1452 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



46. Eupatorium peninsulars T. S. Brandeg Erythea 7: 4. 1899. 

 Southern Baja California; type from San Jos6 del Cabo, 



Shrub of smoothish appearance but finely pubescent; stems erect, 1 to 2 meters 

 high; leaves opposite, petiolate, deltoid-hastate, acuminate, crenate-serrate to 

 subentire, abruptly narrowed at base, subcoriaceous, 3-nerved; heads about 

 10-flowered, in a terminal leafy-bracted pyramidal panicle; involucre much 

 shorter than the florets; phyllaries oval to oblong, rounded at tip, striate-costulate, 

 ciliate; corollas slender, tubulate, yellowish white. 



46a. Eupatorium peninsulare var. epipolimum Robinson, Contr. Gray 

 Herb. n. ser. 73: 17. 1924. 



Baja California; type from Aguaje de Santana. 



Grajash-tomentellous; otherwise essentially like the typical form. 



47. Eupatorium spinaciaefolium (DC.) A. Gray in Torr. U. S. & Mex. Bound. 

 Bot. 75. 1858-59. 



Bulbostylis spinaciaefolia DC. Prodr. 5: 139. 1836. 



Eupatorium hostile Schauer, Linnaea 19: 719. 1847. 



Tamaulipas and San Luis Potosf; type collected between Victoria and Tula, 

 Tamaulipas. 



Erect opposite-branched calciphile shrub; leaves opposite, petiolate, triangular- 

 hastate, acuminate, irregularly toothed, membranaceous, green and scantily 

 puberulent on both surfaces; heads 10 to 12-flowered, in ample leafy panicles; 

 involucre nearly equaling the florets; phyllaries oval to oblong, rounded at tip, 

 stramineous, striate; corollas yellowish or greenish white. 



48. Eupatorium blepharolepis Schultz Bip. in Seem. Bot. Voy. Herald 300. 

 1856. 



Known only from the original collection, said to have come from the Sierra 

 Madre. 



Slender glabrous shrub with terete purple branches; leaves opposite, ovate or 

 lance-ovate, acute or narrowed to an obtuse tip, sparingly serrate, 3-nerved, 

 mostly 2 to 3 cm. long, half as wide; petiole 2 to 4 mm. long; corymbs rounded, 

 terminal on long peduncles; heads small (about 5 mm. high), 30 to 40-flowered; 

 phjilaries oblong, blunt, purple-stained. 



49. Eupatorium nelsonii Robinson, Proc. Amer. Acad. 35: 337. 1900. 

 Guerrero and Oaxaca; type collected between Ayusinapa and Petatldn, 



Guerrero. 



Shrub, 1.5 to 3 meters high; leaves opposite, ovate, acuminate, dentate at the 

 sides, cordate or subcordate and sometimes slightly hastate at base, 3 to 7- 

 nerved, membranaceous, finely pubescent, 7 to 10 cm. long, 4 to 5 cm. wide; 

 petiole 3 to 4.5 cm. long; heads about 16-flowered, in short, opposite, chiefly 

 axillary corymbs, nodding; phjilaries elliptical, rounded at tip, light green 

 striate. 



50. Eupatorium phoenicolepis Robinson, Proc. Amer. Acad. 35: 338. 1900. 

 Known only from the original collection, obtained between San Cristobal and 



Teopisca, Chiapas. 



Slender-stemmed shrub or perennial herb; leaves opposite, petiolate, ovate, 

 acuminate, finely crenate-serrate, cordate at base, usually with a narrow sinus, 

 above puberulent, dull green, below paler, reticulate-veiny, 5 to 7 cm. long, 2.5 

 to 4.5 cm. wide; corymbs strongly convex or even ovoid; heads about 18-flowered, 

 1 cm. long; corollas crimson or purple. 



51. Eupatorium constipatiflorum Klatt, Ann. Naturhist. Hofmus. Wien. 

 9: 355. 1894. 



Known only from the type material, collected in Mexico by Galeotti in 1844; 

 its label is unnumbered and as to locality illegible. 



