96 THE BROAD-SCLEROPHYLL VEGETATION OF CALIFORNIA. 



upper surface. In both they are pubescent below. A few species of 

 Ceanothus and Ardosiaphylos have more or less sticky-glandular 

 leaves. Three species commend themselves to the sense of smell — 

 Myrica calijornica, Umbellularia californica, and Eriodidyon cali- 

 fornicum. The last two are widespread and common, and thus give 

 the broad-sclerophyll vegetation a reputation for odoriferousness 

 which it hardly deserves. 



The external characteristics of the 74 species are presented in 

 detail in table 12. 



Table 12. — External leaf character. 



Compound (2.7 p. ct.): 



Berberis pinnata. 



Xylothermia montana. 

 Lobed (1.4 p. ct.): 



Fremontodendron califor- 



nicum. 



Size: 



Leptophylls (4.1 p. ct.): 

 Adenostoma fascicu- 



latum. 

 A. sparsifolium. 

 Ceanothus dentatus. 

 Nano-IeptophyIls(2.7p.ct.) : 

 Ceanothus foliosus. 

 C. rigidus. 

 Nanophylla (9.5 p. ct.): 

 Cneoridium dumosum. 

 Ceanothus cuneatus. 

 C. pinetorum. 

 C. prostratus. 

 C. verrucosus. 

 Arctostaphylos myrti- 



folia. 

 A. nummularia. 

 Nano-microphylls (45.9 



p. ct.): 

 Quercus dumosa. 

 Q. durata. 

 Q. vaccinifolia. 

 Cercocarpus betulsB- 



folius. 

 C. ledifolius. 

 Xylothermia montana. 

 Rhamnus crocea. 

 Ceanothus cordulatus. 

 C. crassifolius. 

 C. divaricatus. 

 C. diversifolius. 

 C. hirsutus. 

 C. incanus. 

 C. megacarpus. 

 C. papillosus. 

 C. sorediatus. 

 C. spinosus. 

 C. thyrsiflorus. 

 C. tomentosus. 

 Arctostaphylos drupacea. 

 A. glauca. 

 A. hookeri. 

 A. manzanita. 

 A. mariposa. 

 A. montana. 



Size — Cont'd. 

 Nano-microphylls (45.9 



p. ct.) Cont'd. 

 A. nevadensis. 

 A. parryana. 

 A. patula. 

 A. pumila. 

 A. pungens. 

 A. stanfordiana. 

 A. tomentosa. 

 A. vestita. 

 A. viscida. 

 Microphylls (20.3 p. ct.): 

 Castanopsis semper- 



virens. 

 Quercus chrysolepis. 

 Q. engelmanni. 

 Q. wislizeni. 

 Berberis pinnata. 

 Dendromecon rigidum. 

 Prunus ilicifolia. 

 Rhamnus californica. 

 Ceanothus palmeri. 

 Fremontodendron cali- 



fornicum. 

 Garrya elliptica. 

 G. fremontii. 

 Comarostaphylis diver- 



sifolia. 

 Xylococcus bicolor. 

 Arctostaphylos ander- 



sonii. 

 Micro-mesophylls (14.9 p. ct.) 

 Myrica californica. 

 Castanopsis chryso- 



phylla. 

 Quercus agrifolia. 

 Pasania densiflora. 

 Umbellularia californica. 

 Heteromeles arbutifolia. 

 Rhus integrifolia. 

 R. laurina. 

 R. ovata. 



Ceanothus velutinus. 

 Eriodictyon californicum. 

 Mesophylls (2.7 p. ct.): 

 Quercus sadleriana. 

 Arbutus menziesii. 

 Margin: 



Entire (58.1 p. ct.): 

 Castanopsis chrysophylla. 

 C. sempervirens. 



Margin — Cont'd. 

 Entire (58.1 p. ct.) Cont'd. 



Quercus vaccinifolia. 



Umbellularia californica. 



Dendromecon rigidum. 



Cercocarpus ledifolius. 



Adenostoma fascicu- 

 latum. 



A. sparsifolium. 



Xylothermia montana. 



Cneoridium dumosum. 



Rhus integrifolia. 



R. laurina. 



R. ovata. 



Rhamnus californica. 



Ceanothus cordulatus. 



C. cuneatus. 



C. divaricatus. 



C. hirsutus. 



C. incanus. 



C. megacarpus. 



C. palmeri. 



C. spinosus. 



Garrya elliptica. 



G. fremontii. 



Arbutus menziesii. 



Xylococcus bicolor. 



Arctostaphylos drupa- 

 cea. 



A. glauca. 



A. hookeri. 



A. manzanita. 



A. mariposa. 



A. montana. 



A. myrtifolia. 



A. nevadensis. 



A. nummularia. 



A. parryana. 



A. patula. 



A. pumila. 



A. pungens. 



A. stanfordiana. 



A. tomentosa. 



A. vestita. 



A. viscida. 

 Toothed (24.3 p. ct.): 



Myrica californica. 



Quercus engelmanni. 



Q. sadleriana. 



Pasania densiflora. 



Cercocarpus betulse- 

 folius. 



