CORNACEJ;. 57 



very large and decompound ; leaflets ovate-cordate, doubly ser- 

 rate. Roots aromatic. Rich woods. 



2. A. his'pida, Michx. (BRISTLY SARSAFARILLA. WILD 

 ELDER.) Stem 1-2 feet high, bristly, leafy, somewhat shrubby 

 at the base. Umbels 2-7, corymbed. Leaves twice-pinnate. Leaf- 

 lets sharply serrate. Fruit black. Rocky or sandy woods. 



3. A. nudicaulis, L. (WILD SARSAPARILLA.) True stem very 

 short, sending up a naked scape bearing 3 or 4 long- ped uncled 

 umbels at the summit, and one long-petioled leaf, ternately 

 divided, and with 5 leaflets on each division. Root horizontal, 

 aromatic. Rich woods. 



* * Umbel single, on a long peduncle. Styles % or 3. 



4. A, qilinquefolia, Decaisne. (GINSENG.) Leaves in a whorl 

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

 mostly 5, long-stalked. Rich woods. 



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

 whorl of 3 at the summit, but the leaflets visually only 3, and 



>. Rich woods. 



ORDER XLIV. CORNA'CE^l. (DOGWOOD FAMILY.) 



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

 adherent to the 1-2-celled ovary, the limb of the calyx incon- 

 spicuous. Petals 4. Stamens 4, all epigynous. Style 1 ; stigma 

 flat or capitate. Fruit a 1-2-seeded drupe. Flowers in cymes or 

 in close heads, surrounded by a showy involucre resembling a 

 corolla. The only common Canadian genus is 



CORNUS, Tourn. CORNEL. DOGWOOD. 



* Flowers in a close head, surrounded by a showy involucre of k white bracts. 

 . Fruit red. 



1. C. Oanadensis, L. (BUNCH-BERRY.) Stem simple, 5 or 6 

 inches high. Upper leaves crowded and apparently whorled, 

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

 Rich woods. 



2. C. florida, L. (FLOWERING DOGWOOD.) A small tree, with 

 opposite ovate pointed leaves. Leaves of the involucre notched 

 at the apex. Rocky woods. South-westward. 



