96 S. Kurz — Contributions towards a [No. 2, 



* Anther-cells Jlexuose or folded up (very rarely straight or only ctirved.) 



X Corolla rotate or bell-shaped, 5-petalled or 5-parted to the base. Fila- 

 ments usually free. 

 + Petals cirrhiferous or fringed. 

 HoDGSONiA. Ovules 12, in pairs attached to each side of the 2 parietal placentas. 

 Seeds large, united by pairs. Leaves lobed, coriaceous. 



Trichosanthes. Ovules and seeds very numerous, the later variously shaped, 

 small or large. Petals fringed or rarely entire or nearly so, white. Leaves entire or 

 lobed. 



+ + Petals entire. 



t Calyx-tube of males elongate. Stamens inserted in the calyx- 

 tube, included, the anthers cohering into an oblong head. 

 Gymnopetalum. Stigmatic lobes of female flowers linear, simple. Tendril simple. 

 Fruit small, pulpy within. Corolla yellow, 



Lagenaria. Stigmatic lobes of female flowers 2-lobed. Tendrils 2-cleft. Fruit 

 with a woody rind. Petiole 2-glanded at the apex. 



t t Male calyx-tube short (very rarely long). Stamens in- 

 serted at the mouth or in the tube of the calyx, usually 

 exserted, the anthers free or slightly cohering. 

 O Stamens inserted at the mouth of the calyx ; filaments 

 exserted, recurved ; anthers free, the cells bordering 

 the broad connective. 

 LuFEA. Male flowers racemose. Fruit dry, with a woody-fibrose endocarp, de- 

 hiscing by an apical circumsciss opercle. Petiole without glands. 



Benincasa. Male and female flowers solitary. Fruit fleshy, berry-like, pulpy 

 inside. Tendrils 2 — 3-cleft. Petiole without glands. 



Stamens inserted below the mouth of the calyx ; an- 

 thers conniving or cohering. 



X Calyx furnished with 1 — 3 scales at the bottom. 

 Momordica. Calyx with 2 or 3 scales. Male flowers usually furnished with a 

 large complicate bract subtending the pedicel. Tendrils simple. 



Thladiantha. Calyx with a single scale. Bracts of male flowers dimorphous, 

 the inner ones smaller and imperfect. 



X X Calyx without scales. 

 CucuMis. Connective produced beyond the anther-cells. Tendrils simple. 

 CiTRULLUs. Connective not prolonged. Stigmas reniform. Tendrils usually 

 2— 3-cleft. 



X X Corolla bell-shaped, 5-lobed to the middle or somewhat further 

 down. 

 Cephalandra. Male flowers solitary or nearly cymose. Stigmas narrow, 2-lobed 

 or -parted. Tendrils simple. 



CucuRBiTA. Flowers solitary. Calyx-lobes spreading. Filaments free. Stigmas 

 3, 2-lobed or 2-forked. Tendrils usually 2- or more- cleft, 



* * Anther-cells straight or curved^ not Jlexuose. 



X Style inserted on a cupular or annular disk. 

 Bryonia. Male flowers racemose or clustered. Filaments short, the connective 

 not produced. Berry spherical, shortly peduncled. 



MucKiA. Male flowers solitary or clustered. Calyx bell-shaped. Connective 

 produced beyond the anther-cells. Berry spherical, sessile. Seeds scrobiculate. 



