YDROCHARIS IVlORSUS RAN£. £ ROG-BIT, 



HYDROCHARIS Unnau Gen. PL DioeciA EnneAndriA. 



Masc. Spatha 2 phylla. Cal. 3 fidus. Cor. 3 petala fc Fllam. 3 interiora 

 ftylifera. F^m. Cal. 3 fidus. Cor. 3 petala. Styli 6. Caps. 6 locularis* 

 polyfperma infera. 



HYDROCHARIS. Unn*u Syfi. Vegetal: p. 746. Spec. PL 14.66. F/. Suede, n, 914. 



HYDROCHARIS. Haller, hjft. 4. 1068. 



NYMPHiEA alba minima. Bauh. p. 193» 



MORSUSRANvE Parkin/on. 1252. 



MORSUSRANiE Gerard, emac. 818. 



STRATIOTES folio afari, femine rotundo Ran. Syn. p. 290. The leaft white Water Lilly or FW-Mr 

 Hudfon. PL AngL ed 2. p. 436. /nog 



Lightfoot. FL Scot. p. 622. 



RADIX : Flagellis in longum extenfis facile multipli- | ROOT : this plant eafily multiplies itfelf by means of 



catur h^c planta, nutrimentum hauriens per | runners which (hoot out to a great length, 



radiculas albas, fibrillofas, in limum profunde ¥ and is fupported by long fibrous roots, which 



defcendentes. ^ | penetrate deep into the mud. 



FOLIA fex, five o&o, natantia, rotundato-reniformia, | LEAVES fix or eight, fwimming, of a roundifh kid- 



carnofa, glabra, integerrima, fubpellucida, t ney fhape, flefhy, fmooth, perfectly entire, 



venis paucis circularibus, plurimis tranfverfis | fomewhat tranfparent, marked with a few' 



notata, fubtus rubella. ¥ circular but numerous tranfverfe lines, reddifh 



I underneath. 



PETIOLI fpithamaei, craffi, pellucidi, lineis plurimis | LEAF STALKS fix or feven inches long, thick, tranf- 



decuffati. parent, having numerous crofs bars. 



SPATHiE in utraque fexu plurimae, radicales, ovata;, | SHEATHS in both fexes numerous, next the root, oval, 



pellucidas, in mafculis etiam circa medium pe- t and tranfparent, in the male plant alfo a pair 



dunculi enafcuntur birne, flofculos tenellos, | grow out about the middle of the flower ftalk 



inapertos quafi in vefica continentes. | which contain the tender unopen'd bloflbms 



t as in a bladder. 



PEDUNCULIlongitudinepetiolorum, ere£ti; mafculi | FLOWER-STALKS the length of the leaf {talks, up- 



triflori aut quadriflori ; feminei uniflori, craf- $ right; the male producing three or four flow* 



fiores. I ers, the female one only, thicker in fize. 



Mas. I Male, 



CALYX: Perianthium triphyllum, foliolis " ova- f CALYX: a Perianthium of three leaves* which are 



tis, concavis, flavefcentibus, membranaceis, | oval, concave, yellowifh, membranous and 



patentibus. j%\ 1. y fpreading. fig. 1. 



COROLLA : # Petala tria, alba, plana, rugofula, te- | COROLLA: three, white, fat Petals a little crumpled, 



nerrima, bafi flava. | very tender, and yellow at bottom. 



STAMINA : Filamenta novem, in tres ordines dif- % STAMINA : nine Filaments, difpofed in three rows, 



pofita, quorum intermedins ordo ftipitem fu- | of which each in the middlemoft puts out 



bulatum e bafi fua interiore, ftyli ad inftar $ from its bafe on the infide a ftyle like fubftance 



exferit, et in centro collocat.^ Duo reliqui or- | which is placed in the center of the flower, 



dines bafi conne&untur, ut internum et ex- | The two other rows are connected at bottom 



ternum cohaereat filamentum ; Antherje % fo that the internal and external filament ad- 



fublineares, biloculares, fta.vse.fig. 2.3.4.5.6.7. | here together ; Antherje yellow, nearly li- 



| near, with two cavities.^'. 2. 3. 4. 5. 6. 7. 



PISTILLUM : Germinis rudimentum in centro. /.8. | PISTILLUM ; the rudiment only of a Germen in the 



I center, fig. 8. 



Pemlna. % Female. 



CALYX : Perianthium ut in mare, fuperum. | CALYX : a Perianthium as in the male, placed above 



■% the Germen. 



COROLLA as in the male. 



minata. fig. 9. 11. $ mata forked and pointed. 



NECTARIUM -.Glandules tres,flavae, germen coronant.. | NECTARY : three yellow Glands crown the rermen. 



fig. 10. I 



PERICARPIUM: Capsula coriacea, fubrotunda, % SEED-VESSEL,: a roundifh, leathery Capfule, with 



fexlocularis. | fix cavities. 



SEMINA numerofa, minima, fubrotunda. ^ SEEDS numerous, very minute, and roundifh. 



Most of the deep ditches with a muddy bottom, having a flow current of water, and which abound in the 

 vicinity of the Thames, have their furface cover'd with this plant in Autumn, at which period its bloflbms 

 which are uncommonly delicate make their appearance. 



The leaves and indeed the whole ftruclure and oeconomy of the Frog-bit is exceedingly curious, and defer- 

 ving the minute attention of the inquifitive Botanifl. 



Its particular ufes we feem at prefent unacquainted with. 



Ray mentions a variety of it with fweet, double flowers, growing in a ditch at the fide of Audrey Caufey 

 near a wooden bridge in the Ifle of Ely. 



