72 University of California Publications. [botaxy 



alt. At the head of Strawberry Valley it is reduced to a mere 

 shrub, and at 7000 ft. alt. ou Tahquitz Ridge occurs a form only 

 a few feet high. This dwarf form is not to be confused with 

 the var. vaccinifolia Engelm.* (Nos. 2524, 2466.) 



Quercus dumosa Xutt. Scrub Oak. 



Abundant in the chaparral belt, and often found l^eueath the 

 pines at considerable altitudes on the south side. (No. 2644.) 



URTICACE^. 



Urtica holosericea Xutt. Nettle. 



Collected at various places below the 6000-foot contour. 



LORANTHACE^. 



Arceuthobium occidentale Engelm, Pine Mistletoe. 



Quite common on Pinus ponderosa and its var. Jeffreiji, on 

 P. Conlteri and on P. Lamheriiana. (Nos. 2100, 2566.) 



Phoradendron juniperinum Libocedri Engelm. 

 Not rare on Lihocedrns decurrens. (No. 2565.) 



Phoradendron villosum Xtdt. Mistletoe. 



Abundant on the two common oaks, — Quercus Calif ornica 

 and Q. chrysolepis. (No. 2531.) 



POLYGONACE^. 



Chorizanthe fimbriata Xntt. 



Found at 5300 ft. alt. on the west side. (No. 2255.) 



Chorizanthe staticoides BeiitJi. 



Very common in the lower foot-hills and reaching into the 

 pine forests on the Johnston Ranch. 



Eriogonum apiculatum Wats., Proc. Am. Acad. xvii. 379 



(1SS2). 



*Cf. Merriam, in N. A. Fauna xvi. 142 (1899). 



