310 OLACINE^. 



hypogynous. Ovary superior, 4(-3-5)-celled below: ovules as many as there are cells, hang- 

 ing from the central placenta. — Flowers in axillary racemes, corymbs, or clusters. 



1. X. americana, L. Leaves elliptical; flowers racemose or corymbose;. petals 4; 

 drupe oval or oblong.— Jacq. Amer. Pict. t. 107 ; Tuss. Fl. 3. t. 30 ; Desc. Fl. 2. t. 132.— 

 X. multiflora, Jacq. X. aculeata, Tuss. X. moutana, Macf. X. inermis, L. X. sene- 

 galeusis, Rich. — A tree, usually spiny ; leaves mucronate or blunt; petals oblong, white, 

 odorous, internally villous. — HaB. Jamaica !, Macf. ; S. Vincent !, Guild. ; [Florida ! to 

 Buenos Ayres ! ; trop. Africa! ; East Indies]. 



2. HEISTERTA, L. 



Calyx at length much enlarged, spreading. Petals 5. Stamens 10, all fertile. Ovary 

 of Ximenia. — Trees; flowers fascicled, clustered, or single in the axils. 



2 H. coccinea, Jacq. Leaves oblong, acute ; flowers single, pedicellate ; calyx at 

 length red, obsoletely 5-lobtd : lobes rounded ; petals distinct. — Jacq. Amer. Pict. 1. 122 — 

 Calyx 1" diaui. around tlie oblong drupe ; flowers white. — Hab. Dominica !, Imr. ; [Marti- 

 nicpie]. 



3. SCIKEPFIA, Schreb. • 



Calyx adnate : limb truncate, obsolete. Corolla sympetalous, 5 (-4-6) -fid. Stamens epi- 

 petalous, opposite to the corolla-lobes. Ovary semi-inferior, 3-celled from copious tissue : 

 ovules 3, banging from the central placenta, filling up the cavities. — Shrubs ; flowers usually 

 clustered in the axils : involucel 'S-4sfd. 



3. S. arborescens, M. S. Leaves ovate-oblong, bluntly acuminate, rounded above the 

 contracted base ; corolla-tube campanulate : lobes thrice snorter, rcflexcd, ovate, blunt, in- 

 ternally pubescent; drupe ovoid (5"' long). — Codonium, V. S. americana, W. — Leaves 

 2"-3^" long, shining.— Hab. Jamaica \,'Jl. ; Antigua!, Nichols., Wullschl., Montserrat, 

 Dominica !, Imr. ; [S. Croix, Guadeloupe !]. 



4. S. Marchii,. Gr. (n. sp.). Leaves elliptical, pointed or bluntish, acute at the base ; 

 corolla-tube campanulate : lobes thrice shorter, reflexed, deltoid, pointed, internally gla- 

 brous ; drupe ovoid (3"' long). — Very similar to the preceding, but distinguished by its 

 smaller fruit. Leaves 1 j"-2" long ; clusters equalling the petiole : pedicels fascicled, as long 

 as the glomerate (3-1) flowers; corolla IV" long, thrice as long as the calyx ; anthers ovoid- 

 globose, emarginate, subsessile at the throat, included, covering (as in the preceding) a 

 small tuft of bristles on the base of the lobes; style simple, shorter than the corolla-tube; 

 drupes (black in drying) 1-seeded: blunt top free from the calycine covering. — Hab. Ja- 

 maica \, March ; [Cuba!, in woods at Matanzas, Rugef], 



14. MAPPIA, Jacq. 



Calyx minute, 5 (-4) -dentate, not enlarged. Petals 5 (-4), distinct, villous within. Sta- 

 mens 5 (-4), alternate with the petals, hypogynous : filaments long. Ovary superior, sur- 

 rounded by a cupuliform disc, 1-celled : ovides 2, hanging from its summit : style short, 

 suboblique : stigma obscurely lobed. — Shrubs ; flowers in axillary, peduncled, compound, 

 small, corymbiform racemes. 



The Icacinea, to which this genus belongs, may be interpreted by the adhesion of the 

 placenta to the suture of a single carpel ; but, if better understood, they may perhaps prove 

 to approach Cornea. 



5 M. racemosa, Jacq. Leaves lanceolate-oblong, pointed, often porose beneath in 

 the vein-axils, exceeding the panicles ; petals oblong ; stamens included, disc 5-lobed, gla- 

 brous : lobes rounded ; drupe ovate, pointed. — Jacq. H. Schcenbr. 1. 1. 47. — M. affinis, Mrs.!: 

 the form with the leaves not porose, but both leaf-kinds occur on the same branch. Icacina 

 dubia, Macf. .'—6' high ; leaves 4"-6", petals 2'", drupe 8'" long. The anthers are bilocular, 

 ovoid-oolong (not bilobed). — Hab. Jamaica!, Macf, Pd., in woods, Port Royal, S. Anns, 

 Manchester. 



