STANDLEY TEEES AND SHRUBS OF MEXICO 1413 



6. Vernonia dictyophlebia Gleason, Bull. N. Y. Bot. Gard. 4: 203. 1906. 

 Guanajuato to Oaxaca; type from Pdtzcuaro, Michoac^n. 



Suffrutescent (?), 1 to 2 meters high; stem tomentellous; leaves oval or ovate, 

 6 to 10 cm. long, 3 to 6 cm. wide, acute, prominulous-reticulate and griseous- 

 tomentellous beneath; heads several or numerous, on peduncles 1 to 4 cm. long; 

 macros of the phyllaries shorter than in the last species. 



7. Vernonia schiedeana Less. Linnaea 6: 399. 1831. 



?Vernonia fragrans Llave in Llave & Lex. Nov. Veg. Descr. 1: 24. 1824. 



Veracruz and Tabasco; type from Panantla and Misantla, Veracruz. Hon- 

 duras and El Salvador. 



Scandent, shrubby, 3 meters high; stem puberulous; leaves oval to eUiptic, 

 8 to 15 cm. long, 2 to 5 cm. wide, short-petioled, puberulous or pubescent above 

 chiefly along costa, puberulous to densely pilosulous beneath; involucre 1 cm. 

 high, the outer phyllaries lanceolate, acuminate or mucronate, stiff, the inner 

 linear-oblong, with loose rounded ampUate brownish tips; heads about 26- 

 flowered; pappus whitish. "Flor de borla" (Veracruz); "aroma " (El Salvador). 



8. Vernonia aschenborniana Schauer, Linnaea 19: 714. 1847. 



San Luis Potosi to Nicaragua; type from Mexico, without definite locality. 



Shrubby, 2 to 5 meters high; stem sordidly puberulous or pilosulous; leaves 

 eUiptic to oblong-ovate, 5 to 10 cm. long, 1 to 3 cm. wide, scabridulous above, 

 usually densely sordid-puberulous or pilosulous beneath; involucre 3 mm. high, 

 its phyllaries ovate or oval, acute or acutish, greenish, with thickish tips, the 

 thin narrow pale margins arachnoid-ciliate; pappus becoming tawny. "Su- 

 quinay" (Honduras). 



The plant is used medicinally. 



9. Vernonia deppeana Less. Linnaea 6: 398. 1831. 



"^.Vernonia stellaris Llave in Llave & Lex. Nov. Veg. Descr. 1: 23. 1824. 



Veracruz to Costa Rica; type from Misantla, Veracruz. 



Shrubby, up to 6 meters high; stem tomentulose; leaves oblong to oval, 8 to 

 15 cm. long, 2 to 6 cm. wide, densely cinereous or sordid-tomentulose beneath; 

 involucre 3.5 mm. high, similar to that of V. aschenborniana. "Suquinaj'" 

 (El Salvador, Guatemala); "tuete" (Costa Rica); "semem" (Guatemala); 

 "cihuapatli," "zi-tit," ''flor de cuaresma" (Chiapas, Seler); " rdjate-luego " 

 (El Salvador). 



10. Vernonia naorelana Gleason, Bull. Torrey Club 46: 241. 1919. 

 Known only from the type locality, Cuernavaca, Morelos. 



Shrub 3 to 5 meters high; stem gray-tomentose; leaves ovate-oblong, 7.5 cm. 

 long, 3 cm. wide, scabrous above, finely graj^-tomentose beneath; involucre 4 to 

 4.5 mm. high, the phyllaries ovate to lanceolate, acute or cuspidate, tomentose- 

 ciliate and somewhat puberulous; achenes thinly pubescent and densely glan- 

 dular; pappus white or very pale tawny. 



11. Vernonia patens H. B. K. Nov. Gen. & Sp. 4: 41. 1820. 

 ? Vernonia lanceolaris DC. Prodr. 5: 37. 1836. 



Michoacdn (or Guerrero) to Panama and northern South America; type from 

 Middle America. • 



Shrubby, 8 meters high or less; stem tomentulose-puberulous; leaves elliptic 

 to oblong-elliptic, 5 to 13 cm. long, 1.5 to 4 cm. wide, smooth to the touch above, 

 puberulous, especially on the veins, beneath; panicles large; involucre 4 mm. 

 high, the phyllaries obtuse or acutish, mostly mucronulate; flowers white. 

 "Tuete" (Costa Rica); "piedezope," "suquinayo," "suquinay," "palo bianco" 

 (El Salvador). 



