MONOPETALOUS EXOGENOUS PLANTS. 451 



the bud, sometimes wanting; stamens 2-7; ot'ar?/ 2-celled, 

 with 2 suspended anatropous ovules in each cell; style 

 single or none ; fruit 1-2-seeded ; embryo straight, in hard 

 albumen. 



SYNOPSIS. 



Tribe I. Oleineae. Fruit a drupe or berry. Floivers 

 with both calyx and corolla. Leaves simple, entire. 



Flowers polygamous. Corolla salver-formed with short lobes Olea. 



pe7'fect. wheel-shaped^ with elongated lobes Chionanthus. 



Tribe II. Fraxineae. Fruit a samara. Flowers 

 dioecious, apetalous. Leaves pinnate. 



Flowers in lateral and terminal panicles. Calyx minute or rarely wanting. Trees. 



Fraxinus. 



Tribe III. Forestiereae. Fruit a drupe. Floiuers 

 dioecious or perfect, apetalous. Leaves simple. 



Flowers mostly dioecious, from scaly axillary buds. Shrubs Fobestiera. 



OLEA, Tourn. Olive. 



Calyx 4-toothed ; corolla short-salver-form, 4-lobed ; 

 stamens 2 ; style short ; stigma globose or 2-lobed ; dru2)e 

 mostly 1-seeded, oily. — Trees or shrubs, with opposite cori- 

 aceous entire leaves, and small white fragrant flowers, in 

 axillary racemes or panicles. 



0. A MERICANA, L. Smooth ; leaves oblong or obovate- 

 oblong, narrowed into a petiole ; racemes compound, shorter 

 than the leaves ;flotvers polygamo-dioecious, bracted ; drupe 

 ovoid, dark purple. Light soil, near the coast. March and 

 April. — A shrub or small tree, with whitish bark and 

 evergreen leaves ; drupe as large as a pea, bitter and astrin- 

 gent. 



