88 
Geography. Natives of equinoctial America, where they inhabit ancient 
forests, by the banks of streams, sometimes rising up mountains to a consider- 
able elevation. They are often trees with large spreading heads. 
Properties. Unknown. 
Callisthene, Mart. 
Amphilochia, Mart. 
Lozania, Mutis. 
Agardhia, Spr. 
GENERA. 
Vochya, Vand. 
Vochy, Aubl. 
Vochysia, Juss. 
Salmonia, Neck. 
Cucullaria, Schreb. 
Salvertia, St. Hil. 
Qualea, Aubl. 
Erisma, Rudg. 
Dehroea, Roem, et 
Schult. 
Ditmaria, Spreng. 
Alliance IV. CISTALES. 
Essential Character. — Flowers regular. Albumen present in the seeds. 
These can be confounded only with the Guttal aUiance, from which the 
hairy, thin, deeply- veined, and usually alternate leaves, together with a habit, 
which, although sometimes woody and even arborescent, is most commonly 
herbaceous, assist in distinguishing them. The orders ,vary from Chlena- 
ceae, which are the highest form, to Elatinaceae which is the lowest, through 
all gradations of developement. Elatinaceae are to Cistaceae what Fumaria is 
to Nelumbium, Hippuris to CEnothera, Viscum to Loranthus, and so on. Hugo- 
niaceae form a transition to Malvaceae in the next aUiance. 
Order LXV. ELATINACEi^L. The Water-Pepper Tribe. 
Elatine^, Cambesscdes in Me'm.Mus. 18. 225. (1829) ; Aug. de St. H. FI. Bras. 2. 159. 
(1830) ; FI. Seneg. 1. 42. (1832) ; Fischer and Meyer in Linncea, x. 69. (1835). 
Essential Character. — Sepals 3-5, distinct, or slightly connate at the base. Petals 
hypogynous, alternate with the sepals. Stamens hypogynous, usually twice as numerous 
as the petals. Ovary with from 3 to 5 cells, an equal number of styles, and capitate stig- 
mas. Fruit capsular, 3 -5 -celled, with the valves alternate with the septa which usually 
adhere to a central axis, but in Merimea to the valves separating from the axis. Seeds 
numerous, with a straight embryo, whose radicle is turned to the hilum, and little albumen. 
— Annuals, found in marshy places. Stems fistulous, rooting. Leaves opposite, with 
stipules. 
Affinities. This little order has been established by Cambessedes, who 
distinguishes it from Alsinacese, with which a part had been confounded, by 
the capitate stigmas, by the dehiscence of the fruit, by the little albumen, 
and by the straight not curved embryo. The species agree with Hyperica- 
cese in many respects, even in the presence of receptacles of resinous secre- 
tions ; but differ in having a persistent central axis in the fruit, definite stamens, 
and so forth. 
Geography. Found in marshes in the four quarters of the globe. The 
Elatines are natives of Europe and Asia, Bergias of the Cape of Good Hope and 
the East Indies, and Merimea of South America. 
Properties. Unknown. 
GENERA. 
Elatine, L. Bergia, L. ? Tetradiclis, M. B. 
Crypta, Nutt. Merimea, Camb. Anisadenia, Wall. 
