1096 CONTBIBUTIONS FROM THE NATIONAL HERBARIUM. 



4. Arctostaphylos nochistlanensis Loeseuer, Bull. Herb. Boiss. II. 3: 220. 



1903. 



Oaxaca; type collected near Tillantongo, Nochistldn. 



Branches finely pubescent ; leaves oblong or lanceolate, 3 to 5.5 cm. long, ob- 

 tuse, glabrous above, pale and minutely pubescent beneath ; corolla 6 mm. long ; 

 fruit 4 to 5 mm. in diameter. 



5. Arctostaphylos diversifolia Parry; A. Gray, Syn. Fl. ed. 2. 2^: 397. 1886. 

 Arctostaphylos arguta diversifolia Parry, Proc. Davenport Acad. 4: 35. 1884. 

 Comarostaphylis diversifolia Greene, Bull. Calif. Acad. 2: 406. 1887. 

 Northern Baja California. Southern California; type from Jamul Valley. 

 Shrub, the branchlets tomentulose; leaves elliptic or oval, 2 to 9 cm. long, 



obtuse or acutish, revolute, glabrous above; corolla 5 to 7 mm. long; fruit 4 

 mm. in diameter. 



6. Arctostaphylos conzattii Feiiiahl, Proc. Aiiier. Acad. 36: 497. 1901. 

 Arctostaphylos glahrata Fernald, Proc. Amer. Acad. 36: 497. 1901. 

 Comarostaphylis glahrata Small, N. Amer. Fl. 29: 90. 1914. 

 Comarostaphylis conzattii Small, N. Amer. Fl. 29: 91. 1914. 



Puebla, Oaxaca, and Chiapas; type from Cerro de San Felipe, Oaxaca. 



Spreading shrub, 0.3 to 1 meter high, the branchlets puberulent; leaves ob- 

 tuse or acute, glabrous above, thinly tomentose or glabrate beneath, short- 

 petiolate ; corolla 4 to 6 mm. long ; fruit 6 to 7 mm. in diameter. 



7. Arctostaphylos angustifolia (Klotzsch) Hemsl. Biol. Centr. Amer. Bot. 2: 



278. 1881. 



Comarostaphylis angustifolia Klotzsch, Linnaea 24: 74. 1851. 



Described from Mexico ; specimens from Michoac4n probably belong here. 



Branchlets finely pubescent ; leaves short-petiolate, linear-oblong or narrowly 

 ublong, 3 to 8 cm. long, obtuse or acute, glabrous above, tomentulose beneath ; 

 corolla 6 to 7 mm. long ; fruit 4 to 6 mm. in diameter. 



8. Arctostaphylos longifolia Benth. PI. Hartw. 44. 1840. 

 Comarostaphylis longifolia Klotzsch, Linnaea 24: 75. 1851. 

 Comarostaphylis attenuata Klotzsch, Linnaea 24: 75. 1851. 

 Arctostaphylos attenuata Hemsl. Biol. Centr. Amer. Bot. 2: 278. 1881. 

 Michoac^n and Mexico ; type from Angangueo, Michoacfin. 



Branchlets glandular-hirsute; leaves oblong or narrowly oblong, 5 to 9.5 cm. 

 long, acute or obtuse, glabrate above, tomentose or glabrate beneath ; panicles 

 large and dense; corolla 6 to 7 mm. long. 



9. Arctostaphylos rupestris Robins. & Seat. Proc. Amer. Acad. 28: 112. 1893. 

 Comarostapliylis rupestris Small, N. Amer. Fl. 29:90. 1914. 



MichoacS.n and Mexico ; type from Pdtzcuaro, Michoacdn. 



Shrub, 1.5 to 4.5 meters high, the branches tomentulose ; leaves narrowly 

 oblong, 7 to 16 cm. long, acute, green and glabrate above, pale-tomentulose 

 beneath ; panicles lax, equaling or shorter than the leaves ; corolla 6 to 7 mm. 

 long. 



10. Arctostaphylos glaucescens H. B. K. Nov. Gen. & Sp. 3 : 278. 1819. 

 Comarostaphylis glaucescens Zucc. ; Klotzsch, Linnaea 24: 76 1851. 

 Type collected between Guanajuato and Valenciana. 



Branchlets puberulent ; leaves oblong-lanceolate, 10 cm. long or less, mucro- 

 nate, glabrous and lustrous above, pubescent and glaucous beneath. 



