552 



LAURACEAE 



Mountain canons and valley flats of the Coast Ranges and Sierra Nevada, 

 south to San Diego Co. and north to southern Oregon. Very common. 



Biol. and Econ. Note. This tree takes on a variety of forms in different situations. It 

 becomes: (a) a large tree in canon flats, rich valleys or river bottoms; (b) gregarious in 

 canons, where its low colonies are often wind-controlled; (c) a small tree or bush on rock out- 

 cropping in the hills; (d) a slender dwarf 3 to 6 feet high in the chaparral; and (e) pros- 

 trate on the ocean bluffs, forming mats 1 to 2 feet high and 10 to 15 feet broad. As a large 

 tree it is most abundant and of greatest size on the alluvial river flats of northwestern Califor- 

 nia and adjacent Oregon. The wood is odorous, heavy, hard and strong and takes a high 



Fig. 110. UMBELLULARIA CALIFORNICA Nutt. Fruiting branchlet, X 1. 



polish. It is used for staves, shoe-lasts, turned articles, furniture and interior finish and is 

 especially prized by the cabinet maker.- It is also called Bay Tree and Bay-Laurel. In the 

 woods of Mendocino and Humboldt cos. it is known as Pepperwood and in Oregon as Myrtle. 



Locs. East Fork Illinois Eiver, Del Norte Co., Jepson ; Myers Eanch, South Fork Eel 

 Kiver, Tracy 5101; Cahto, Jepson; Elk Creek, Mendocino Coast, Jepson; Mill Creek, Ukiah, 

 Jepson; Cloverdale, Jepson; St. Helena, Jepson; Twin Sisters Peak, w. Solano Co., Jepson 

 2393; Mt. Tamalpais, Jepson; Berkeley, Jepson; Mt. Diablo, Jepson; Swanton, Santa Cruz 

 Co., Jepson; San Antonio Trail, Santa Lucia Mts., Jepson. Sierra Nevada : Elsie Creek, 

 Ainador Co., Hansen 210; Gwin Mine, Calaveras Co., Jepson; Patterson Grade, Stanislaus Co., 

 A. L. Grant 559; Hetch-Hetchy, Jepson; Cedar Creek, Sequoia Park, Jepson; South Fork 

 Kaweah River, Jepson. Southern California: Santa Inez Mts., Brewer 326; Santa Monica 

 Canon, J. H. Barber 7; San Antonio Canon, C. F. Baker 3686; Mt. Ontario, Aurelia S. Ear- 

 wood; San Jacinto Mts., Hall 520. 



Kefs. UMBELLULARTA CALIFORNICA Nutt. N. Am. Sylv. 1:87 (1842); Jepson, Fl. W. Mid. 

 Gal. 191 (1901), Silva Cal. 242, pis. 10, 76 (1910) 



JEPSON, FLORA OF CALIFORNIA, vol. 1, pt. 7, pp. 529-552, Oct. 19, 1921. 



