Plate XX. 



QUERCUS DUMOSA var. MUNITA. 



Description. A low rigid very branching shrub : twigs and foliage sparsely stellate- 

 pubescent: leaves coriaceous, subsessile, oval from a half-inch to an inch and a half long, 

 the margin undulate and with numerous sinuate rigidly spinose teeth : acorns solitary and 

 sessile, or more commonly several and spicate ; cup low-hemispherical, tuberculate, from a 

 half-inch to an inch broad ; nut oval, obtuse an inch long or less, indistinctly lineate. 



Habitat. Foot-hills of the Sierra Nevada, along Sweetwater Creek, in El Dorado 

 County, California. 



Remarks. The drawing was made from specimens obtained by Mrs. Curran. It 

 will be seen from the plate that the shrub may possibly be of biennial fructification. If this 

 prove true, it will have to take specific rank. Typical Q. dumosa is not known to inhabit 

 the hills east of the great central valley of California; and the present form is in need of 

 further field study. 



I may here insert the characters of another scrub oak, the specimens of which were 

 brought last j^ear from the Peninsula of Lower California, by the veteran collector and 

 former associate of Dr. Kellogg, Mr. G. W. Dunn. This may be fitly named 



QUERCUS TURBINELLA. 



Description. Shrub from four to seven feet high, with many rigid divergent 

 branches, the branchlets rusty-tomentose : leaves oblong, about an inch long, on petioles 

 of only two or three lines length, coriaceous, plane, the margins all around armed with 

 short, spreading, spine-tipped teeth, pale on both faces, glaucous above, stellate-tomentose 

 beneath, conspicuously feather-veined and with a minute but strong reticulation which is 

 most obvious beneath: fructification annual: acorns solitary on peduncles from one-half 

 to three-fourths of an inch long; cup turbinate, thin, not in the least tuberculate, from four 

 to six lines broad, embracing the base only of the slender nut, which is only a fourth or 

 a third of an inch thick and thrice as long. 



