272 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



material to the latter species. One of the Baja California specimens seems to be 

 intermediate between the two species. 



15. Odostemon gracilis (Hartw.) Standi. 



Berberis gracilis Hartw. ; Benth. PI. Hartw. 34. 1840. 

 Mahonia suhintegri folia Fedde, Bot. Jahrb. Engler 31: 94. 1901. 

 Mahonia gracilis Fedde, Bot. Jahrb. Engler 31: 95. 1901. 

 Nuevo Leon to Oaxaca ; type from Zimapan, Hidalgo. 



Shrub, 1 to 1.5 meters high ; leaflets 5 or 7, ovate, 3 to 5 cm. long, acute ; 

 fruit blue. "Palo amarillo " (Mexico). 



16. Odostemon ang-ustifolius (Hartw.) Standi. 

 Berberis angustifoUa Hartw. ; Benth. PI. Hartw. 34. 1840. 

 Mahonia angustifoUa Fedde, Bot. Jahrb. Engler 31: 91. 1901. 



Known only from the type locality, between Actopan and Pachuca, Hidalgo. 

 Shrub, about 4 meters high ; leaflets 5 to 9, oblong-lanceolate ; fruit purple, 

 sweet. 



17. Odostemon incertus (Fedde) Standi. 



Mahonia incerta Fedde, Bot. Jahrb. Engler 31: 93. 1901. 



Known only from the type locality, between Real del Monte and Atotonilco 

 El Chico, Hidalgo. 



18. Odostemon eutriphyllus (Fetlde) Standi. 



Ma.honia eutriphylla Fedde, Bot. Jahrb. Engler 31: 91. 1901. 



Coahuila to Mexico; type from La Encarnacion, 



Low shrub ; leaflets oval or broader, 2 to 3 cm. long, very spiny. 



A specimen from Ixtaccihuatl was collected on rocks above timber line at an 

 altitude of 3,900 meters. It is possible that the material referred here repre- 

 sents more than a single species. Palmer's no. 14, from Coahuila, is referred to 

 0. schiedeanus by Fedde, but the specimen of this collection in the National 

 Herbarium is certainly not that species. Probably two different plants were 

 distributed under the same number. 



19. Odostemon trifolius (Cham. & Schlecht.) Standi. 

 Berberis trifolia Cham. & Schlecht. Linnaea 5:211. 1830. 

 Mahonia trifolia Roem. & Schult. Syst. Veg. 7: 1616. 1830. 

 Berberis schiedeana Schlecht. Bot. Zeit. 12: 654. 1854. 

 Mahonia schiedeana Fedde, Bot. Jahrb. Engler 31:90. 1901. 



Hidalgo and Mexico ; type from the plains between Guantotalapa and Tlachi- 

 chilco (Veracruz ?). 



Low shrub, sometimes prostrate ; ascending in the Sierra de las Cruces to 

 3,600 meters ; leaflets oval, 2 to 3 cm. long, very spiny ; fruit blue. 



20. Odostemon fascicularis (DC.) Abrams, Bull. N. Y. Bot. Card. 6:360. 1910. 

 Berberis pinnata Lag. Elench. Hort. Madr. 6. 1803, nomen nudum. 

 Mahonia fascicularis DC. Reg. Veg. Syst. 2: 19. 1821. 



Berberis mora/nensis Roem. «& Schult. Syst. Veg. 7: 17. 1829. 



Mahonia pinnata Fedde, Bot. Jahrb. Engler 31:86. 1901. 



Mahonia. pinnata cachira Fedde, Bot. Jahrb. Engler 31:88. 1901. 



Veracruz to Guanajuato, MichoacSn, and Oaxaca. Guatemala; California, the 

 type from Monterey, 



Shrub, 1 to 3.5 meters high ; leaflets with small spiny teeth. The following 

 names are reported, but probably at least some of them apply to other species : 

 "Retumilla," " xoxoco " (Mexico); " palo jarilla " (Valley of Mexico); " ca- 

 chisda " (Hidalgo, Mexico, Guanajuato); " camisdS " (Hidalgo, Veracruz): 

 " quisquirindin," " quisquiringuin " (Hidalgo, Distrito Federal); "palo ama- 

 rillo"; " lena amarilla " ; "palo de tenir ; " " yagabuxe " (Oaxaca). 



