echinopaxax. CORNACE.E. 271 



CORNU8. 



stylopodium obsolete; styles united to the middle. Shaded mountain ra- 

 vines California. 



Var. acuminata Watson in Herb. Leaflets long acuminate, pedicels 

 10-14 lines long. Mountain streams Southern Oregon. 



2 ECHINOPAXAX Decaisne & Planch, in Rev. Hortic, 1854, 105. 



Densely prickly shrubs with large palniately lobed leaves* 

 and greenish-white flowers in dense paniculate umbels. 

 Calyx-teeth obsolete. Petals 5, valvate in the bud. Stamens 

 5, alternate with the petals: filaments filiform; anthers ovate 

 to oblong. Ovary 2-3-celled : styles 2, filiform : stigma termi- 

 nal. Fruit laterally compressed, drupaceous; endocarp indur- 

 ated. 



E. horriduin Decaisne & Planch. 1. c. Very prickly throughout: 

 stems erect from a decumbent base, 4-12 feet high, leafy at the top : leaves 

 roundish-cordate, prickly both sides, palniately lobed, aculeate-dentate r 

 more or less pubescent beneath, 6-24 inches long: inflorescence terminal, 

 densely tomentose: rays subtended by a scarious laciniately cut bract: 

 petals ovate, with a broad base: styles united to the middle. In moun- 

 tain swamps, Oregon to the arctic regions. 



Order XLV. CORXACE.E Link. Handb. ii, 2. 



Trees, shrubs or rarely herbs with opposite mostly entire 

 pinnately veined leaves without stipules and cymose or capi- 

 tate infloresence, with or without an involucre. Calyx adher- 

 ent to the ovary, the limb 4-5-toothed or lobed, valvate in the 

 bud. Petals distinct, as many as the calyx-lobes and alter- 

 nate with them, inserted on the margin of the epigynous disk,, 

 valvate in the bud : stamens 4-5, inserted with the petals and 

 alternate with them : anthers introrse, mostly cordate. Ovary 

 one-celled with a single pendulous ovule. Style single. Fruit 

 drupelets covered with the remains of the calyx. Seed ana- 

 tropous. Embryo nearly as long as the fleshy albumen. 



1 CORNUS Tourn. (Dogwood) 



Trees, shrubs or herbs with opposite entire leaves and small 

 perfect flowers in dichotomous cymes or involucrate heads. 

 Limb of the calyx 4-toothed, minute. Petals oblong, spread- 

 ing. Filaments filiform. Style subclavate; stigma obtuse or 

 capitate. Drupelets not connate. 



* Flowers greenish or purple, in a close head, surrounded by a con- 

 spicuous involucre of white petal-like bracts : fruit bright red. 



-♦- Low and herbaceous, from slender, creeping root-stocks. 



C. Canadensis L. Sp. i, 118. Stems simple, 4-8 inches high ; leaves 

 scarcely petioled, mostly in an apparent whorl of 4 or 6 near the summit, 

 oval to obovate pointed at both ends, somewhat appressed -pubescent on 

 both sides 2-3 inches long, near the middle of the stem; a pair of smaller- 

 leaves and scale-like bracts balow; psduncles 1-3 inches long : involucral 



