STANDLEY TEEES AND SHRUBS OF MEXICO. 1171 



Philibertia crassifolia Hemsl. Biol. Centr. Amer. Bot. 2: 318. 1881. 



Philibertia pahnerl A. Gray, Proc. Amer. Acad. 21: 394. 1886. 



Ci/nanchum mexicanum T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 380. 1913. 



Ftmastrum crassifolium Schlechter, Repert. Sp. Nov. Fedde 13: 284. 1914. 



Fumstrum palmeri Schlechter, Repert. Sp. Nov. Fedde 13: 28G. 1914. 



Baja California to Chihuahua, Tamaulipas, Morelos, Tabasco, and Oaxaca. 

 Florida, West Indies, Central America, and northern South America. 



Stems herbaceous or suffrutescent, usually glabrous ; leaves petiolate, 3 to 7 

 cm. long, acuminate or cuspidate, glabrous or often densely pubescent beneath; 

 umbels long-pedunculate, many-tlowered ; flowers 10 to 14 mm. broad, whitish, 

 sericeous outside ; follicles 5 to 6.5 cm. long, about 1 cm. thick. " Petaquilla " 

 (Tabasco) ; " bejuco de leche," " quichi-nixi " (Oaxaca, Seler) ; " mata-t6rsalo " 

 (Costa Rica). 



In Costa Rica the crushed leaves are applied at the point in the skin where a 

 larva o'f the dipterous insect known as " torsalo ' is located, and the latter is 

 soon killed by the acrid juice. 



5. Funastrum rotundifolium (Decaisue) Schlechter, Repert. Sp. Nov. Fedde 

 13: 287. 1914. 



Sarcostemma rotundifolium Decaisne in DC. Prodr. 8: 540. 1844. 



Philibertia rotundi folia Hemsl. Biol. Centr. Amer. Bot. 2: 320. 1881. 



Type from " Guasacualcos." 



Leaves orbicular, abruptly acuminate, puberulent above, white-tomentose 

 beneath ; umbels long-pedunculate, many-flowered ; corolla lobes acute, puber- 

 ailent outside. 



Probably not distinct from the next species. 



(6. Funastrum pannosum (Decaisne) Schlechter, Repert. Sp. Nov. Fedde 

 13: 286. 1914. 



Sarcostemma pannosum Decaisne in DC. Prodr. 8: 540. 1844. 



Philibertia pavoni Hemsl. Biol. Centr. Amer. Bot. 2: 319. 1881. 



Philibertia pannosa Hemsl. Biol. Centr. Amer. Bot. 2: 320. 1881. 



Funastrum pavoni Schlechter, Repert. Sp. Nov. Fedde 13: 286. 1914. 



Sonora to San Luis Poto.si, Queretaro, and Oaxaca. 



Stems herbaceous or frutescent, glabrate; leaves petiolate, 3 to 10 cm. long, 

 acute, acuminate, or cuspidate, green above and puberulent, usually deeply 

 cordate at base; umbels long-pedunculate, many-flowered; corolla white, 1.5 to 

 2 cm. broad, the lobes obtuse or subacute, puberulent outside. " Talayotillo " 

 (Sinaloa). 



7. Funastrum cynanchoides (Decaisne) Schlechter, Repert. Sp. Nov. Fedde 

 13: 284. 1914. 



Sarcostemma cynanchoides Decaisne in DC. Prodr. 8: 540. 1844. 



Philibertia cynanchoides A. Gray, Proc. Amer. Acad. 12: 64. 1876. 



Philibertella cynanchoides Vail, Bull. Torrey Club 24: 207. 1897. 



Sonora, Chihuahua, Coahuila, and Nuevo Leon ; type from Matamoros, 

 ■Coahuila. Western Texas to Arizona. 



Stems chiefly herbaceous; leaves petiolate, deltoid-cordate or sagittate, 2.5 

 to 5.5 cm. long, acute or acuminate, usually glabrous ; umbels many-flowered, 

 long-pedunculate; corolla white, about 1 cm. broad, the lobes puberulent 

 outside, ciliate, acute. 



Philibertia cynanchoides subtruncata Robins. & Fern.\ described from 

 Fronteras, Sonora, is a form with narrow leaves which are mostly truncate 

 iit base. 



'Proc. Amer. Acad. 30: 19. 1894. 



