1652 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 



Quercus incarnata Trel. Mem. Nat. Acad. Sci. 20: 126. pl. 229-231. 1924. 

 Chihuahua (type collected between Ojitos and Boeoyna, at 2,500 meters), 

 Durango, and MichoacAn, "Encino prieto." 



Quercus felipensis Trel. Mem. Nat. Acad. Sci. 20: 129. pl. 237. 1924. 

 Oaxaca, the type from Cerro de San Felipe, at 2,600 meters or more. 



Quercus moreliana Trel. Mem. Nat. Acad. Sci. 20: 130. pl. 24I. 1924. 

 Type from Campanario, Morelia, Michoacdn. 



Quercus errans Trel. Mem. Nat. Acad. Sci. 20: 131. pl. 24.5. 1924. Vera- 

 cruz (type from Perote) and Hidalgo. 



Quercus hahnii Trel. Mem. Nat. Acad. Sci. 20: 131. pl. 247. 1924. Hidalgo 

 (type from forest of Cajalpa, near Toluca) and Distrito Federal. 



Quercus esperanzae Trel. Mem. Nat. Acad. Sci. 20: 

 Type from Esperanza, Puebla. 



Quercus orbiculata Trel. Mem. Nat. Acad. Sci. 20: 

 Type from San Luis Potosi. 



Quercus miguelitensis Trel. Mem. Nat. Acad. Sci. 20: 

 Type from mountains of San Miguelito, San Luis Potosi. 



Quercus urban! Trel. Proc. Amer. Phil. Soc. 60: 32. 

 from Michoacan or Guerrero, at 1,800 meters. 



Quercus radiata Trel. Proc. Amer. Phil. Soc. 60: 33. 

 collected near Santa Teresa, Tepic. 



Quercus conzattii Trel. Proc. Amer. Phil. Soc. 60: 33. 

 from Cuesta de Huauchillo, Nochixtldn, Oaxaca, at 2,000 meters. 



Quercus tepicana Trel. Mem. Nat. Acad. Sci. 20: 135. 

 from Pedro Paulo, Tepic. 



Quercus pennivenia Trel. Mem. Nat. Acad. Sci. 20: 135. pl. 256. 1924. 

 Chihuahua and Sonora; tj'pe from some unknown locality in the Sierra Madre. 



Quercus aerea Trel. Mem. Nat. Acad. Sci. 20: 135. pl. 257. 1924. Type 

 from La Bufa, Cosihuiriachic, Chihuahua. 



Quercus jonesi Trel. Mem. Nat. Acad. Sci. 20: 136. pl. 257. 1924. Type 

 from ChiquiHstldn, Jalisco. 



Quercus coccolobaefolia Trel. Mem. Nat. Acad. Sci. 20: 136. pl. 258. 1924. 

 San Luis Potosi and Guanajuato (type from Santa Rosa). 



Quercus planipocula Trel. Mem. Nat. Acad. Sci. 20: 136. pl. 269. 1924. 

 Tepic (type from foothills near Pedro Paulo) and Sinaloa. 



Quercus rosei Trel. Mem. Nat. Acad. Sci. 20: 137. pl. 260. 1924. Type 

 from Santa Teresa, Tepic. 



Quercus cofleaecolor Trel. Mem. Nat. Acad. Sci. 20: 137. pl. 261. 1924. 

 Type from foothills near Colomas, Sinaloa. 



Quercus aequivenulosa Trel. Mem. Nat. Acad. Sci. 20: 138. pl. 261. 1924. 

 Type collected near Santa Teresa, Tepic. 



Quercus praineana Trel. Mem. Nat. Acad. Sci. 20: 138. pl. 262. 1924. 

 Type from mountains near Etzatlan, Jalisco. 



Quercus langlassei Trel. Mem. Nat. Acad. Sci. 20: 138. pl. 263. 1924. 

 Sinaloa to Michoacan. 



Quercus chiquihuitillonis Trel. Mem. Nat. Acad. Sci. 20: 139. pl. 264. 

 1924. Michoacdn and Guerrero; type from Chiquihuitillo, at 900 meters. 



Quercus productipes Trel. Mem. Nat. Acad. Sci. 20: 140. pl. 264. 1924. 

 Type from "mountains east of S. Leonel, toward Tepic." 



Quercus exaristata Trel. Mem. Nat. Acad. Sci. 20: 140. pl. 266. 1924. 

 Type from Pedro Paulo, Tepic. 



Quercus endlichiana Trel. Mem. Nat. Acad. Sci. 20: 141. pl. 267. 1924. 

 Durango (type from Sierra de la Candela) and Chihuahua. "Encino," "roble," 

 "rojaca," "rocur6." 



