HYDRANTHELIUM. 205 
tria, fauci corolke inserta, cum ejus lobis alternantia iisque breviora. 
FinauENrzA subulata, AwrHEtuE oblonge, dorso aflixze, basi bifidze, bilocu- 
lares, interne secundum longitudinem dehiscentes. Ovaniuw superum, 
ovatum, apice in stylum desinens. Sryrus longitudine staminum. Sricwa 
bilobum; lobis recurvatis. Carsur4 ovato-subrotunda, stylo persistente 
mucronata, calyce cincta, tenuissime membranacea, bilocularis2,. . . . 
valvis; dissepimentum utrinque placentiferum , tardius liberum. Sura 
crebra, minutissima , dissepimento affixa , pendula , cylindracea, striata , 
subarcuata, ad apicem podospermio brevi instructa. INTEGUMENTUM Cras- 
siusculum. Exposezmwrux nullum, nisi tenuisimum et integumento 
interne adhzerens (2). Exsnxo cylindraceus , subrectus. Corvrepoxzs plano- 
convexe. RaprcunA cotyledonibus longior, hilum spectans, supera. 
Hapsrrs. Herbule aquatic, facie Callitrichis. vel Elatinis hexandra. 
Caules ad ramificationes radicántes. Folia opposita, elliptica, integer- . 
rima, septemnervia. Flores axillares, solitarii, alterni, pedunculati, 
minuti , ebracteati, albi. 
ArrwrmASs. Gratioke, Lindernim et? Limoselle proxima, distinguitur 
calycis et corolloe structura et numero staminum. An Vandellie con- 
gener, cul tamen stamina quatuor? 
Exrvworocr, Ex $455, aqua, et àwuo; flosculus. 
;. HYDRANTHELIUM carurnicmoimrs. T Tab. DCXLVI. 
Crescit in cataractis. Aturenstium , Salto de Javarivent. ( Missiones del Orinoco.) e 
Floret Majo. 
Raprcrs flbrosz. Cares simpliees vel ramo instructi, filiformes, natantes, ad ramificationes radiculam 
emittentes, 5- 4-pollicares, glabri. Forza opposita, inferiora valde remota, sessilia 
capillarem simplicem 
elliptica, obtusa, integerrima, septemnervia, tenuia (recentia succulenta?), lacte viridia, glabra, 5-5; lineas 
1ouzs ( fig. 1.) axillares, solitarii, alterni, longe pedunculati, minuti ; pedunculis 
longa , sesquilineam lat 
capillaceis, 5-4 lineas longis, ebracteatis, glabris. CAryx (fig. 2.) profunde quadripartitus, glaber, viridis, 
persistens ; foliolis per paria oppositis; duobus oblongis, obtusis, trinerviis ; duobus Janccolatis, acutiusculis, 
