APOCYNE^E. 233 



4. F. juglandifolia Lam.: leaves pinnate; leafets petiolate, ovate, 

 opake, serrate, glaucous beneath ; axils of the veins pubescent ; branch- 

 es smooth ; flowers calyculate. 



HAB. Wet woods. Can., to Car. May. 1>. A small tree. 

 Leafets in 3 pairs. Swamp Ash. 



'* Flowers calyculate, 4-pntalled. Anthers pedicellate. ORNUS. Pers. 



5. F. ornus Linn. : ? leaves pinnate ; leafets broad-ovate, serrate, the 

 terminal one obcordate. Ornus curopea var. ameiicana Pers. O. ame~ 

 ricana Pursh. 



HAB. Shady woods. Md. and Virg. ; rare*. May. 1?. Pursh. 

 A tree with opposite and unequally pinnate leaves. Flowers 

 4 ., ; in panicles resembling those of Chionanthus. Fruit small and 

 winged. <A very obscure plant, concerning which so little is 

 known, that it is impossible to determine whether it is distinct 

 from the foreign F. ornus, or a mere variety. It is certain, how- 

 ever, that the genus Ornus of Persoon is not sufficiently distinct 

 from Fraxinus. Flowering Ash, 



ORDER LXXVI. APOCYNE^E. Juss. Lind. 



Calyx divided in 5, persistent. Corol monopetalous, hypo- 

 gynous, regular, 5-lobed, deciduous ; aestivation contorted- 

 imbricate. Stamens 5, inserted on the corol, alternate with 

 its lobes ; filaments distinct ;' anthers 2-celled, bursting lon- 

 gitudinally ; pollen granular, globose, or 3-lobed, immediately 

 applied to the stigma. Ovaries /3, or 1 2-celled, many- 

 seeded ; styles 2 or 1 ; stigma 1. Fruit a follicle, capsule, or 

 drupe or berry, double or single. Seeds indefinite or rarely 

 definite ; albumen fleshy, cartilaginous, or horny, rarely want- 

 ing ; embryo foliaceous ; radicle turned. to the hiJum. 



Plants with usually a milky juice. Leaves entire, general* 

 ly opposite. 



1. APOCYNUM. Unn. 



Calyx very small, 5-cleft, persistent. Corol campanulate ; 

 border with 5 short spreading or revolute lobes ; the base fur- 

 nished with 5 glandular teeth alternating with the stamens. 

 Stamens 5, included. Anthers sagittate, connivent, cohering 

 to the stigma by the middle. Ovaries 2 ; style obsolete; stig- 

 mas dilated, conic at the apex. Follicles long, distinct. 



Pentandria. Digynia. 



1. A. androsccmifoUum. Linn. : leaves ovate, smooth onboth sides ; 

 cymes lateral and terminal, smooth; tube of the corol longer than the 

 calyx. ' > 



20* 



