308 PROCEEDINGS OF THE AMERICAN ACADEMY. 



were secured which agree in every detail with the original plant collected 

 by Berlandier in the Valley of Toluca, no. 1164. Our plant as well as the 

 type shows the inflorescence and the scales of the involucre to be glandular- 

 pubescent, a character not mentioned in De Candolle's description, Prodr. 

 V. 115. 



Eupatorium oreithales. Perennial from a horizontal root-stock : 

 roots fibrous, rather stout : stems herbaceous, erect, purple, pubescent, 

 5 to 6 dm. high, leafy below, nearly naked above, frequently branching 

 at the base : leaves opposite, broadly ovate, obtuse or rounded at the 

 apex, subtruucate or short-cuneate at the base, crenate, hirtellous on the 

 upper surface, puberulent on the veins beneath, becoming essentially 

 glabrous, 2 to 5 cm. long, nearly or quite as broad : petioles pubescent, 

 purple, 1 to 3 cm. long : heads few, disposed in loose terminal corymbs, 

 about 10 mm. high, 50-60-flowered : involucral scales about 2-seriate, 

 nearly equal, greenish purple, pubescent, linear-oblong, acute, ciliate, 

 about 6 mm. long : corollas white, 4 to 5 mm. long, tubes slender below, 

 about equalling the ampliated upper portion, the lobes pubescent on their 

 outer surfaces : pappus about as long as the corolla-tube : achenes 3 mm. 

 long, puberulent. — Collected by C. G. Pringle, on the Serrania de 

 Ajusco, altitude 2,400 ra., 28 September, 1896, no. 6563. Nearly related to 

 E. Saltivarii, Schz. Bip., but readily distinguished by its broader more 

 rotund and crenate leaves, and also by the nearly naked stem and longer 

 petioles. 



Eupatorium euontjiifolium, Greene, Pittonia, iii. 31 = ^. Lem- 

 moni, Rob. Proc. Am. Acad, xxvii. 171. 



EuPAToniUM KCELLT^FOLiuM, Greene, 1. c. = E. hyssopinum, Gray, 

 Proc. Am. Acad. xv. 28. 



Gnaphalinm linearifolium. Annual, becoming somewhat ligneous 

 below, herbaceous above : stems terete, white-lanate, 2 to 4 mm. in diam- 

 eter, simple or branched, 7 to 10 dm. high : leaves sessile, linear-attenuate, 

 1 (-3)-nerved, margin revolute, arachnoid-pubescent above, white-tomen- 

 tose beneath, later becoming reflexed, 6 to 11 cm. long, about 2 mm. wide : 

 inflorescence corymbose : heads sessile or nearly so, 6 mm. high ; invo- 

 lucre about 4-seriate ; scales stramineous, the outer ovate-acute, inner 

 oblong-obtusish : flowers numerous, perfect flowers about ten : achenes 

 terete, glabrous. — Collected by C. G. Pringle, on rocky hills near 

 Guadalajara, 7 October, 1889, no. 2342 (distributed as G. leptophyl- 

 lum, DC.) ; on the Sierra de San Felipe, at an altitude of 2,150 m., 17 

 November, 1894, no. 5685 ; and also in the latter locality by C. L. Smith, 

 no. 592. 



