; ARALIACE^ CORNACEjE. ^ 93 



* • Umbel single, ore along peduncle. Styles 9 or 3. 



4. A.- quinquefo'lia, Decaisne. (Ginseng.) Leaves in a 

 whorl of 3 at the summit of the stem, the latter a foot high. 

 Leaflets mostly B, long-stalked. — Rich woods. 



5. A. trifo'lia, Decaisne. Stem 4r-6 inches high. Leaves 

 in a whorl of 3 at the summit, but the leaflets usually , only S, 

 and sessile. — Rich woods. 



OnDEB XLV. CORtfA'CE.^. (Dogwood Family.) 

 Shrubs or trees (rarely herbs) with simple leaves. Calyx- 

 tube adherent toithe 1-2-oelled ovary, the limb of the calyx 

 inconspicuous. Petals and stamens all epigynous. Style 1 , 

 stigma flat or capitate. Fruits a 1-2-seeded drupe. 



Synopsis of (lie Ciriiera. 



1. Coruiis. Flowers perfect (the parts in fours), either forming 



cymes, or in close heads surrounded by a showy involucre 

 resembling a corolla. Leaves mostly opposite. 



2. Nyssa. Flowers dioeoiously polygamous, the parts iB_ fives. 



Leaves alternate, mostly crowded at the ends of the branohlets. 



1. COK.\US, Tourn. CoKNKL. Dogwood. 

 ^Flowers in a close head, surrounded by a showy involucre of 



h while bracts. Fruit red. \ 



1. C. Canadensis, L. (Bunch-behry.) Stem simple, 

 5 ur 6 inches high. Upper leaves crowded and apparently 

 whorled, ovate, the lower scale-like. Leaves of the involucre 

 ovate. Rich woods. 



2; C. flOP'ida, L. (Flowbking Dogwood.) A small 

 tree, with opposite ovate pointed leaves. Leaves of the in- 

 volucre notched at the apex, very showy. — Rooky woods. 

 South-west Ontario. 

 * * Flowers {whiter inflat cymes. No involucre. Fruit blue or white. 



3. C. eireina'ta,. L'Her. (Round-leavbd Dogwood.) 

 A shrub 4-6 foot high, with greenish warty dotted branches. 

 Leaves opposite, broadlg ooal, white-woolly beneath. Fruit 

 light blue. — Rich woods. 



