TROPICAL AMERICAN RUBIACE^ 



331 



Ovary bilocular. 



Filaments elongate, slender (Colombian) . . Neosahicea 

 Anthers sessile, or nearly so (Central American). 



Anthers minute, caudate-ovate . . . . Xerococcus 



Anthers linear-oblong . . . . . . Ophryococcus 



HameliezB 



Calyx-lobes equal. 

 Ovary 4-5-locular. 



Corolla contorted in jBstivation . . Bcrtiera 



Corolla imbricate. 

 Corolla markedly tubular, usually 5-angled . . . Hameliu 



Corolla shortly funnel-shaped . . . . . . . . Bothriospora 



Ovary 2-locular. 

 Anthers exserted ; inflorescence axillary . . . . Hoffmannla 



Anthers included ; inflorescence terminal . . . . Pseudohamdla 



One calyx-lobe foliaceous . . . . . . . . . . Otocalyx 



Oatesb^e^. 



Spiny plants, with small stipules. 



With leaves . . . . . . . . . . . . . . Catesbcea 



Leafless . . . . . . . . . . . . . . PJiyllacantha 



Without spines, and with large stipules. 



Ovary unilocular .. .. .. .. .. .. Tammsia 



Ovary bilocular. 



Calyx lobes foliaceous . . . . . . . . . . Sominera 



Calyx spathaceous, or o-6-lobed; leaves very large, 



often lobed .. .. .. .. .. .. Peiitayonia 



Gardenie^. 

 A. Corolla-lobes contorted. 

 B. Sseds comparatively large, with smooth or fibrous testa, 

 c. Flowers hermaphrodite (Eugaiidenie.tl). 



D. Inflorescence terminal, or terminal and axillary. 



Corolla not regular ; buds curved . . . . . . Posoqueria 



Corolla regular; buds straight. 



Ovary unilocular (West Indies) . . . . . . Casasia 



Ovary septate (none West Indian, except 

 Ramlia). 

 Style not exserted. 

 Inflorescence many-flowered, conspicuous 

 lax cymes. 

 Corolla-tube very long . . . . . . Tocoyena 



Corolla-tube barely 1-5 cm. long . . . . Dolichodelphys 



Flowers solitary, or B-4 in a head. 



Corolla-tube at most barely exceeding the 



limb, usually shorter Sphinctanthiis 



Corolla -tube elongate . . . . . . Pumdia 



Style far exserted {Retiniphyllum 



and Synisoon 

 DD. Inflorescence lateral. (see next key).) 



Corolla-tube villous in both throat and base. 



Stigma tapering. Testa fibrous . . . . Geiilpa 



Corolla-tube hairy in throat or base. Stigma not 



tapering. Testa never fibrous . . . . . . Randia 



cc. Flowers dioecious (Cokdiere.e). 



Stipules forming a conical cap, connate into a 

 sheath, deciduous above a circular slit, leaving 

 a persistent basal caruncle. 

 Male flowers in cymes ; female usually solitary, 



rarely 2-3 in a head . . . . . . . . Duroia 



* In the tribe Catesbteew {q. v.) according to Bentham & Hooker. 



