283 
Friedericia, Mart. 
Aplolophium, Cham. 
Amphilophium, 
H. B. K. 
Ferdinandusa, Pohl. 
Sickingia, W. 
Platycarpiura, H.B. 
Chilopsis, Don. 
Astianthus, Don. 
Delostoma, Don. 
Stenolobium, Don. 
Schrebera, Roxb. 
Trigonocarpus, Wall. 
Wightia, Wall. 
Calosanthes, Bl. 
Fieldia, A. Cunn. 
Rhigozum, Burch. (4 1) 
Lccremocarpus, 
R. et P. 
Calampelis, Don. 
Tourretia, Dombey. 
Argylia, Don. 
Crescentia, L. 
Order CCXIl. CYRTANDRACE^. 
CyRTANDRACEiE, Jack in Linn. Trans. 14. 23. {read 1822, in May). — Didymocarpe^, 
Don in Edinb. Phil. Trans. 7. 82. (1822, July) ; Prodr. FI. Nep. 121. (1825) ; Mar- 
tins H. R. Mon. (1829). 
Essential Character. — Calyx campanulate, 5-cleft or 5-leaved, equal. Corolla 
tubular, irregular, 5-lobed, somewhat 2-lipped, the lobes imbricated in gestivation. Stamens 
4, didynamous, of which 2 are sometimes sterile; anthers 2-celled. Ovary superior, 
elongated, surrounded by an annular disk, 1 -celled, with 2 many-seeded placentae, each 
of which consists of 2 diverging plates ; style filiform ; stigma 2-lobed, or consisting of 2 
plates. Fruit capsular or succulent; the former siliquose and 2-valved, 1 -celled, with 
double longitudinal placentae, which often cohere, so as to give the appearance of two ceils. 
Seeds very numerous, minute, suspended, naked, or with a coma ; albumen none ; embryo 
straight, taper, orthotropous. — Terrestrial or parasitical plants, usually herbaceous and 
stemless, occasionally caulescent, and sometimes shrubby. Leaves usually opposite, one 
of them being dwarfed, radical, crenate and rugose, or smooth. Floivers umbellate, often 
purple or pink. 
Affinities. Very closely allied to Gesneracese, Bignoniacese, and Peda- 
liacese. From the former they differ in nothing except their never having any 
tendency to produce an inferior ovary, their deeply-lobed placentae, their* 
usually siliquose fruit, and the want of albumen ; agreeing entirely with them 
in habit. From Bignoniaceae they are distinguished by their herbaceous mode 
of growth, their minute apterous seeds, 1 -celled ovary, with 2 double parietal 
placentae. From Pedaliaceae they differ in nothing whatever, except their mi- 
nute indefinite seeds, and the membranous, not woody, texture of the siliqui- 
form fruit and placentae. Don appears to me to have been mistaken in assign- 
ing an heterotropous embryo to this tribe ; the embryo is certainly orthotro- 
pous in Streptocarpus Rexii, with which other genera probably agree. Von 
Martius refers Ramon da hither. 
Geography. This order occupies nearly the same station in the Old 
World as Gesneraceae in the New, being almost entirely confined to the tro- 
pics, unless the Ramonda of the Pyrenees should be found a genuine plant of 
the order, as Von Martius supposes. 
Properties. Unknown. 
GENERA. 
Chirita, Hamilt. 
Calosacme, Wall. 
Didymocarpus. 
Henckelia, Schl. 
Streptocarpus, Lindl. 
Dorcoceras, Bge. 
Loxotis, R. Br. 
Antonia, R. Br. 
Glossanthus, Klein. 
Stauranthera, Benth. 
Epithema, Bl. 
Aikinia, R. Br. 
Rehmannia, Libosch. 
Whitia, Bl. 
Tromsdorffia, Bl. 
Agalmyla, Bl. 
Rhyncotechum, Bl. 
Loxonia, Jack. 
Centronia, Bl. 
Kuhlia, Rnwt. 
Incarvillea, J. 
Amphicome, Royle. 
Campsis, Lour. 
? Loxophyllum, Bl. 
? Rhynchoglossum, Bl. 
