STANDLEY TREES AND SHRUBS OF MEXICO 1471 



3a. Mikania eriophora chiapensis Robinson, Proc. Amer. Acad. 35: 341 

 1900. 



Chiapas. 



Plant setose-pilose with straight hairs, not woolly; leaves large, the blades up 

 to 22 by 17 cm. 



4. Mikania tonduzii Robinson, Proc. Bost. Soc. Nat. Hist. 31: 256. 1904. 

 Veracruz. Costa Rica; type from Tucurrique. 



Suffrutescent twiner, sordidly glandular-puberulous, glabrate; leaf blades 

 ovate, 5.5 to 14 cm. long, 4 to 9 cm. wide, acuminate, lucid and impressed- 

 veined above; heads densely glomerate on the branches of the rather short 

 inflorescence; involucre sordidly tomentulous; achene much shorter than corolla. 



5. Mikania punctata Klatt, Bull. Soc. Bot. Belg. 31': 195. 1892. 

 Chiapas. Costa Rica; type from EI General. 



Suffrutescent (?) twiner, pilose with many-celled hairs, glabrate; leaf blades 

 suborbicular to broadly deltoid-ovate, 4 to 9 cm. long and wide, subentire or 

 hastate-lobed above base with spreading lobes, dotted with dark glands beneath; 

 heads 9 to 10 mm. high, in ample pyramidal panicles. 



6. Mikania cordifolia (L. f.) Willd. Sp. PI. 3: 1746. 1804. 

 Cacalia cordifolia L. f. Suppl. PL 351. 1781. 



Mikania suaveolens H. B. K. Nov. Gen. & Sp. 4: 135. 1820. 



Mikania gonoclada DC. Prodr. 5: 199. 1836. 



Tepic and San Luis Potosi to Guerrero and Veracruz. Louisiana; Guatemala 

 to South America; type from "America meridionali" (i. e., Colombia). 



Suffrutescent twiner, the 6-angled stems sordid-puberulous; leaf blades ovate, 

 thin, deeply cordate, usually hastate or dentate, more or less densely pubescent; 

 heads subsessile or pedicellate; involucre densely puberulous, 6 to 7 mm. high, 

 with acute or acutish phyllaries. "Toxichec cimarr6n" (San Luis Potosi, 

 Seler). 



7. Mikania gonzalezii Robins. & Greenm. Proc. Bost. Soc. Nat. Hist. 29: 



107. 1899. 

 Veracruz; type from Colonia Melchor Ocampo. 

 *■ Suffrutescent (?), smoothish; leaf blades ovate, thin, glabrous, 4 to 12 cm. 

 long, 3 to 10 cm. wide; heads open-paniculate; phyllaries obtusish or barely 

 acute, essentially glabrous except at tip. 



19. CARPHOCHAETE A. Gray, Mem. Amer. Acad. n. ser. 4: 65. 1849. 

 Suffrutescent, with narrow sessile opposite entire punctate leaves; heads 

 panicled or rarely solitary, pedunculate or rarely sessile, narrowly cylindric, 2 to 

 3 cm. long, few-flowered; involucre of few narrow unequal subherbaceous phyl- 

 laries; achenes linear, 8 to 10-ribbed; pappus of 4 to 14 hnear-attenuate, narrowly 

 scarious-margined awns. 



The genus contains only the four following species. 

 Leaves narrowly linear, 1 to 3 mm. wide, attenuate; pappus awns 4 or 5; phyl- 

 laries all attenuate 1. C. wislizeni. 



Leaves linear-elliptic or narrowly elliptic to linear, obtuse; pappus awns 7 to 14; 

 phyllaries obtuse and mucronate to acute, or the inner acuminate. 

 Phyllaries mucronate from an obtuse or rounded apex, densely arachnoid- 



ciliate at tip 2. C. grahami. 



Phyllaries acute to acuminate, not densely arachnoid-ciliate at tip. 



Phyllaries glandular-punctate but not stipitate-glandular; leaves linear- 

 elliptic to elliptic-spatulate 3. C. bigelovii. 



Phyllaries densely stipitate-glandular; leaves linear 4. C. schaffneri. 



57020—26 11 



