TROPICAL AMERICAN RUBIACE^ 



329 



EONDELETIE^. 



A. Corolla-lobes imbricate 



lufioresceuce with expanded foliar attractive organs. 

 Stamens affixed in throat of short corolla, exserted. 



Flowers in cymes 

 Stamens unequal, included : corolla ± curved, i'lowers 

 in spikes 

 Inflorescence without foliar attractive organs. 

 B. Capsule loculicidal. 



Seeds large, winged on one side 

 Seeds small, unwinged. 

 Calyx closed in bud, beaked, splitting into two, 



and early deciduous 

 Calyx open, persistent 

 BB. Capsule septicidal. 



Capsule semi-superior; squarrose sea-coast shrub 



with small xerophilous leaves and solitary 



flowers. Bracteoles accrescent in fruit . . 



Capsule quite inferior; inflorescence many-flowered; 



bracteoles not accrescent. 



Corolla-tube hairy inside ; anthers exserted ; leaves 



large (Trop. S. Amer.) 



Corolla-tube naked ; anthers included ; leaves 

 small, coriaceous (West Indies) 

 BBB, Capsule opening apically, slightly superior . . 

 AA. Corolla-lobes contorted. 

 Small herbs. 



Stamens included ; leaves opposite 

 Stamens exserted ; leaves 3-oo -whorled. . 

 Trees or shrubs. 



Ovary 4-locular, few-seeded 

 Ovary 2-locular, many-seeded. 



One or more calyx-lobes enlarged as an attractive 



leaf-organ 

 Calyx-lobes all subequal, not expanded. 

 B. Corolla-tube much elongated, many times exceed- 

 ing the lobes. 

 Capsule loculicidal 

 Capsule septicidal . . 

 BB. Corolla short, often scarcely exceeding calyx, tube 

 rarely longer than lobes. 

 Endocarp splitting as a net from the valves of 



the fruit 

 Endocarp not separating from exocarp. 

 Flowers closely crowded, many together 

 Inflorescence lax, or flowers solitary. 



Stamens appendiculate at base; capsule 



loculicidal . . 

 Stamens not appendiculate at base. 

 Capsule loculicidal (Central Am.) 

 Capsule septicidal (Guiana) 

 BBB. Corolla-tube long, very slender, lobes long linear . . 



Hedyotide^. 



(Oldenlandieje.) 



Calyx-lobes foliaceous, dissimilar, one or more accrescent 

 later. Alpine dwarf plant 



]\ arscewiczia 

 Fallasia 



Sickingia 



Stevensia 

 Rondeletia 



Racldcallis 



Bathysa 



Neomazaa 

 Pinarophyllon. 



Sipanea 

 LimnosiiKinea 



Acrobotrys 

 Pteridocalyx 



Augusta 

 Lindenia 



Sclienckia 

 PJdtopis 



ElcTAigia 



Deppea 



Ghalcpopliyllum 



Stylosiplionia 



CrucksJianksia 



[inc. Orcopolus, 



Bentham & Hooker's 



" Cruckshanksieas."] 



Journal op Botany.— Vol. 54. [November, 1916.] aa 



