1602 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



9. Perityle leptoglossa Harv. & Gray, Mem. Amer. Acad. n. ser. 4: 77. 1849. 

 Leptopharynx leptoglossa Rydb. N. Amer. Fl. 34: 22. 1914. 



Sonora; type wrongly ascribed to California. 



Suffrutescent, branched, griseous-puberulous on the younger parts; leaf blades 

 suborbicular, about 2 cm. wide, cordate at base, shallowly and obtusely lobed, 

 the lobes crenate-toothed or crenate; heads about 1.5 to 2.3 cm. wide; rays 

 apparently white; achenes ciliolate. 



10. Perityle parryi A. Gray, PI. Wright. 2: 106. 1853. 



Laphamia parryi Benth. & Hook.; Hemsl. Biol. Centr. Amer. Bot. 2: 210. 



1881. 

 Leptopharynx parryi Rj^db. N. Amer. Fl. 34: 22. 1914. 

 Chihuahua. Texas; t\'pe from the Rio Grande. 



Similar to the last species; stem subglandular-puberulous; leaf blades crenate 

 or slightly crenate-lobod; raj's j-ellow; achenes ciliate. 



11. Perityle cordifolia (Rydb.) Blake. 



Leptopharynx cordifolia Rydb. N. Amer. Fl. 34: 22. 1914. 

 Sonora and Sinaloa; type from Topolobampo, Sinaloa. 



Suffrutescent (?), low; leaf blades cordate-ovate, 1.5 to 3.2 cm. long, doubly 

 crcnate-dentatc; head.s about 2.5 cm. wide; rays probably j^ellow. 



12. Perityle palmeri S. Wats. Proc. Amer. Acad. 24: 57. 1889. 

 Leptopharynx palmeri Rydb. N. Amer. Fl. 34: 23. 1914. 



Known only from the vicinity of the type locality, Guaymas, Sonora. 



Suffruticulose (?), about 25 cm. high; leaf blades cordate-ovate, 3 to 5 cm. 

 long, thin, about equaling the petioles; heads about 2 cm. wide; rays yellow; 

 pappus awn nearly twice as long as the achene. 



13. Perityle lloydii Robins. & Fern. Proc. Amer. Acad. 30: 118. 1894. 

 Leptopharynx lloydii Rydb. N. Amer. Fl. 34: 22. 1914. 



Known only from the type locality, Badehuache, Sonora. 



Suffruticulose, 10 to 30 cm. high; leaf blades deltoid-ovate, doubly dentate, 

 villous; heads about 1.5 cm. wide; rays pale yellow; pappus a minute crown of 

 squamellae and 1 awn about equaling the achene. 



14. Perityle grandifolia T. S. Brandeg. Zoe 5: 224. 1905. 

 Leptopharynx grandifolia Rydb. N. Amer. Fl. 34: 23. 1914. 

 Known only from the type locality, Cerro Colorado, Sinaloa. 

 Suffrutescent, 10 to 20 cm. high; leaf blades ovate, about equaling the petioles, 



crenate-serrate, cordate at base, thin; rays "yellow." 



15. Perityle lobata (Rydb.) I. M. Johnston, Proc. Calif. Acad. IV. 12: 1205. 

 1924. 



Leptopharynx lobata Rydb. N. Amer. Fl. 34: 23. 1914. 



Baja California; type from Coronado. 



Suffrutescent (?), about 10 cm. high; leaf blades orbicular-reniform in outline, 

 1.5 to 2.5 cm. wide, about equaling the petioles, the lobes oblong-obovate, doubly 

 sinuate, dentate; rays yellow; pappus awn nearly twice as long as the achene. 



16. Perityle trisecta Rydb.; Macbride, Contr. Gray Herb. n. ser. 56: 39. 

 1918. 



Leptopharynx trisecta Rydb. N. Amer. Fl. 34: 23. 1914. 



Chihuahua; type from City of Chihuahua. 



Suffruticulose, much branched, up to 30 cm. high; leaf blades 1 to 3 cm. long, 

 usually shorter than the petioles, deeply 3-lobed, the lobes toothed or crenatr; 

 rays pale yellow; pappus awn longer than the achene. 



