84 PROCEEDINGS OF THE AMERICAN ACADEMY, 
Pringle, no. 7698 (hb. Gr.), distributed as “ Stevia salictfolia, Cav.” : 
State of Mexico: Mt. Ixtaccihautl, altitude 3350 to 3650 m., 1908, | 
©. A. Purpus, no. 185 (hb. Gr. and hb. Brandegee), Mr. Pringles ™ 
specimen above cited was referred to S. salicifolia, Cav. to which 
species S. vernicosa is evidently related, but from which it differs in . 
having smaller closely instead of remotely serrulate leaves; moreover, — 
the leaves are not attenuate at both ends, and the lateral veins are barely — | 
visible instead of conspicuous as in typical S. salicifolia. = 
Carphochaete Schaffneri, n. sp. An herbaceous perennial: stems 
usually several from a ligneous base, 3 to 4.5 dm. high, glabrous or 4 
puberulent: leaves opposite, sessile, subamplexicaul, linear-lanceolate, 
1 to 4 cm. Jong, 1 to 3.5 mm. broad, acute, entire, glabrous, glandular 
punctate: inflorescence loosely corymbose: heads 2.5 to 3 cm. long, 
4-flowered : involucre 1.3 to 1.5 em. high; bracts of the involucre lance- ) 
olate and acute to lanceolate more or less abruptly narrowed at the apex — 
and submucronate-acute, externally as well as the peduncles glandular 
hirtellous: pappus of 6 to 8 elongated linear-lanceolate 1-nerved pale- | : 
aceous aristae and 2 to 5 short oblong obtuse pales: corollas 1.5 to 1.0 
em. long, white with a purplish throat, glabrous: achenes 10 to 12 mm. — 
long, minutely hirtellous. — Mexico. State of San Luis Potosi: Valley 
of San Luis Potosi, September, 1876, Dr. J. G. Schaffner, no. 241 
(hb. Gr.), distributed as “An Stevia triflora, DC.” ; region of San Luis : 
Potosi, altitude 1850 to 2465 m., Parry & Palmer, no. 329 (hb. Gr.). 
The number here cited from Parry & Palmer’s collection was referred — 
by Hemsley, Biol. Cent.-Am. Bot. ii. 108, to Carphochaete Graham, — 
A. Gr. from which species C. Schaffneri is easily distinguished by thé 
narrower acute leaves and the more lanceolate glandular-hirtellous 
unciliated involucral bracts. 3 
Brickellia megalodonta, n. sp. Stem terete, green or purplish, 
pubescent: leaves opposite, petiolate, triangular-ovate to triangular-lance _ 
olate, 3 to 7 em. long, 1.5 to 5 cm. broad, acuminate, acute, unequally — 
and coarse dentate, subcordate to somewhat cuneate at the base, 
3-nerved, olive-green and sparingly pubescent above, paler ard pubes _ 
cent on the nerves heneath: inflorescence a terminal somewhat leafy 
paniculate cyme ; peduncles 2.5 em. or less in length, pilose-pubescent 
and with glandular hairs intermixed: heads 12 to 13 mm. high, about 
15-flowered: involucral bracts imbricated, 4—5-seriate, lance-acuminate, 
gradually narrowed to the tip, conspicuously nerved, pale-green, often 
tinged with purple; the outer bracts shorter than the inner: papp¥s 
silvery white, slightly shorter than the yellowish-green corolla: mature 
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