feet, 10 October, 1894 (No. 5828). 
Peltate, about 10-lobed, orbicular in outline, 1 to 2 feet in diame- 
mat divergent not divaricate with reference to the primary 
heade ~ ut¢: panicle ample, pyramidal, bracts reduced, subulate; 
acs numerous, 5-flowered, 5 to 7 lines long, shortly and incon- 
X Biren calyculate at the base or ecalyculate : involueral scales 
‘ian. oe narrowed to an obtusish apex, densely tomentose, 
st lines long, nearly or quite 2 lines broad: akenes glabrous, 
out, many-striate, light-colored.—Collected by C. G. Pringle, on 
