WALNUT FAMILY 



509 



3. Myrica californica Cham. & Sch. 

 California Wax-myrtle. Fig. 1238. 



Myrica californica Cham. & Sell. Linnaea 6: 535. 1831. 



An arborescent shrub or tree occasionally 18 

 m. high with a trunk 3-4 dm. in diameter; bark 

 smooth, thin, dark grey or light brown ; wood 

 close-grained, heavy, hard and strong with a 

 slightly reddish tinge. Leaves evergreen, 5-10 

 cm. long, glabrous, thick, oblong to oblanceo- 

 late, acute at apex, narrowed at base to a short 

 petiole, remotely serrate or nearly entire; flowers 

 monoecious ; staminate aments borne below the 

 pistillate, 12-16 mm. long; stamens 7-16, united 

 by their filaments; pistillate aments in the axils 

 of the upper leaves, 8-12 mm. long ; ovary ovate ; 

 bractlets minute ; fruit brownish purple, covered 

 with a whitish wax, 6-8 mm. in diameter. 



Caiions and moist hillsides of the Coastal region, Humid 

 Transition Zone; Puget Sound to the .Santa Monica Moun- 

 tains, California. Type locality: San Francisco. 



Family 27. JUGLANDACEAE. 



Walnut Family. 



Trees and shrubs with alternate pinnate leaves, without stipules, and monoecious, 

 bracteolate flowers, the staminate in long drooping aments on twigs of the pre- 

 vious year, the pistillate solitary or clustered on peduncles at the end of the shoots 

 of the season. Staminate flowers consisting of 3 to many stamens, with or without 

 an irregularly lobed calyx adnate to the bractlet. Anthers splitting longitudinally, 

 erect on short filaments. Pistillate flowers bracted and usually with 2 bracteoles 

 and a 3-5-lobed calyx. Petals sometimes present. Ovary inferior, 1-celled or in- 

 completely 2-4-celled. Ovules solitary, erect; styles 2. Fruit a drupe, with 

 fibrous somewhat fleshy exocarp and a bony, rugose or sculptured endocarp. Seed 

 large, 2-4-lobed, without endosperm ; cotyledons 2-lobed, corrugated, fleshy and 

 oily. 



A family of six genera, two of which, Jnglans and Hicoria (Hickory), occur in North America. 



L JUGLANS L. Sp. PI. 997. 1753. 



Trees or shrubs with resinous aromatic bark and foliage, superposed buds and deciduous 



odd-pinnate leaves. Staminate flowers with 4-40 stamens, in 2 or more series. Pistillate 



flowers with a 4-lobed calyx and 4 petals ; styles short, fimbriate. Drupe with an 



indehiscent somewhat fleshy exocarp. [Name Latin, meaning the nut of Jupiter.] 



About 10 species, distributed over the temperate regions of the northern hemisphere and extending 

 into the mountains of tropical America and the Andes. Type species, Jnglans regia L. 



L Juglans californica S. AA'ats. 

 California Walnut. Fig. 1239. 



Juglans californica S. Wats. Proc. Am. Acad. 10: 

 349. 187S. 



An arborescent shrub, 5-10 m. high or 

 sometitnes a tree attaining a height of IS- 

 IS m. with a trunk 6 dm. in diameter; 

 young branchlets with brownish tomcntum; 

 bark, on old trunks, dark, 8-12 mm. thick, 

 divided into broad irregular ridges. Leaves 

 15-20 cm. long, on slender puberulous 

 petioles; leaflets 9-17, ovate-lanceolate, often 

 long-pointed, 35-75 mm. long, coarsely ser- 

 rate except at base, glabrous above, with 

 tufts of hairs in the axils beneath ; staminate 

 aments slender, 5-7 cm. long, brownish 

 pubescent ; calyx-lobes acute ; stamens 30- 

 40; pistillate flowers in small spicate clus- 

 ters, ovoid, with recurved yellow stigmas, 



