APOCYNACE^E. 231 



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

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



*** Flowers calculate, 4-petalled. ORNUS. Pers. 



5. .F. Ornus Linn. : leaves pinnate ; leafets in 3 1 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 LXXYIII. 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. Linn.-Dog's Bane. 



(From the Greek <i~o y far from, and jm.>r, a dog ; it being supposed to poison 

 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.androscemifolium 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 Miss. June, July. 2|. *1em 

 2 3 feet high, erect, smooth, with numerous spreading branches Lcavm on 

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

 ing. Medicinal. Biff. Mcd. Bol. ii. 148. Common Dot;'* Ran?. 



2. A. cannabinum L ; nn.: 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 Mis*. July, Aug. 1J-. Stem 2 4 

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

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

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



