326 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Stevia arachnoidea. Stem, branches of inflorescence, &c., at first 
white-lanate, soon arachnoid, and at length merely glandular-puberulent : 
leaves opposite, lance-oblong, acute, cuneate at the base to a very short 
petiole, pinnately veined, 8 cm. or more in length, dentate, puberulent 
above, much paler and tomentose beneath: inflorescence a round-topped 
dense compound corymb, its branches mostly alternate, spreading at a 
considerable angle and often exceeded by the long narrow linear subtend- 
ing bracts; heads slender, crowded; involucral bracts puberulent, acute, 
mm. long: corollas pubescent, 5 mm. long, the tube purplish, the limb 
white or at least pale: achenes black, glabrous: pappus of several 
short unequal acute scales, without long awns. — S. compacta, Coult. 
in J. D. Smith, Enum, Pl. Guat. ii. 33, not Benth. — Collected 
by Mr. J. Donnell Smith on the Volcano of Agua, Department 
Zacatepequez, altitude 2,700 m., April, 1890, no. 2327. ‘Type in herb. 
ray. S. compacta, Benth. Pl. Hartw. 197, must from description 
have been a very different plant with ovate leaves a third to half as long 
and involucres also much smaller. Schultz Bipontinus (Linnaea, xxv. 279) 
regarded Bentham’s species as probably a form of S. rhombifolia, HBK. 
. ASCHENBORNIANA, Sch. Bip. Linnaea, xxv. 269 (1852). Mr. 
J. M. Greenman informs me that his S. diffusa, Proc. Am. Acad. XXXii. 
307 (1897), proves on comparison with authentic material at the Royal 
Botanical Museum in Berlin to be identical with S. Aschenborniana. 
S. bicrenata, Klatt, Engl. Jahrb. viii. 82, was founded upon a poorly 
developed specimen of S. elatior, HBK. 
S. elatior, HBK., var. decumbens, Rob. & Greenman, Am. Jour. Sci. 
1, 152., later published as S. decumbens, Greene, Pittonia, iii. 32, is 8. 
Liebmannit, Sch. Bip. in Klatt, Leopoldina, xx. 75. 
S. maprensis, Gray, Proc. Am. Acad. xxi. 382, should, I believe, be 
reduced to S. Plummerae, Gray. There seem to be no differences of 
moment. 
S. monarparrouia, HBK., var. amblyolepis. Leaves large and — 
very thin, the blade somewhat deltoid-lanceolate or ovate, rather 
abruptly contracted at the base: scales of the involucre obtuse oF 
rounded at the apex.—Collected by E. A. Goldman, at Pinal, 
Chihuahua, Mexico, altitude about 1,800 m., 19 September, 1898, 10. 
116. 
S. monarparrouiA, HBK., var. macrophylla. Leaves rhombic- 
ovate, 1.2 dm. long, 5 to 6 cm. broad, cuneately decurrent a3 the 
petioles 3 em. or more in length: involucral bracts acute. — Colle cted 
- C..G. ae woods of Baleva; Valley of Mexico, Federal one 
