1414 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



12. Vernonia canescens H. B. K. Nov. Gen. & Sp. 4: 35. pi. 317. 1820. 

 Vernonia purptisii T. S. Brandeg. Univ. Calif. Pnbl. Bot. 6: 197. 1915. 

 Piiebla and Guerrero (or Michoacd,n) to South America; type from Guanca- 



bamba, Peru. 



Suffrutescent, 1.3 meters high or less; stem puberulous or tomentose-pilosulous; 

 leaves chiefly ovate or oval-ovate, 6 to 12 cm. long, 2 to 5 cm. wide, sparsely or 

 usually densely pilosulous or silky-pilose beneath; involucre 3.5 to 5 mm. high, 

 the phyllaries all lanceolate or linear-lanceolate, acute or usually acuminate; 

 flowers deep rosy or purplish. "Hierba de San Juan" (Panama); "tuete" 

 (Costa Rica); "ciguapate" (El Salvador). 



13. Vernonia karvinskiana DC. Prodr. 5: 62. 1836. 

 Oaxaca. 



Suffrutescent, 1 meter high; stem purplish, glabrous to sparsely puberulous; 

 leaf blades elliptic to oblong or ovate-elliptic, 3 to 10 cm. long, 1.5 to 3 cm. 

 wide, scabrous above, pubescent or puberulous beneath chiefly along the venation; 

 heads umbellate-cymose; involucre purplish, the outer phyllaries subulate, ap- 

 pressed, the inner lanceolate, mucronulate, with rather loose tips; achenes 

 gland-dotted. 



14. Vernonia oaxacana Schultz Bip.; Klatt, Leopoldina 20: 74. 1884. 

 Oaxaca and Chiapas; type from San Carlos. 



Shrubby; leaves elliptic-oblong, 10 cm. long, 3 cm. wide, scabrellate above, 

 floccose beneath; inflorescence hemispheric; heads crowded; involucre 5 mm. 

 high; phyllaries ovate-lanceolate to narrowly oblong, glabrous, acute, cuspidate. 



15. Vernonia capreaefolia Gleason, Bull. N. Y. Bot. Gard. 4: 200. 1906. 

 Vernonia ehrenbergiana capreaefolia Schultz Bip.; Gleason, Bull. N. Y. Bot. 



Gard. 4: 200. 1906, as synonym. 



Jalisco to Veracruz and Oaxaca; type from Orizaba, Veracruz. 



"Suffrutescent," erect, 1 meter high, puberulent or glabrate; leaves broadly 

 elliptic, 9 to 13 cm. long, 2.5 to 5 cm. wide, acute, coarsely serrate, very scabrous 

 above, nearly glabrous beneath except along the prominent veins; involucre 5 

 mm. high; phyllaries ciliate, the outer lanceolate, cuspidate, the inner ovate- 

 oblong or oblong, acute or mucronulate; pappus nearh^ white. 



16. Vernonia liatroides DC. Prodr. 5: 34. 1836. 



Eupatorium tulanum Klatt, Abh. Naturf. Ges. Halle 15: 324. 1882. 



Tamaulipas to Veracruz; western Mexico; type collected between Tula, 

 Hidalgo, and Tampico, Tamaulipas. 



Herbaceous or suffrutescent; stem puberulent; leaves elliptic-oblong or oblong- 

 lanceolate, 5 to 8 cm. long, 1.5 to 2 cm. wide, serrate, scabrellate above, fer- 

 ruginous-puberulous beneath; heads in rounded subumbellate cymes; involucre 

 3 to 4 mm. high; phyllaries lanceolate or oblong-lanceolate, nearly glabrous, 

 cuspidate; pappus flavescent. " Tlamalacatilacotli " (Morelos, Seler). 



17. Vernonia littoralis T. S. Brandeg. Erythea 7: 3. 1899. 

 Eremosis littoralis Gleason, N. Amer. Fl. 33: 100. 1922. 

 Known only from the type locality, Socorro Island. 



Shrubby; stem sordid-puberulous; petioles 7 to 17 mm. long; blades broadly 

 ovate or oval-ovate, 6 to 9 cm. long, 3.2 to 5.7 cm. wide, serrulate, above smooth, 

 subglabrate, beneath sordid-pilosulous with crisped hairs especially along the 

 venation; heads 7 or 8-flowered, in rounded corymbiform panicles; involucre 

 6 mm. high, whitish, the phyllaries ovate to (inner) linear-oblong, acutish to 

 obtuse, ciliate, the inner deciduous; achenes whitish, glabrous or sparsely 

 puberulous. 



