t 



OTHER WESTEI^N OAKS. 



Q. Emoryi, Torr., Emory's Report, 151. t 9 (1848). An evergreen Black Oak of 

 Arizona and New Mexico; a shapely tree seldom more than thirty feet high, with small 

 lanceolate cordate, often somewhat hastate repandly spinous-toothed leaves, and annual 

 fructification, the small acorns one-third immersed in the scaly hemispherical cup. 



The fact that this is a Black Oak had been singularly overlooked by the late Dr. 

 Engelmann (who had placed it among the White Oaks on account of the position of the 

 abortive ovules), and was first pointed out to him by the present writer, in 1877, while bot- 

 anizing in southern New Mexico. 



Q. TOMENTELLA, Engelm., Trans. St. Louis Acad. iii. 393 (1876); Bot. Calif, ii. 97. 

 An evergreen White Oak of the islands off the coast: related to Q. chrysolepis^ from which 

 it differs in having a stellate pubescence and strongly ribbed foliage. 



The species was first discovered by Dr. Edward Palmer in 1875, on the Lower Cali- 

 fornian island Guadalupe, where also the present writer observed it ten years later. It 

 seems to exist on Guadalupe only in a few more than middle-sized trees, at the cool, foggy 

 summit of the north end of the island; and in a scarcely more considerable number of 

 smaller, and smaller-leaved trees (possibly not of the same species) in the hot and dr}^ 

 cafions of the eastward slope. We found the species on the island of Santa Cruz in 1886, 

 but in no abundance even there. 



Q. VACCINIIFOLIA, Kellogg, Proc. Calif. Acad. i. 96. A small but compact and ele- 

 gant shrub of the higher Sierra Nevada, thoroughly evergreen, and of the White Oak 

 group; related to Q. chrysolepis^ to which it is doubtfully referred as a variety or sub- 

 species by Dr. Engelmann. It is very leafy, and its small entire leaves, these and its 

 young branches being wholly destitute of the fulvous-lepidote pubescence of Q. chryso- 

 lepis^ seem to mark it well enough as at least a fairly good subspecies. 



