IivpRocorvLE VurcARIs  MansH PENNYWORT, or 
WHITE-RoT. 
HYDROCOTYLE Linn. Gen. PL PENTANDRIA Dio 
Umbella fimplex: Involucro 4-phyllo. Perala integra, — Semina 
femiorbiculato-compreffa. 
Ran Syn. Gen. 11. UmBeLiirer& HrRnB. 
HYDROCOTYLE vu/garis foliis peltatis, umbellis quinquefloris. Linn. Sy/. Ventas ps BIA. ps 
PL $. 998. #7. Suec. n. 234. 
HYDROCOTYLE folus rotundis emarginatis, petiolis centralibus, umbellis faftigiatis. Hail. Hifi, 819. 
RANUNCULUS aquaticus, cotyledonis folio. Bauh. Pin. 180. 
COTYLEDON paluftris. Ger. emac. 350. Parkinf: 1214. 
HYDROCOTYLE vulgaris. Inf. R. H. 328. Rait Sym. p. 222. Marfh Pennywort, or White-Rot. 
Hudf. Fl. Angl. ed. 2. p. 110. 

RADICES perennes, capillacee, albida. * ROOTS perennial, capillary, whitifh. 
CAULES repentes, teretes, glabri, ad genicula radi- } STALKS creeping, round, fmooth, ftriking root at the 
cantes. x oints. 
FOLIA longitudine et latitudine vix pollicaria, longe LEAVES in length and breadth about an inch, ftand- 
petiolata, peltata, orbiculata, repanda aut ing on long footftalks inferted into the cen- 
fublobata, crenulata, centro nonnihil de- tre of the leaf, orbicular, waved or fomewhat 
preffa, punctoque albido notata, utrinque lobed and notched on the edge, the centre a 
venis anaftamofantibus reticulata, glaberrima, little depreffed, and marked with a white 
nitentia, lete viridia. — Perro/; fubbipollicares, dot, veins anaftamofing and forming a kind 
ere€ti, teretes, glabri, inferne nudi, fuperne of net-work on each de the leaf, perfe&ly 
pilis fetofis, horizontalibus, diftantibus,° hif- : fmooth, gloffy, and of a bright green colour. 
piduli. M The Leaf-Stalks about two inches long, up- 
right, round, fmooth, naked below, above 
befet with briftly, horizontal, diftant hairs. 
FLOWERS fmall, in clufters, white or reddifh, pro- 
ceeding from the creeping flalk near the 
round out of the ale of the leaf-ftalks, 
GENERAL PEDUNCLES fingle, little more than an 
inch in length, upright, round, flightly hairy, 
producing little balls or whorls rather than 
terminating in an umbel of flowers. Szpule 
two, roundifh, membranous, white, at the 
bafe of each peduncle. 
FLORETS from 5 to g, very fmall, ftanding on very 
fhort foot-ftalks, a very minute leaf, narrow 
and tapering, placed under each floret. 
PERIANTHIUM of each floret fcarcely any. 
COROLLA pentapetalous, a line in diameter, the 
PETALS ovate, pointed, entire, fpreading, 
of a pale rofe colour, jig. 1, magnif. fig. 2. 
STAMINA: 5 Filaments, tapering, whitilh, fhorter 
than the corolla: ANTHER« very {mall and 
white, jig. 3. 
PISTILLUM: Germen beneath the corolla upright, 
flattened, orbicular, fomewhat three-cornered, 
fig. 4. crowned with a yellow fungous fub- 
flance; SrvrEs two, tapering, very fhort; 
STIGMATA bluntifh, white, fig. 5. 
SEED-VESSEL none, Fruit orbicular, flattened, 
fplitting in two. 
SEEDS two, orbicular, flattened, of a pale brown 
colour. )j 
Was 
ip Se tere e rte ee ete af 
T 
D Pre 
FLORES parvi, glomerati, albi, aut fubrubelli, pro- 
pe terram e repente caule ad axillas petiolo- ? 
rum prodeuntes. 
PEDUNCULI communes folitarii, vix ultra pollicares, : 
ere€ti, teretes, pilofiufculi, in glomerulis aut : 
verticillis potius quam umbellulam termi- 
nantes. Sz/pule due, fubrotunde, membra- 
nacez, albe, ad-bafin cujufvis pedunculi. 
e, D Moa aat to, 
MuR UE ERIT ate ale EIE RENE TA 
FLOSCULI 5, ad 9, fertiles, exigui, breviffime pedi- 
cellati. Foliolum minutum, lineari-fubulatum, ; 
fingulo flofculo fubjectum. 
PERIANTHIUM proprium vix ullum. 
COROLLA pentapetala, linearis diametro, PETALA 
ovata, acuta, integra, patentia, pallide rofea, * 
. 1, 2, auct. 
STAMINA: FILAMENTA 5, fubulata, albida, corolla $ 
breviora. ANTHER# minime, albe, jig. 3. 
Mu aM aS, ai ate Nig Lie a te afe all 
AIRE URE SRS ERE URS UAE AE AE 
ke als the he ste 
ak 
PISTILLUM: Germen inferum, erectum, comprel- 
fum, orbiculatum, fubtrigonum, fg. 4. cor- 
pufculo fungofo, flavo, coronatum ; Sty. 
duo, fubulati, breviflimi; Stigmata obtu- 
fiufcula, alba, fig. 5. | 
PERICARPIUM nullum : Fructus orbiculatus, com- 
preffus, bipartibilis. 
SEMINA duo, orbiculata, compreffa, pallide fufca. 
MIRARI Me De ae ts ae 
Ree rne 
The name of /Vbrre-Rot has been given to this plant, from an idea of its being the caufe of the rot in fheep, 
an opinion founded we apprehend more on conjecture than experiment; the real caufe of that difeafe 1s we 
fear yet to be difcovered, and will not be found perhaps to arife from their feeding on any particular plant. 
It is extremely common on all boggy ground near London, and we believe in every part of Great-Britain, It 
flowers in July and Auguft. 
The fru&tification of this plant, which proves it truly to be related to the umbelliferi, is rarely feen without a 
clofe examination, being ufually hidden by the leaves, but as it 1s plentifully produced, it may readily be 
difcovered at the proper feafon. 
The leaf affords an excellent example of what Linn aus calls the foZum peltatum. 
