462 OLACACEAE 



many or 2 or 3 times as many ; G partly sunk in the disc, or free, 

 2 5-loc. at base, i-loc. above, with free plac. and i ovule hanging 

 down into each loc. (occasionally i-loc. i-ovuled). Drupe or nut, 

 one-seeded. Seed with testa and endosp. C hie/ genera : Ximenia, 

 Olax. 



Olacales (BH.). The 8th order of Polypetalae. 



Olacineae (BH., Olacaceae + Icac inaceae P.). Trees and shrubs with 

 usu. alt. 1. and axillary infl. of $or unisexual reg. fls. K, C (4 5 6), 

 A 4 10, rarely 12, G free or partly in disc, (3 5), i- or multi-loc. 

 with few ovules. Drupe i -seeded. Endosp. 



Olax L. Olacaceae. 35 palaeotrop. 



Oldenburgia Less. Compositae (12). 3 Cape Colony. 



Oldenlandia L. (incl. Hedyotis L.). Rubiaceae (i. 2). 180 trop. Some 

 are heterostyled (dimorphic). 



Oldfieldia Hook. Euphorbiaceae (A. I. i). i trop. W. Afr. , O. afri- 

 cana Benth. et Hook, f., the African oak. Good timber. 



Old maid (W.I.), Vinca rosea L. ; -man, Artemisia Abrotanum L.; 



- - 's beard, Tillandsia; --cactus, Cereiis senilis Salm-Dyck; 



- woman's bitter (W.I.), Picramnia ; - witch grass (Am.), Panicum 

 capillare L. 



Olea (Tourn.) L. Oleaceae. 35 Medit., S. Afr., E. Ind., Austr., 

 Polynes. O. europaea L. (olive), cult, in Medit. region from early 

 ages. The wild form has thorny twigs and a small fr., the cult, form 

 (var. saliva DC.) is smooth and has a large drupe with oily flesh. The 

 oil is obtained by bruising and pressing the fruit. Several yield good 

 timber, e.g. the olive, O. laurifolia Lem. (S. Afr. ; black ironvvood), &c. 



Oleaceae (EP., BH.}. Dicots. (Sympet. Contortae; Gentianales BH.). 

 21 gen., 400 sp., trop. and warm temp., esp. E. Ind. Shrubs and 

 trees usu. with opp. L, which are exstip., simple or pinnate, often 

 entire. Serial accessory buds occur in the leaf-axils of many sp. 

 (e.g. Syringa) in both fig. "and veg. parts. The infl. is racemose or 

 cymose, often bracteolate. Fls. ? , rarely unisexual, reg., 2 6-merous, 

 sometimes poly- or a-petalous (Fraxinus, &c.). K typically (4), 

 valvate ; C (4) valvate or imbr., rarely conv. ; A 2, epipet. usu. 

 transv. placed, and alt. with cpls. ; no disc; G (2); stigma 2-lobed 

 on simple style ; ov. 2-loc. with 2 anatr. ov. in each loc. Berry, 

 drupe, or caps., or schizocarp, with i 4 seeds. Endosp. or none, 

 embryo straight. Olea, Fraxinus, &c. , are of economic value. 



Oleander, Neriitm Oleander L. 



Oleandra Cav. Polypodiaceae. 10 trop. 



Olearia Moench. Compositae (3). 90 Austr., N.Z. , New Guinea. 

 Replaces Aster, and closely resembles it, but all trees or shrubs. 



Oleaster, Elaeagnus, Olea. 



Oleiferus (Lat.), oil-bearing. 



Oleine, Cocos. 



Oleoxylon Roxb. Dipterocarpaceae. i Burma. 



Oleraceus (Lat.), esculent. 



Olibanum, Bosiuellia Carteri Birdw., c. 



Oligandra Less. Compositae (4). 3 trop. S. Am. 



Oliganthes Cass. Compositae (i). ' 8 trop. Am. 



Oligarrnena R. Br. Epacridaceae (3). i W. Austr. 



