288 THE FLORA. 



c The 5 filaments distinct. Pollen masses r>. N.-Y. PERirLo"oA. 



c Filaments united as well as the stigmas. Pollinia 10. Gonol'obus. 



d Petals spreading. Hoods erect. Leaves linear. Coast, S. Sente'ra. 



d Petals spreading. Hoods flat, spreading, t Wax-plant. Hoy'a. 



d Petals erect, white. Hoods erect, 2-awned. S.-W. Common. Ensle'nia. 



ASOLE'PIAS. Silk-grass. Milkweed. 



(We have many species of this genus, blooming in the Summer montlis. Begin 

 oers will find them difficult to distinguish. We omit them here, referring the rcades 

 to the Class Book.) 



Order XCIX. OLEACEvE. Oliveworts. 



Trees and shrubs with opposite leaves^ with 



flowers 4-parted, regular, sometimes without petals ; 



corolla (when present) valvate in the bud; stamens 2, rarely 4; 



ovary 2-celled, with 2 ovules in each cell; fruit fleshy or dry. 



Analysis of the Genera. 



% Leaves pinnate. Fruit a dry, winged samara a 



§ Leaves simple. Fruit a dry, 2-celled pod (capsule) b 



§ Leaves simple. Fruit a fleshy drupe or berry 2 



2 Corolla present. Stamens included. White.... c 



2 Corolla present. Stamens exserted d 



2 Corolla none. Fruit an oblong drupe e 



a Trees with imperfect flowers and odd-pinnate leaves. Ash. Frax'ind8. 



b Corolla salver-form, with short, white or purple lobes, t Lilac. Syrin''ga. 1 



b Corolla bell-form, with long, yellow lobes, t Forsythia. Forsy'thia. 



c Corolla with long, linear, pendulous lobes. Virginia Fringe-tree. Chionan^thus. 

 c Cot. with short lobes. Panicle dense. Berries black. Pnvet. Prim. Ligus'trum. 



d Style 2-parted. Leaves serrate. Shrubs, t Osmanth. Osman'thus. 



d Style simple. Panicles axillary. S. American Olive. Olea. 



d Style simple. Panicles terminal. Trees, t Visian. Visia^a. 



e Flowers very imperfect, dioecious. Shrubs. Wet. W. S. Adelia. Foeesti''era. 



SYKIN'GA. LUac. 



.1 S. vulga'ris. Common L. Leaves cordate-ovate, entire. Flowers lilac-purple. 



2 S. al'ba. White Lilac. Flowers pure white. Shrub taller. (Variety of No. 1.) 



3 S. Per-'sica. Persian L. Leaves lanceolate, entire or cleft. Flowers in loosei 



panicles, lilac-blue. Apr. May. 



