66 OOENACB2B. 



compound umbels; the inferior ovary surmounted by a disk which bears 6 petals and 5 

 tamens: styles 2. The plants of this order are not here described. 



CORNACE^E. 



Flowers in cymes or heads: petals 4: style 1: ovary 2-celled . 1 



Flowers dioecious, in drooping blue-gray catkins: petala none: styles 2 2 



1. CORNTJS, Linnaeus. 



Flowers in a head with involucre of 4 to 6 large white petaloid bracts 1, 2 



Flowers yellowish in sessile umbels appearing before the leaves: bracts 4 3 



Flowers white or cream-color in many-flowered cymes 4 to 7 



1. C. Canadensis, L. Herbaceous, 3 to 8 inches high: leaves in a whorl at top. 



2. C. Nuttallii, Audubon. A tree: involucre often tinged with red. (Dogwood.) 



3. C. sessilis, Torr. Bark green: leaves pale and silky beneath: pedicels cilky. 



4. C. Californica, C. A. Meyer. Branches purplish: leaves ovate: cyme round-topp'd. 



5. C. pubescens, Nutt. Similar: leaves rarely ovate: cyme larger: fruit white. 



6. C. glabrata, Benth. Bark gray: leaves acute at each end: cymes small, flat. 



7. 0. Torreyi, Watson. Leaves ovate or narrower, acute: cyme loose: fruit white. 



2. GAURYA, Douglas. 



Leaves undulate, base obtuse, tomentose beneath 1 



Leaves not undulate, acute at each end 2, 3 



1. Or. elliptica, Dougl. Sterile aments 2 to 5 inches long, often clustered. 



2. G. Fremonti, Torr. Petioles 4 to G lines long: aments solitary, 2 or 3 inches long. 



3. G. buxifolia, Gr. Smaller, 2 to 5 ft. high: leaves 1 to 1 inches long, silky beneath. 



DIVISION II. GAMOPETAL^E. 

 CAPRIFOLIACE.E. 



1. Corolla regular, rotate: style short; stigmas S to 6 -.flowers in cymes. 



Shrub or tree: young stems thick, pith large: leaves pinnate .. . 1 



Slender shrub: leaves simple: fruit a drupe: seeds flat 2 



2. Corolla tubular and irregular or campanulate: stigma 1, capitate. 

 A creeping herb with pendulous flowers in pairs 3 



