OF ARTS AND SCIENCES. 



143 



Senecio Jaliscana. Perennial, tall and erect, rather stout, white- 

 tomentose throughout; leaves ovate to oblong-ovate, thickish, subcor- 

 date or truncate at base, acute, sinuately and acutely few-toothed and 

 glandular-denticulate, densely tomentose beneath, subglabrate above, 

 3 to 4 inches long or less ; heads discoid, many-fiowercd, in rather 

 dense compound corymbs terminating short peduncle-like branches 

 which are bracteate only above ; involucre short (2 lines long), of 8 

 or 10 imbricated scales, calyculate at base: achenes glabrous; pappus 

 white, the somewhat rigid setje scabrous and often thickened at the 

 tips. — With the foliage and habit nearly of S. sinuatus, but the in- 

 volucre and pappus of S. barha-Johannis. In the Chapala Mountains 

 near Guadalajara; December, 1889 (n. 2931). 



Cacalia (Conophoka) poculifera. Nearly glabrous, puberu- 

 lent above, 3 or 4 feet high, branching and naked above: leaves few, 

 the lower long-petiolate, centrally peltate with depressed centre, 6 to S 

 inches broad, deeply 7-9-lobed with narrow sinuses, the broad lobes 

 sinuately toothed ; upper leaves subreniform, lobed and decurrent into 

 a short very broadly auriculate-clasping petiole, or cordate-ovate, ses- 

 sile and coarsely and acutely toothed : heads 5-flowered on short pedi- 

 cels in rather dense terminal corymbs ; involucre of 5 glabrous scales, 

 2 lines long, slightly calyculate; receptacle flat, naked : corolla-lobes 

 as long as the tube : achenes glabrous or nearly so ; pappus fuscous. 

 — Near Guadalajara, Jalisco ; July, 1889 (n. 2879). 



Cnicus velatus. Stem slender, erect from a tuberous-fascicled 

 root, branched above : radical leaves linear-oblanceolate, 6 to 12 inches 

 long by |- to 1 broad, long-petiolate, glabrous or slightly floccose-pubes- 

 cent above, white-tomentose beneath, entire with short scattered spines 

 upon the margin or sparsely sinuate-lobed, the lobes acute and spar- 

 ingly spinulose ; cauline leaves sessile and decurrent, linear-lanceolate, 

 the shoi't lobes and auricles slightly more strongly spinulose : heads 

 solitary on the elongated branches, campanulate, 9 to 12 lines high, 

 the lanceolate outer scales tipped with a short appressed spine and 

 covered by a veil of floccose hairs : flowers Y>^\e pui'ple : anther-tips 

 attenuate. — In low meadows, Flor de Maria, State of Mexico; Au- 

 gust, 1890 (n. 3228). 



Cnicus (Echinais) linearifolius. Stem erect, very leafy and 

 wing-angled, simple : leaves linear, the radical 12 to 1/5 inches long by 

 an iTich broad or less, petiolate, pinnately many-lobed to the middle, 

 the broad lobes and sinuses undulately margined and spinulose, rough- 

 ish above, white-tomentose beneath ; the cauline similar but smaller, 

 sessile and decurrent, acuminate, erect : heads small (9 lines high). 



