ROSE FAMILY 233 



the cuneate entire base and often lobed or rarely with 1 or 2 deep slashes, 1 to 

 2 (or 4) inches long, on short petioles; flowers 5 to 6 lines broad; fruit black, 5 

 to 6 lines long. 



Gallon flats, 2500 to 4000 feet : Sonoma Co. to Humboldt Co., thence east to 

 Modoc Co. North to British Columbia, east to Michigan. May-June. 



Locs. — North Coast Eanges: Watson School, Bodega, Sonoma Co., Jepson 15,934; Green 

 Valley, Sonoma Co., M. S. BaJcer; Sebastopol, Sonoma Co., Davy; Eound Valley, ne. Mendocino 

 Co., Westerman; South Yager Creek (head of), Humboldt Co., Tracy 5977; Shasta Sprs., 

 Siskiyou Co., Jepson 13,496; Sisson, Jepson 13,853; Lowden, below Hamburg, Klamath Eiver, 

 Jepson 2951. Shasta and Modoc Cos.: Tall Eiver Sprs., ne. Shasta Co.; Egg Lake, w. Modoc Co., 

 M. S. BaTcer ; Fandango trail, Warner Mts., L. S. Smith 156, 905 ; Ft. Bidwell, Manning 149. 



Eefs. — Crataegus douglasii Lindl. Bot. Eeg. t. 1810 (1836), type from "northwest Amer- 

 ica," Douglas, the species based, in part at least, on a cultivated plant; Jepson, Man. 509 (1925). 

 C. punctata var. brevispina Dougl. ; Hook. Fl. Bor. Am. 1:201 (1834), type loc. "northwest coast 

 of America," Douglas. C. rivularis Nutt. ; T. & G. Fl. 1:464 (1840), type from Ore., Nuttall; 

 Jepson, Fl. W. Mid, Cal. 287 (1901), ed. 2, 213 (1911). C. consanguinea var. douglasii T. & G. 

 I.e. Antiiomeles douglasii Eoem. Syn. Eosifl. 3:140 (1847). Mespilus rivularis C. Koch, Woch- 

 enschr. 5:372 (1862). M. douglasii Aschers. & Graebn. Syn. Mitteleur. Fl. 6=:24 (1906), C. 

 gaylussacia Hel. Bull. S. Cal. Acad. 2:69 (1903), type loc. Lagoon, Sebastopol, Sonoma Co., 

 Eeller 6052. 



30. PERAPHYLLUM Nutt, 



Low shrub. Leaves simple, mostly fascicled at the ends of the branchlets or 

 short spurs. Flowers appearing with the leaves, solitary or in a sessile 2 to 3-flow- 

 ered umbel. Ovary inferior, 2-celled, each cell becoming incompletely divided by 

 a false partition; styles 2. Fruit globose, fleshy. — Species 1. (Greek pera, exces- 

 sively, and phullon, a leaf. ) 



1. P. ramosissimum Nutt. Squaw-apple. Intricately branched, 2 to 4 feet 

 high, with short rigid branchlets and grayish bark ; leaves oblanceolate, entire or 

 very minutely serrate, ^2 to li/4 (or 21/4) inches long; petals roundish-obovate, 

 spreading, pale rose, 4 lines long ; fruit yellowish, 4 to 5 lines in diameter. 



High interior plateau, 4000 to 5000 feet : Lassen Co. to northeastern Shasta Co. 

 and Modoc Co. North to Oregon, east to the Rocky Mts. Apr.-May. 



Locs. — Buffalo Eavine, West Valley, Susanville, Sonne; Fall Eiver valley, ne. Shasta Co., 

 M. S. Balcer 389; Likely, Modoc Co., Manning ; Alturas (plateau w.), L. S. Smith 1199. 



Eefs. — Peraphyllum ramosissimum Nutt.; T. & G. Fl. 1:474 (1840), type loc. "near the 

 Blue Mts. of the Oregon," Nuttall; Jepson, Man. 509 (1925). 



31. AMELANCHIER Medic. June Berry 



Shrubs or small trees with simple deciduous leaves. Flowers white, in racemes. 

 Calyx-tube campanulate, more or less adnate to the ovary; calyx-lobes 5, narrow, 

 persistent. Petals ascending. Stamens indefinite, about 20, the outer row with 

 longer filaments. Ovary partly or wholly inferior, 5-celled, each cell in fruit di- 

 vided into 2 by a partition from the back; styles 5, united below. Fruit berry-like, 

 globose, the cells 1-seeded. — Species about 10, north temperate zone. (Savoy name 

 of the Medlar.) 



Bibliog. — Wiegand, K. M., The genus Amelanchier in eastern N. Am. (Ehod. 14:117-161, 

 pis. 95-96, — 1912). Standley, P. C, A new Amelanchier from se. Cal. (Proc. Biol. Soc. Wash, 

 27:197-198,-1914). 



1, A. alnifolia Nutt, Western Service Berry, Shrub 3 to 12 or even 24 

 feet high; leaf -blades mostly elliptic or suborbicular, sharply serrate above the 

 middle, or less commonly entire, % to 1% inches long ; petioles 4 to 6 lines long ; 

 racemes short and rather dense ; petals narrowly oblong, or somewhat cuneate at 

 base, 4 to 6 lines long ; calyx tomentulose, white-hairy or glabrous ; fruit purplish, 

 2^ to 3 lines in diameter. 



Rocky mountain slopes, canon sides or along streams : mountains of southern 

 California and the Sierra Nevada, 2500 to 8500 feet; Coast Ranges, 100 to 6000 

 feet. North to Alaska, east to the Rocky Mts. May-June, f r. July-Sept. 



