Pomona College Journal of Economic Botany 



311 



Eriodictyon tomentosum — Shrub, 25-35 dm. high. Frequent in the chaparral belt 

 of the San Gabriel and Santa Ana mountains. 



Eriodictyon parryi — Stems, 8-18 dm. high. Occasional in the San Gabriel, Santa 

 Ana and San Bernardino mountains, in tlie upper chaparral and lower pine- 

 belt. June-August. 



Eriogonum fasciculatum (Wild Buckwheat) — Slirubby, 5 dm. or more high. 



Fremontodendron calif or nicum (Slippery Elm) — Branching slirub, or arborescent, 

 2-7 m. high. Frequent in the upper altitudes of the chaparral belt of our 

 interior regions. June-July. 



Garrya veatchii palmeri (Silk Tassel Tree) — Erect, brandling shrub, 18-25 dm. 

 high. Frequent in the upper portions of the chaparral belt of the San An- 

 tonio and Cuyamaca mountains. January. 



Garrya veatchii undulata — Occasional on Mt. Wilson and Mt. Lowe. 



Garrya pallida — Santa Ana mountains. 



Heteromeles arbutifolia (Christmas Berry) — 3-6 m. high. May- June. 



Hesperoyucca whipplei (Spanish Bayonet) — Common in the cliaparral belt of 

 all our mountains. 



Holodiscus discolor — Shrub 1-2 m. higli, branches short, rigid, bark grayish brown, 

 more or less shreddy. Sometimes called Spiraea discolor. Common in the 

 chaparral belt. 



Isomeris arborea — Widely branching shrub, 1-3 m. high, liard yellow branches 

 and puberulent branches, yellow flowers, from February to Julj'. Found 

 along the bluffs and hills of the coast. 



Isomeris arborea globosa — Similar to the above but with globose capsules. 



Juniperus California — Shrub, usually much branched. Common on the desert 

 slopes. 



Lepidospartum squamaium — Branching shrub, broomlikc, 6-12 dm. high. Fre- 

 quent in the dry waslies of the interior valleys. July-October. 



Libocedrus decurrens (Incense cedar) — A rather small tree of shapely habit, and 

 great drought resistance. 



Lotus glaber (Hosackia) — Tree 5-10 m. high, long j'ellow flowers, turning red- 

 dish. Common on our dry ranges, flowering the year around. 



Lyonothamnus floribundus var. asplenif alius (Iron-wood) — Medium sized tree of 

 beautiful foliage and great drought resistance. Found on Santa Cruz Island. 



Lyonothamnus floribundus (Catalina iron-wood) — Similar to the last, but having 

 a less serrated leaf. Also drought resistant. Native to Catalina Island. 



Malvastrum davidsonii — Tall shrub, or arborescent, 2-4 ra. high. Found in the 

 San Fernando valley, and the La Canada washes. 



