•272 CORNACE^. coknus. 



bracts 4, white or crearri-color, ovate, 3-8 lines long : fruit globular : stone 

 emooth, not flattened, a little higher than broad. In the higher rnoun- 

 tains and along the coast, across the c6ntinent as far north as forests grow, 

 south to California and New Jersey. 



C. Snecica L. 1. c. Stems sometimes branching . above, 5-20 inches 

 Mgh : leaves sessile, all opposite, becoming smaller downwards, ovate or 

 oval, acute, nerves all arising at or near the base, appressed-pubescent on 

 both sides, uppermost leaves 1-3 inches long : peduncle 1-S inches long : 

 involucral bracts 4, white or cream-color, ovate 3-6 lines long: flowers dark 

 purple: fruit globrjar: stone flattened, mostly with a shallow furrow on 

 ■each face, acute,' as broad as high. Alaska and across the continent : per- 

 haps N. Washington. 



: -1- +- Shrubs or trees. 



C. Nuttallii Audubon Birds 467, T. & G. Fl. i, 652. A tree 20-75 feet 

 high : leaves mostly obovate, on petioles 3-12 lines long, usually wooly- 

 pubescent beneath, with intermixed appressed hairs: involucral bracts 

 4-6 or more, narrowly oblong to obovate or even round, obtuse, 1^-2 

 inches long : heads of flowers 6-12 lines in diameter : fruit crowded among 

 the abortive ovariesi crowned with the broad persistent calyx : stone 4-5 

 lines high, 3-4 lines broad. Brit. Columbia to California west of the 

 ■Cascade Mountains. 



* * Flowers yellowish, in sessile umbels, appearing before the 

 leaves, involucrate with 4 small deciduous bracts. 



C. sessills Torr. Durand PI. Pratt 89. Shrub 10-15 feet high with 

 •greenish bark : leaves short-petioled, approximate, ovate, short acuminate, 

 nearly smooth above, pale beneath, with appressed and silky pubescence: 

 umbels terminal but becoming lateral by the development of the shoot : 

 involucral t)racts 3-4 lines long, about as long as the slender silky pedicels : 

 fruit oblong, 6-7 lines long, 3-5 lines wide : stone oblong somewhat pointed 

 and longitudinally rigid, 4-5 lines long, 2-2J^ lines broad. Northern Cali- 

 fornia, perhaps reaches our limits. 



» * « Flowers white or cream-colored, cymose, not involucrate: 

 fruit white, lead-colored or blue : leaves opposite. 



C. pubescens Nutt Sylv. iii, 54. Shrub 6-20 feet high with smooth 

 Ted or purplish slender branches branchlets and inflorescence more or 

 less hirsute : petioles 3-12 lines long ; leaves from narrowly to broadly 

 ovate or oval, acute or somewhat accuminate mostly acute at base; ap- 

 pressed-pubescent or glabrous above, whitish silky-pubescent beneath 

 flowers in more or less compact cymes; calyx-teeth minute: 

 fruit white; stone somewhat compressed, mostly oblique, 

 -with a more or less prominently furrowed edge about 2 lines long by 2% 

 lines broad, the sides apt to have more or less prominentridges In alluvial 

 places, Brit. Columbia to California west of the Cascade Mountains. 



C. Baileyl C. & E .Bot. Gaz. xv. 89. Erect shrub with reddish-brown 

 mostly smooth branches : branchlets and inflorescence pubescent to woolly : 

 petiole 6-12 lines long; leaves from lanceolate to ovate, acute or a^hort^^ 

 acuminate, acute or obtuse at base, appressed-pubescent to ^gltibrous 

 above, white beneath and with woolly hairs variously intermingled with 

 appressed ones : flowers in small rather compact cymes : calyx-teeth" from 

 small to prominent ; fruit white or bluish : stone decidedly compressed, 

 flat-topped rarely oblique, with a very prpminently furrowed edge, much 

 broader than high. About the Great Lakes and westward to the Cascades 

 of the Columbia. 



C. stolonlfera Michx. Fl. i, 92. Shrub 3-9 feet high, erect or ros- 



