EUPHORBIACE^ 49 



SUBTRTBE 6. HIPPOMANEM— Inflorescence centripetal, spidform : <J tracts usually 

 several-flowered. Flowers apetalom or naked : calyx imbrioative or none. Stamens cen- 

 tral. Seeds either carunculate or included toithin a dissolving outer integument. 



29. MICROSTACHYS, Juss. 



Flowers monoecious. Calyx 3-partite. Stamens 3, distinct : anthers globose, extrorse. 

 %te 3, simijle. Capsule 3-cocoous. Seeds oblong, carunculate. — Habit i/ Tragia ; S ra- 

 cemes spidform, lateral: bracts distichous, sub-i-flowered : ? flowers supra-axillary, sub- 

 solitary, shortly pedicellate (or racemes androgynous, ^ at the base). 



The lateral inflorescence is apparently due to an adhesion of the peduncle to the axis. 



89. IQ. comiculata, /aji. Annual, subpilose, glabresceut; leaves ovate, acuminate, 

 or lanceolate, subcordate at the eglandular base, minutely serrulate : serratures inconspicuous ; 

 racemes filiform, nearly as long as the opposite petiole; cocci 4 (-6) -spurred ; spurs subu- 

 late, divergent, 2 superior, 2 inferior. — Vahl, Eclog. t. 19.— Tragia, V. Cnemidostachys 



. Vahlii, Sp-. C. glabrata. Mart. M. guianensis, Kl. — Leaves variable in breadth, glabrous 

 above ; caruncle scutelliform. — Hab. Trinidad !, Lockh., Pd., Cr., in waste places ; [Vene- 

 zuela!, Guiana!, Brazil!]. 



30. SAPIUM, Jacq. 



Flowers monoecious. Calyx g bifid or 3-4-dentatej ? trifid or 3-dentate. Stamens 

 2 (-3), monadelphous at ttie base, exserted: anthers globose, extrorse. Style 3(-2)- 

 fid : branches simple. Capsule 3-coccous. Seeds subglobose, ecarunculate : exterior integu- 

 ment persistent, rugulose. — Woody plants ; leaves smooth, usually glanduliferous : stipules 

 caducotis; racemes s/dciform, terminal or lateral, glanduliferous, primordial $ , suc- 

 ceeding ones androgynous, ? flowers at the hose : $ bracts with a cluster of & or many 

 flowers. 



90. S. aucuparium, Jacq. Arboreous ; leaves lanceolate-oblong, oblong, or elliptical, 

 glandular-denticulate or snbentire : principal veius numerous : petiole bearing 2 (-4) oblong 

 or ovate glands at or below the top .- stipules triangular-roundish ; racemes filiform, termi- 

 nal; S calyx bifid: filaments 3, diverging from the monadelphous base. — A high, veiy 

 milky tree ; leaves variable. 



a. Leaves pointed, shortly tapering .at both ends ; terminal racemes subsplitary. — Jacq. 

 Jmer. Pict. t. 237 ; Desc. Fl. 3. t. 154. — Hippomane biglandulosa, Aubl. 



iS. Hippomane, Mey. I Leaves pointleted or blunt, rounded at both ends ; terminal ra- 

 cemes usually temate. — Hab. Trinidad!, Cr.; [Guadeloupe !, Venezuela !, Guiana!]. 



91. S. laurifolium, Gr. Arboreous ; leaves leathery, oblong, rounded at both ends, 

 pointleted with a blunt point, repand-entire or obsoletely crenulate, pellucid-dotte^ : principal 

 veins numerous ; petiole bearing 3 minute subglobose glands below the top : stipules semicor- 

 date ; racemes filiform, terminal, 3-5 -partite ; S calyx bifid : filaments 2, diverging from the 

 monadelphous base. — Bich. Oub. t. 69. — S. Brownei, Herb. Bks. Stillingia laurifolia, Mch, 

 Hippomane biglandulosa, Sw. (exclus. syn. St.). — A very milky tree, 20-50' high; leaves 

 shining. — Hab. Jamaica,'., Macf., Al. ; [Ouba!, Venezuela!]. 



92. S. cuneatnm, Gr. (n. sp.). Leaves obovate or oblong, rounded or blnntish at the 

 top, cuneate at the base, bearing glands on the subentire margin, and at least 2, minute, ses- 

 sile ones above the base of the limb, devoid of pellucid dots; principal veius distant : petiole 



eglandular : stipules cordate-roundish ; racemes lateral, arcuate-filifonn, simple, numerous ; 

 S calyx bifid : filaments 2, diverging from the monadelphous base ; style 2-3-fid. — Leaves 

 usually smaller than in the preceding, 4" long, about 2" broad (sometimes twice as long), 

 coetaneous, at length leathery: principal veins 2"'-4"' distant, alternating with smaller 

 ones ; petiole 8'" long ; racemes 2"-3" long : $ clusters somewhat distant. — Hab. Jamaica !, 

 At., Maef., Pd., March. 



31. HIPPOMANE, L. 



Flowers of Sapium, but stamens 3 (-4), monadelphous almost to the base of the distinct 

 anthers. Styles 4-8. Pericarp drapaoeous. Seeds ovoid : testa as in Sapium. — Habit and 

 inflorescence of Sapium. 



