606 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Shrub, 1 to 1.5 meters high ; leaves 4 to 5 cm. long, acuminate, pubescent ; 

 involucres dark purplish red ; capsule 7 mm. long, long-stipitate. 



5. Pedilanthus campester T. S. Brandeg. Univ. Calif. Publ. Bot. 6: 56. 1914. 

 Known only from tlie type locality, dry rocky plains, " Picaco-San Ge- 



ronimo," Oaxaca. 

 Leaves ovate, acute, about 6 cm. long and 3 cm. wide, pubescent. 



6. Pedilanthus itzaeus Millsp. Field Mus. Bot. 1 : 305. 1896. 

 Yucatiin ; type from Silam. Cuba and Santo Domingo. 



Glabrous shrub, 1.5 meters high ; leaves ovate, acute, 5 to 7.5 cm. long, 4 to 

 6 cm. wide, fleshy; involucres light pink. " Yaxahalche " (Yucatan, Maya). 



Sometimes cultivated as an ornamental plant. Dond6 states that laundresses 

 employ the leaves for bleaching clothes. Two or tlu-ee drops of the milky 

 juice in water are sometimes taken as a purgative, but its use is dangerous. 



7. Pedilanthus peritropoides Millsp. Field Mus. Bot. 2 : 369. 1913. 

 Known only from the type locality, Coahuayula, MichoacS,n. 



Glabrous shrub ; leaves oblong to ovate, 12 to 15 cm. long, 5 to 6 cm. wide, 

 rounded at apex. 



8. Pedilanthus macrocarpus Benth. Bot. Voy. Sulph 49. pi. 23. f. A. 1844. 

 Baja California and Sonora to Colima ; type from Magdalena Bay, Baja 



California. 



Shrub, about a meter high; capsule about 2 cm. broad. " Candelilla " (Baja 

 California). 



The juice is said to yield a kind of rubber. 



9. Pedilanthus aphyllus Boiss. ; Klotzsch & Garcke, Abh. Akad. Berlin 106. 



1860. 



Pedilantlivs calcaratus Schlecht. Linnaea 19: 155. 1847. 



Veracruz and Puebla. 



Shrub, a meter high or less, with whitish branches, usually leafy; involucre 

 red, 2 cm. long. " Periquito " (Oaxaca, Reko; perhaps relating to some other 

 species); " gallitos " (Puebla, UrMnu). 



10. Pedilanthus nodiflonis Millsp. Field Mus. Bot. 1: 305. 1896. 

 Yucatan ; type from Silam. 

 Shrub, sometimes 2 meters high, widely branched, leafless ; involucre red, 



8 mm. long. 



11. Pedilanthus cymbiferus Schlecht. Linnaea 19: 253. 1847. 

 Type from somewhere in Mexico. 



Branches pubescent, leafless ; involucres 12 mm. long. 



12. Pedilanthus articulatus (Klotzsch & Garcke) Boiss. in DC. Prodr. 15": 

 6. 1862. 



DiadeJiaria artioiilata Klotzsch & Garcke, Abh. Akad. Berlin 108. 1860. 



Known only from the type, this said to have come fi*om Mexico. 



Leaves oblong, 4 to 5 cm. long, obtuse or retuse, cuneate at base, puberulent 



13. Pedilanthus bracteatus (Jacq.) Boiss. in DC. Prodr. 15': 6. 1866. 

 EuphorUa bracteata Jacq. PI. Hort. Schonbr. 3: 14. pi. 278. 1798. 

 Based on specimens said to have come from Mexico. 



Shrub. 1.2 meters high ; leaves 10 cm. long, glabrous, oblong, obtuse. 



14. Pedilanthus spectabilis Robinson, Proc. Amer. Acad. 43: 23. 1907. 

 Zacatecas and Jalisco to Guerrero ; type from Iguala Canyon, Guerrero. 

 Shrub, about 1 meter high, with gray branches; leaves oblong to broadly 



ovate, 6 to 12 cm. long, rounded or obtuse at apex, pubescent beneath; involucre 

 whitish, nearly 2 cm. long; capsule 1 era. in diameter. 



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