310 DICOTYLEDONOUS. 



base of the perianth. Ovary superior, 2.colled, with solitary, 

 pendulous ovules. Stigmas 2, distinct. Fruit l-2.celled, 

 membranous, or drupaceous. Seed solitary, pendulous. — 

 Trees or shrubs. 



Genus I ULMUS. 



Floivers perfect. Perianth cimpanulate, 4-5-clefl:. Sta- 

 mens 5-8. Styles 2. Fruit compressed, with a broad mem- 

 branaceous border. 



1 U Amekicaxa. a large tree, with smooth, gracefully recurved branch- 

 es. Leaves alternate, lanceolate, oblique, doubly serrate, with the serratures 

 unctuate. Flowers 5-10 in a fascicle, pedicillate. Fruit fimbriate. Styles 

 '2, short. Fruit 1-seeded, surrounded by a large, membranous wing. 



TVkite Elm. 

 h Feb.— March. Rich soils. 40-100. 



2 U FuLVA. A small tree. Leaves large, oval, doubly serrate, rough' 

 sometimes slightly cordate, acuminate, pubescent. Flowers nearly sessile* 

 Sta77iens 5-7. Stigmas purple. Buds tomentose. Fruit pubescent. 



}2 Feb.— March. In fertile lands. 20-30 ft. 



3 U Alata. a middle sized tree or shrub, with a cork like excrescence 

 on opposite sides of the branches. Lf-ave nearly sessile, oblong-lanceolate, 

 doubly serrate. Samara pubescent, ciliate. 



T^ Feb— March. Fertile soils. 10-30 ft. 



Genus II PLANER A. 



Flowers '^crfect. Perianth campanulate, 3-5.cleft. Stig- 

 mas 2. Nut 1-seeded. rouo;hened. 



1 P Gemelini. A middle 5-ize tree. leaves ovate, acute, glabrous, ser- 

 rate, i^/oujftrs axillary, generally by threes. Perianth 3-5 cleft. Stamens 

 3-5. Stifrmat 2, plumose. Nut roughened. 



T2 Feb.— March. River swamp?. 30-40 ft. 



Genus III CELTIS. 



Flowers perfect. Perianth 5 or 6 parted. Stamens 5 or 6. 

 Styles 2, expanding. Drupe small, purple. 



1 C Occidentalis. a large tree Leaves ovate, acuminate, serrate, une- 

 qual at the base-, pubescent beneath. Flowers small. Fruit a small berry, 

 with a sweet pulp. 



h April— May. Rich soils. 80-80 ft. 



Order CXXXVII. ARTOCARPEJE. 



Flowers moncecious, in aments or heads. Perianth usually 

 divided, sometimes tubular, or entire. Stamens 4, straight. 

 Ovary 1 or 2 ci'lled, with a suspended ovule. Style 1, fili- 

 form. Stigma bifid. Fruit a fleshy receptacle, covered by 

 numerous nuts. Seed suspended, solitary. Trees or shrubs. 



Genus I MORUS. 



Genus same as the order. 



