520 



BYTTNERIACE,E. 



sion. Stamens 5 (f. 91. e.), monadelphous at the base, all fertile, 

 and opposite the petals (f. 91. &.). Anthers ovate, 2-celled (f. 



91. e.). Carpels connected into a single fruit (f. 91. d.}. 

 Albumen fleshy. Embryo inclosed, curved with an inferior, ovate 

 radicle, andjlat leafy entire cotyledons. 



14 MELO'CHIA. Calyx naked, or furnished with 1-3 bracteas 

 at the base. Petals spreading. Styles 5. Capsule 5-celled, 5- 

 valved. Valves with a dissepiment in the middle of each. Seeds 

 1-2 in each cell. Peduncles many-flowered, opposite the leaves. 



15 RIEDLE'IA. Calyx naked, or furnished with 1-3 bracteas 

 at the base. Petals spreading. Styles 5. Carpels 5, connected 

 into a sub-globose 5-celled capsule, at length becoming distinct, 

 and opening by a longitudinal chink, each containing 1-2 seeds, 

 with the central axis free. 



16 WALTHE'RIA. Calyx furnished with a 3-leaved lateral 

 deciduous involucel. Style 1, crowned by a pencil-formed 

 stigma. Capsule 1 -celled, 2-valved, 1 -seeded, or perhaps there 

 are 5 carpels, and 4 of which are abortive. 



1 7 ALTHE' RIA. Calyx girded by a 3-leaved involucel. Sta- 

 mens 5, joined into a monadelphous tube. Anthers bursting on 

 the outside. Ovary pentagonal. Styles 5, connected. Carpels 

 5, joined, 1 -seeded. Seeds fixed by the centre. 



18 HERMA'NNIA. Calyx naked, campanulate. Filaments 

 monadelphous at the base, lanceolate, usually winged. Styles 

 5, connected together. Capsule 5-celled, 5-valved ; cells many- 

 seeded. 



19 MAHE'RNIA. Calyx naked, campanulate. Limbs of pe- 

 tals obcordate (f. 91. &.), spirally convolute. Filaments mona- 

 delphous at the base (f. 91. e.), each dilated in the middle into 

 a cordate tubercle, or a little hollow (f. 91. g.). Styles 5, some- 

 times joined (f. 91. d.). Capsule 5-celled, 5-valved (f. 91. d.), 

 many-seeded. 



TRIBE IV. 



DOMBEYA'CEA. Calyx 5-lobed (f. 92. a. f. 93. a.). Petals 

 5 (f. 92. 6. f. 93. c.), flat, large, somewhat unequal-sided, con- 

 volute in (estivation. Stamens (f. 92. e. f. 93. e.) multiple the 

 number of petals in one series, monadelphous (f. 92. c. and d.), 

 rarely all fertile (f. 92. d}, usually with some of them sterile (f. 



92. d.); these are either ami-shaped or strap-formed, others fer- 

 tile. There are commonly 2 or 3 (f. 92. c.) fertile ones between each 

 sterile one (f. 92. rf.), more or less joined together. Styles 3-5, 

 joined (f. 92. g.\ or free. Ovulce in each cell 2 or more. Em- 

 bryo straight in the axis of a fleshy albumen. Cotyledons leafy, 

 usually bifid, twisted or fiat. 



20 RUI'ZIA. Calyx girded by a 3-leaved involucel. Stamens 

 numerous, monadelphous, all bearing anthers. Style 10. Car- 

 pels 10, 2-seeded, closely cohering. Seeds somewhat trique- 

 trous, not winged. 



21 PENTA'PETES. Calyx girded by an unilateral, 3-leaved in- 

 volucel. Stamens with 3 antheriferous filaments between each 

 sterile one. Style 1, 5-toothed at the apex, or styles 5, con- 

 nected. Capsule 5-celled, 5-valved, many-seeded. Seeds naked, 

 not winged. 



22 ASSO'NIA. Calyx girded by a 3-crenate, 1 -leaved involucel. 

 Antheriferous filaments 15, 3 fertile between each sterile one. 

 Styles 5, very short. Carpels 5, 2-seeded, closely connected into 

 a single capsule. Seeds rather triquetrous, not winged. 



23 DOMBE'YA. Calyx girded by an unilateral 3-leaved in- 

 volucel. Stamens 15-20, hardly monadelphous at the base, 5 

 sterile, with 2 or 3 fertile ones between each sterile one. Style 

 1, divided at the apex into 5 reflexed stigmas. Carpels 5, 

 2-valved, 1 or many-seeded, closely connected into a single 

 capsule. Cotyledons twisted, bifid. 



24 MELHA'NIA. In every respect the same as Dombeya, but 

 the stamens are 10, 5 sterile, and 5 alternate fertile, bearing 1- 

 2 anthers each. 



25 TROCHE' TIA. Calyx without an involucel (f. 92. a.). Sta- 

 mens 20, monadelphous at the base (f. 92. e.), 5 of which are 

 sterile (f. 92. d.). Style. filiform (f. 92. /.). Capsule 5-celled, 

 5-valved. Seeds small, roundish, wingless. 



26 PTEROSPE'RMUM. Calyx naked or involucrated, tubular 

 at the base. Stamens 20, 5 of which are sterile. Style cylin- 

 drical, crowned by a thickish stigma. Capsule woody, 5-celled, 

 5-valved. Seeds ending in a wing. Albumen sparing or 

 wanting. 



27 VISE'NIA. Calyx naked. Stamens 5, monadelphous at 

 the base, without any sterile ones. Carpels 5, connate, 2-valved, 

 1-seeded. Seeds fixed to the bottom of the carpels, ending in a 

 wing at the apex. Albumen sparing. 



28 ASTRAP^A. Umbel of flowers girded by a many-leaved 

 common involucrum ; leaflets roundish -ovate, 2 outer ones op- 

 posite. Calyx of 5 sepals, furnished with 1 bractea on the 

 outside. Petals convolutely closed, as in Malvaviscus. Stamens 

 2-5, in a long tube, 5 sterile, and 20 fertile. Ovary 5-celled. 

 Style 1, crowned by 5 stigmas. Seed free, not winged. 



Genera allied to Dombeydcece. 



29 KY/DIA. Calyx campanulate, 5-toothed, girded by a 4- 

 6-leaved involucel ; leaflets of involucel adnate to the calyx. 

 Petals 5, obliquely obcordate. Stamens in a long tube, divided 

 at the apex into 5 4-anthered bundles. Ovary 1. Style trifid. 

 Stigmas dilated. Capsule 3-celled, 3-valved, 3-seeded. Seeds 

 fixed to the bottom of the cells. 



30 GLU'TA. Calyx campanulate, deciduous, naked. Petals 

 5, lanceolate, adhering to the long stipe-formed torus. Stamens 

 monadelphous, adhering around the torus. Anthers round, ver- 

 satile. Ovary obovate. Style 1 . 



31 MARA'NTHUS. Calyx naked, about the length of the 

 petals. Stamens numerous, rather connate at the base, all fer- 

 tile. Anthers 2-celled. Style 1, lateral, crowned by a simple 

 stigma. Drupe oval, villous, 2-celled; cells 1-seeded. Seeds 

 fixed by the base. 



TRIBE V. 



WALIICHIE'JE. Calyx 5-lobed (f. 93. a.), girded by a 3-5 

 leaved (f. 93. 6.) involucel, which is distant from the flower. Pe- 

 tals 5 (f. 93. c.), flat. Stamens numerous, in a long tube (f. 93. 

 e,), outer ones smallest. Anthers 2-celled, erect. 



