326 



THE JOURNAL OF BOTANY 



Key to the Tribes of Eubiace^ occurring in Tropical 



America. 



A. Ovary with 3 or more ovules in each chamber (except Plat y car piim, in Hen- 

 riquezieJB, with 2 ovules per loculus ; and CephalantJius, in Nauclea- ; very 

 rarely Oldenlandia and Ilcdijotis ; and occasionally AUbcrtia ; in which 

 cases the ovary-cells are uniovulate). 

 B. Fruit dry, capsular or 2-i coccoid, or nucumentaceous (or, in Cepludivithua, 

 a fleshy syncarp). 

 Flowers in compact globose heads . . . . . . Nauclee.e 



Flowers not in compact globose heads. 



Flowers bilabiate with imbricate corolla ; stamens un- 

 equal, inserted high in the tube : 2 or 4 ovules 

 per loculus . . . . . . . . . . . . Henriquezie^ 



Flowers regular. 



Seeds winged, imbricate, shielding each other from 



below upwards . . . , . . . . . . Cinciione.e 



Seeds nearly always unwinged (winged on one side 

 in Sickinf)ia) ; if wmged, then set horizontally. 

 Corolla imbricate or contorted ; never valvate . . Eondeletiic.e 

 Corolla valvate. 



Seeds very many, horizontal ; stipules entire 

 or bifid. Trees and shrubs, usually with 

 conspicuous flowers . . . . . . Condaminee/:e 



Seeds relatively few, peltately-aflixed. Stipules 



often fimbriate -setose. Usually herbs .. Hedyotide/E 



(Oldenlanl>ie.t<;) 

 Lii. Fruit fleshy 



Corolla valvate (except sometimes Isertia, in Mus- 

 s£eude£e, with contorted-imbricate corolla). 

 Seeds minute, angled 

 Seeds large, or fairly so, compressed . . 

 Corolla imbricate. 



Seeds rather large, compressed 

 Seeds minute, subangular, pitted 

 Corolla contorted. 



Seeds many, minute, pitted, rarely tuberculate 

 Seeds usually not numerous, rather large ; testa 

 smooth or fibrous . . 

 AA. Ovary with 2 ovules in each chamber (see also Flatij- 

 carpum above). 

 Corolla valvate ; ovary bilocular (Alpine plants, chiefly 



Chili) 



Corolla contorted ; ovary 5-7-locular 

 AAA. Ovary with 1 ovule in each loculus (sometimes 2 in 

 Coussarca, the ovary being unilocular by evanescence of 

 the thin septum). 

 Ovules pendulous. 



Stamens inserted in the throat of the tube ; endosperm 



absent or scanty usually ; seed-stalk tliick 

 Stamens inserted at base of tube ; seeds albuminous . . 

 Ovules erect or ascending. 

 Corolla contorted . . 

 Corolla valvate. 



Ovule aflixed to base of ovary. 



Ovary unilocular, or bilocular with very thin 



septum 

 Ovary 2- or more-celled : septum thick. 



Flowers hermaphrodite : stamens usually in- 

 serted in throat of corolla. 



* The genera included by Bentham & Hooker in these tribes are dis- 

 tributed variously in Engler's system among the other tribes. 



MUSS/ENDE^ 

 CATESBiEEiK* 



Catesb.'ee^ 

 Hamelie.e* 



Hamelie.e 



Gaiidenie.e 



OnUCKSHANKSIE^Ti; 

 KeTINIPHYLLE/E* 



GuETTARDE.Ti 



CniococcE^ 



IXORE^ 



COUSSARETE 



