APOCYNACEiE.^ 231 



Wet woods. Can. to Car. May. — Said to be a small tree, but there is still 

 some doubt in regard to its being a distinct species. Swamp Ash. 



*** Flowers calyculate, 4r-petalled. Ornus. Pers. 



5. F*. Ornus Linn. : leaves pinnate ; leafets in 3 — 4 pairs, somewhat 

 petioled, lanceolate, attenuate, serrate at the apex, entire at the base, pu- 

 bescent on the veins beneath ; samara linear-lanceolate, obtuse, attenuated 

 at each end. ^ 



var. latifolia Ait. : leafets ovate-oblong. Ornus Americana Pursh. 



Shady woods. Md. and Virg. ; rare. May. Pursh. — A tree with opposite 

 and unequally pinnate leaves. Flowers in crowded panicles resembling those of 

 Chionanthus. Fruit small and winged. Flowering Ash. 



Order LXXVIII. APOCYNACE^.— Dogbanes. 



Calyx 5-parted, persistent. Corolla regular, 5-lobed, twisted 

 in aestivation. Stamens 5, with the filaments distinct and the 

 anthers 2-celled ; pollen granular. .Ovaries 2, distinct or rarely 

 united; styles 2 or 1 ; stigma 1. Fruit usually a follicle, sin- 

 gle or double. Seeds with fleshy albumen. — Trees or shrubs, 

 usually milky. Leaves entire, mostly opposite, without stipules. 

 Flowers in cymes or panicles. 



APOCYNUM. Li7in.— Dog's Bane. 



(From the Greek a-rro, far from, and kvcov, a dog ; it being supposed to poifion 

 that animal.) 



Calyx 5-parted. Corolla campanulate, 5-cleft ; the base of 

 the tube furnished with 5 triangular scales, alternating with the 

 lobes. Stamens 5, included. Anthers sagittate, connivent, ad- 

 hering to the stigma. Ovaries 2, oblong. Stigma nearly sessile, 

 ovoid, obscurely 2-lobed. Follicles slender, elongated, cori- 

 aceous. Seeds comose. 



1. A. androscBmifolium Linn.: leaves ovate, mostly obtuse at base, smooth 

 above, slightly pubescent beneath ; cymes lateral and terminal, few-flow- 

 ered ; tube of the corolla longer than the calyx. 



Fields, &c. Subarct. Amer. to Car. W. to Mis?. June. July. %■ — Stem 

 2 — 3 feet high, erect, smooth, with numerous spreading branches. Leaves on 

 short petioles. Flowers in loose paniculate cymes, pale-red, with the limb spread- 

 ing. Medicinal. Big. Med. Bot. ii. 148. Common Dog's Bane. 



2. A. cannabinum Linn. : leaves on short petioles, lanceolate or lance- 

 oblong, acute at each end, smooth above, slightly pubescent beneath ; cymes 

 paniculate, many-flowered ; calyx as long as the tube of the corolla ; limb 

 erect. 



Fields and woods. Can. to Car. W. to Miss. July, Aug. %. — Stem 2 — i 

 feet high, mostly erect, branched. Lower leaves sometimes cordate at base. 

 Flowers small, greenish-white, in terminal cymes. It has the leaves narrower 

 and the flowers smaller than in the preceding. Indian Hemp. 



