ROSE FAMILY. 277 



Eanges, but found in the Sierra Nevada. Apr. Winter buds 

 narrowly oblong, acute, J in. long, the scale.s homologous with 

 petioles. The sucker-like growths of a single year sometimes attain 

 a, length of 8 ft. 



2. HOLODISCUS Maxim. 



Deciduous shrubs with toothed or lobed leaves and no stipules. 

 Flowers creamy- white, small, numerous in terminal panicles. 

 Calyx persistent, 5-cleft. Stamens 20, on a ring-like perigynous 

 disk. Petals 5, rounded. Pistils 5, distinct, alternate with the 

 calyx-lobes. Pellicles hairy, 1-seeded, tardily dehiscent or indehis- 

 cent. (Greek holo, whole or complete, and diskos, a disk.) 



1. H. discolor (Pursh) Maxim, var. ariaefolius (Wats). Cali- 

 roRNiA Meadow Sweet. Shrub, 3 to 6 ft. high; leaves ovate to 

 ovate-elliptic in outline, green above, whitish beneath with soft hairs, 

 coarsely serrate or incised above the entire truncate or broadly cuneate 

 base, I to 3 in. long, on petioles 2 to 6 lines long; panicle ample, 3 to 

 8 in. long, often half drooping in anthesis; flowers IJ lines long; 

 follicles about 1 line long. — (Spir£ea aritefolia Smith.) 



Common in wooded canons of the Coast Kange hills. 



3. ADENOSTOMA H. & A. 



Evergreen shrubs with somewhat resinous herbage. Leaves linear, 

 rigid, entire, small, numerous and mostly fascicled. Plowers small, 

 white, disposed in a terminal and rather close pyramidal panicle, the 

 branches of which are racemose. Calyx obconical, 5-lobed, 10-ribbed, 

 with small bracts at base, the orifice bearing 5 glands. Petals 5. 

 Stamens 10 to 15, inserted 2 or 3 together, alternate with the petals. 

 Pistil 1, simple; ovary obovoid, 1-oelled; ovules 1 or 2, suspended; 

 style lateral, curved, with an obliquely dilated stigma. Fruit an 

 achene, covered by the indurated calyx-tube. (Greek aden, gland, 

 and stoma, mouth, in allusion to the calyx.) 



1. A. fasciculatum H. & A. Chamisal. Bush, 2 to 10 ft. high, 

 with virgate branches clothed with leaf-fascicles; leaves linear or 

 rather broader towards the apex, 3 to 5 lines long; stipules small, 

 acute; flowers crowded, sessile; calyx 1 line long; petals orbicular, 

 spreading. 



The most abundant and characteristic bush of the higher Coast 

 Eanges, commonly gregarious and occupying (to the exclusion of 

 other shrubs) extensive slopes and mountain ridges, such vegetation 

 known to mountaineers as "Chamisal," " Chamiso " or "Grease- 

 wood." It often forms a distinct zone, as in the Sierras, between 

 the foothills and the Yellow Pine belt. June. The leaves of seed- 

 lings are pinnately dissected into 3 to 5 lobes. 



4. CERCOCARPUS HBB:. 



Shrubs or low trees with simple leaves. Flowers from winter buds, 

 solitary or fascicled, terminal on the short branchlets. Calyx consisting 

 of a slender pedicel-like tube surmounted by the low hemispherical 



