546 



CXLII. OLETNEiE. 



Olive. 



Fruit cut, showing 



the stone. 



Olive. 

 iOlea europcea,) 



Olive. 

 C^yx ^nd pistil. 



Olive. 



Berry cut vertically 



(mag.). 



Corolla 4-merous, monopetalous or sub-polypetalous, hypogynous, anisostemonous, 

 (estivation valvate. Stamens 2, inserted on the corolla. Ovakt 2-ceUed ; ovules 

 pendulous, anatropous. Ebuit a capsule, herry or drupe. Embkto albuminous, axile ; 

 EADiCLB superior. — Stem woody. Leaves opposite, 



Tbees or SHEUBS. Leaves opposite, petioled, simple or rarely imparipinnate, 

 exstipulate. Elowers 5 j rarely dioecious and apetalous, in a raceme or trichotomous 

 panicle, sometimes fascicled, pedicels opposite. Caltx monosepalons, 4-lobed or 

 -toothed, sometimes obsolete. Corolla hypogynous, of 4 petals united at the base 

 in pairs by the filaments, or clearly gamopetalous, infundibuliform or sub-cam- 

 panulate, sestivation valvate, very rarely {Ash, OUve). Stamens 2, inserted on the 

 corolla and alternate with its lobes ; anthers 2-celled, introrse, dorsifixed, dehiscence 

 longitudinal. Ovaet free, 2-celled, cells alternating with the stamens ; style simple 

 or ; stigma undivided or 2-fid ; ovules collateral, pendulous from the top of the 

 septum, rarely 3 with the 2 lateral arrested (Ash), sometimes numerous, 2-seriate 

 (Forsythia), anatropous, raphe dorsal, Fruit various : either a drupe and often 

 1-celled and -seeded (Olive), or a 2^celled berry (Privet), or a loculicidal capsule 

 (Lilac), or an indehiscent samara prolonged above into a foliaceous wing (Ash). 

 Seeds pendulous, generally more or less compressed. Embryo straight, in the axis 

 of a thick fleshy or sub-horny albumen ; cotyledons foliaceous ; radicle cylindric, 

 superior. 



Sub-order I. OLEiNBiE Verje. — Fruit a drupe or berry. 



» Olea. 



* Ohionanthus. 



PEINCIPAL geneka. 

 Linociera. Notelsea. * Phillyrea. • Ligustrum. 



SuB-ORDEE II. Fraxine^. — Fruit an indehiscent samara or a 2-valved loculicidal 

 capsule. 



* Fraxinus. 



PEINCIPAL GENERA. 

 * Syringa, * Forsythia. 



' Fontanesia. 



