OLEACE^ 



835 



pale lenticels, and ashy gray and roughened by the dark elevated lunate leaf-scars iu their 

 second year; more often a shrub or small shrubby tree, with numerous slender spreading 



Fig- 738 



stems 6-8 tall. Winter-buds: terminal acute, nearly \' long, with dark reddish brown 

 glutinous scales. 



Distribution. Rocky slopes and dry ridges; Western Texas, valley of the Rio Grande 

 (mouth of Devil's River, Valverde County) to the Chisos Mountains, and in southern 

 New Mexico; in Coahuila, Nuevo Leon and Chihuahua; the var. macropetala in canons 

 of northern Arizona; the var. serrata (fig. 738) in Coahuila. 



2. Fraxinus Greggii A. Gray. 



Leaves l|'-3' long, with a winged petiole and rachis, and 3-7 narrow spatulate to oblong- 

 obovate leaflets entire or crenately serrate above the middle with remote teeth, a slender 



Fig. 739 



midrib, and obscure reticulate veins, thick and coriaceous, dark green on the upper surface 

 rather paler and covered with small black dots on the lower surface, ' f ' long, |'-j' wide, 

 and nearly sessile. Flowers perfect or unisexual, on slender pedicels i'-|' long, from the 



