326 PROCEEDINGS OF THE AMERICAN ACADEMT. 



Stevia arachnoidea. Stem, branches of inflorescence, &c, at flrsl 

 white-lanate, soon arachuoid, and at length merely glandular-pnberulent : 

 leaves opposite, lance-oblong, acute, cuneate at the base to a verj Bhort 

 petiole, pinnately veined, * cm. or more in length, dentate, puberulent 

 above, much paler and tomeutose beneath : inflorescence a round-topped 

 dense compound corymb, its branches mostly alternate, spreading at :i 

 considerable angle and ofteu exceeded bj the long narrow linear subtend- 

 iracts; beads slender, crowded ; involucra] bracts puberulent, acute, 

 • I nun. long: corollas pubescent, 5 mm. long, the tube purplish, the limb 

 white or at least pale: achenes black, glabrous: pappus of several 

 Bhort unequal acute Bcales, without long awns. — - s '. compacta, Coult. 

 in J. I). Smith, Enum, PI. Guat. ii. 33, nol Benth. — Collected 

 by Mr. J. Donnell Smith on the Volcano of Agua, Department 

 Zacatepequez, altitude 2,700 m., April, L890, no. 2327. Tjpe in herb. 

 Gray. S. compacta, Benth. PI. Hartw. 197, must from description 

 have been :i very different plant with ovate leaves a third to half as I 

 and involucres also much 8mal let". Schultz Bipontinus (Linnaea, xxv. 279) 

 regarded Bentham's species as probably a form of S. rhombifolia, HBK. 



S. ASCHENBOKNIANA, Sch. Pip. Linnaea, XXV. 2G9 (1852). Mr. 

 J. M. Greenman informs me that his S. diffusa, Proc. Am. Acad, xxxii. 

 .'li'7 i l^'. 1 ?!. proves on comparison with authentic material at the Royal 

 Botanical Museum in Berlin to be identical with S. Asckenborniana. 



S. bicrenata, Klatt, Engl. Jahrb. viii. 32, was founded upon a poorly 

 developed specimen of S. elatior, HBK. 



S. elatior, HBK., var. decumbens, Rob. & Greenman. Am. .lour. Set 

 1. 152., later published as S. decumbens, Greene, Pittonia, iii. 32, is *S. 

 Ldebmannii, Sch. Bip. in Klatt, Leopoldina, xx. ~~>. 



S. madrensis, Gray, Proc. Am. Acad. wi. 382, should, I believe, he 

 reduced to 8. I'litiiiiucrae, Gray. There seem to he no differences of 

 moment. 



s. monakdaepolia, HBK., var. amblyolepis. Leaves large and 

 eery thin, the blade somewhat deltoid-lanceolate or ovate, rather 

 abruptly contracted at the base: Bcales of the involucre obtuse or 

 rounded at the apex. — Collected by E. A. Goldman, at Pinal, 

 Chihuahua, Mexico, altitude about 1,800 m., 19 September, 1898, no. 

 l 16. 



S. monabdaefolia, HBK., var. macrophylla. Leaves rhombio- 

 ovate, L.2 dm. long, •"> to (J cm. broad, cuneately decurrent upon the 

 petioles .'! cm. or more iii length : involucral bracts acute. — Collected 

 by C. G. Pringle, woods of Eslava, Valley of Mexico, Federal District, 



