EUPHORBIACE^. 47 



extrorse : cells free, hanging from the top of the filament, usually oblong-contortuplicate. 

 Styles 3, multifid (rarely bifid) : branches setaceous. Capsule 3-coccous. Seeds minute, 

 subglobose : caruncle none, or obsolete. — Leaves usually serrate, stipulate ; spiciform ra- 

 cemes, or spikes, axillary or terminal, the 9 sometimes reduced to a cluster: flowers mi- 

 nute, S bracts several-flowered, $ often excrescent, cucullate, crenate. 



§ 1. Dicecio/is shrubs ; $ flowers in spiciform racemes, ? glomerate. 



77. A. betulifolia, Sw. Branchlets puberulous ; leaves oval-roundish, or oval, rounded 

 at the base, shortly petioled, crenate or crenate-serrate, glabrous, with the midrib puberu- 

 lous beneath, as long as the glabrous $ racemes ; 9 flowers axillary, few in the cluster : 

 bracts cucullate-roundish, divided into 4-9 large, ovate, glabrous teeth ; seeds ovate, blunt. — 

 A dioecious shrub, l'-2' high ; leaves 16'" -4'" long ; seeds i'" long : caruncle obsolete. — Hab. 

 Jamaica !, M'Nab, Wils., AL, in the southern limestone districts. 



78. A. scabrosa, Sw. Branchlets pubescent ; leaves ovate or lanceolate, cuneale at 

 the base, serrate or crenate-serrate, pubescent, chiefly beneath, or glabrescent, nearly as 

 long as the subsessile, hispidulous $ racemes ; ? flowers axillary, few in the cluster : bracts 

 cucullate, divided into 4-9 large, ovate, ciliate teeth; seeds subglobose. — A- dioecious, vari- 

 able shrub, 12'-2' high; leaves 2"-l" long, 10"'-4'" broad: petiole 4"'-2'" long; seeds 

 ovoid-subglobose, \ w long, ecarunculate. 



a. Leaves lanceolate, or oblong-lanceolate, with a bluntish point. 



#. ovata. Leaves ovate, blunt, glabrescent. 



Hab. Jamaica !, all collectors, in the southern limestone districts, and on the seashore. 



§ 2. Mojicecious shrubs ; $ flowers in spiciform racetnes, ? spicate. 



79. A. virgata, L., Sw. 1 Branchlets puberulous ; leaves oblong-lanceolate or elliptical, 

 pointleted, obtusely serrate, glabrous j racemes and spikes axillary, filiform, shortly pedun- 

 cled, $ superior, or usually on distinct branches ; $ bracts cucullate, roundish, toothed: 

 teeth ovate.- — Br. Jam. t. 36./. 2. — A monoecious shrub, about 15' high; leaves 4"-2V' 

 long, l^"-2" broad, usually exceeding the racemes : petiole 4"'-8"' long : stipules shortly 

 subulate, caducous. — Hab. Jamaica!, Sw.,WHs., March. 



80. A. elliptica, Sw. Branchlets glabrescent ; leaves elliptical-oblong or elliptical-lan- 

 ceolate, acuminate, obtusely serrate, glabrous or glabrescent, long-petioled ; racemes and 

 spikes axillary, long, filiform, peduncled, superior $ or androgynous or on distinct branches ; 



? bracts cucullate, cuneate at the base, palmatifid to the middle, at length toothed by growth 

 of the inferior part : lobes oblong. — Leaves 7"-3" long, 2V-1" broad, subglandular above 

 at the base : petiole 2"-l J" long : stipules shortly subulate ; racemes hairy or glabrescent, 

 8"-3" long, slender, nearly as long or half as long as the leaves. — Hab. Jamaica I, Pd., 

 Hist., in the mountains. 



81. A. hernandifolia, Sw. Branchlets glabrescent, leaves ovate, pointed, serrate, gla- 

 brous, long-petioled, 5-nerved at the emarginate base ; racemes and spikes axillary, filiform, 

 shortly peduncled, $ and <j? on distinct branches; $ bracts cucullate, roundish, denticulate: 

 teeth minute, 3-angular. — A monoecious shrub, 6' high ; leaves 6"-2" long, 3"-l" broad : 

 petiole 3"-l" long : stipules broadly semicordate-subulate, caducous ; racemes 6"-2" long, the 



? spikes either inferior or superior. — Hab. Jamaica!, Pd., AL, in woods, e.g. S. Ann's; 

 S. Vincent!, Guild.; [Cuba!, Venezuela!]. 



82. A. villosa, Jacq. Shrubby ; branchlets pubescent ; leaves ovate, pointed, serrate, 

 hispidulous chiefly on the nerves beneath, long-petioled ; stipules subulate ; $ racemes filiform, 

 on distinct branches, and $ spikes exceeded by the leaves; ? bracts cucullate, roundish, 

 toothed, small, nearly as long as the ovary, not excrescent: teeth ovate. — Jacq. Amer. Pict. 

 t. 240.— 16' high ; leaves 5"-6" long, 2"-3" broad : petiole H"-5" long ; stipules 4'" long ; 

 racemes and spikes 3"-4" long, shortly peduncled : $ flowers distant from each other. — 

 Hab. Jamaica!, Wils., S. Thomas in the East; [Panama!, New Granada]. 



83. A macrostachya, Jacq. Branchlets glabrescent ; leaves large, elliptical, pointleted, 

 serrate or obtusely denticulate, repand, glabrous : stipules long, rigid-membranaceous, con- 

 cave-lanceolate, acuminate; racemes and spikes axillary, long-filiform, shortly peduncled; 

 ? bracts hairy, cucullate, exceeded by the styles, toothed: teeth linear, pointed. — Jacq. 



Schcenbr. t. 245.— A monoecious shrub ; leaves 10"-6" long, 5"-2£" broad : petiole 2"-li" 



