X.
CARD AMINE PETRÆA.
Cardamine foliis fimpliciffunis oblongis dentatis. Linn, fyft, pag. 593. Flor.
dan. tab. 386. Hudf. angl. 254.
Cardamine petræa Cambrica nafturtii facie, Dillen. hort. Eltham. tab. 61.
fig‘ 71* -
Loca faxofa rupeftria amat planta, rupium in montium ilia catena
a Medling & Brühl verfus.Baaden & ultra excurrente, non vulgare veris
inter primitias ornamentum. Nec montana editiora loca reipuit, & ipfa al-
pium faxofa præcipitia fubinde petens. Alpina tamen notis compluribus a
planta, humiliora depreffioraque loca inhabitante differt, quas in fequenti-
Jbus exponere animus eft. Cefpitofe nunquam non crefcit planta, prædita radiée
perenni, fublignefcente, nunctereti, alias fubfufiformi, ramofa, mul-
ticipiti, tri - quadripollicari, albida aut fordide flavente, fetis copiofis
imbricatis adultior a veterum foliorum petiolis fuperne coronata. Caules
hæc profert annuatim plures , cefpitis in morem colleftos, ereftos, palmares,
& fpithama plus minus altos, teretes, ftriatos, glaberrimos, baft le-
viter purpurafcentes, fuperne ex glauco virides, fimplices utplurimum aut
ramulis nonnullis brevibus ex foliorum alis egredientibus auftos, foliisque
alternatim veftitos : verum nec ramofiffima défunt plant® fpecimina, ut pror-
fus aliam ftirpem crederés. Folia radicalia plurima in orbem patent, atque
petiolo latefcente fuperne modice canaliculato, baft fubciliato pollicis unius
aut duorum longitudine, caulis imam bafim arfte amplefhintur : ipfa lanceo-
lata aut ex lanceolato oblonga, obtufiufcula, margine nunc fimpliciter, alias
proprofunda
atque repando-denticulata, fereque, uti in Sifymbrio arenofo,
runcinato-pinnatifida, utrinque glabra, at per oras præprimis ad bafim fub-
ciliata, fuperne faturatius virentia, dorfo ex viridi glauca, verfus petiolmn
aquofe rubella, pollicem unum absque petiolo circiter longa, lineas duas
vel très lata. Caulina alterna, laxa, erefto patentia, lineari-angufta, obtufiufcula
, glabra utrinque atque ex glauco viridia, pollicem longa, lineam
circiter lata : fuprema feffilia, integerrima, bafim verfus attenuata, inferio-
ra vero petiolata cum fubdenticulato margine. Corymbus florum & in cau-
le , & in ramis, fi qui adfint, terminalis, ex more gentis primo fatis den-
fus, at poftea fenfim in racemum elongatus. Flores fpeciofi, magni, ampli
pro plantæ magnitudine, nivei candoris, pedunculis fuffulti alternis in-
sequalibus, longioribus duntaxat inferioribus, teretibus, ereciis, glabris,
læte viridibus, a linea una ad quatuor longis. Calycis tetraphylli, brevi
decidui, foliola erefta, lanceolato-ovata, obtufa, integra, concava, un-
guibus petalorum fubæqualia, ex flavo virent, apice fufcefcente: foliolis
duobus alternis majoribus bafi prominentibus gibbis. Petala quatuor, ob-
ovata, obtufiffima fereque fnbrotunda, integerrima, aut fubin margine le-
viffime emarginata, plana, patentia, fenfim abeunt in unguem brevem, re-
fturn ex viridi flavicantem calycis fere longitudine, ipfa lineas duas, aut
paulo plus, longa, lineam unam aut fefquialteram lata. Stamina fex tetra-
dynama. Filamenta fubulata erecla ftyloque adpreffa albida longiora quatuor
ftylum longitudine æquant, duo reliqua breviora nonnibil: anther®
breves, oblong®, ereft®, fiav®. Stylus' reft us, cylindricus, læte virens,
filamentis æqualis : ftigma fimplex, obtufiufculum vel leviffime emarginatum,
collo ang uftiori, Glandula neftarifera filamenta breviora inter & germen
lubglobofa, hyalina. Siliqu® lineares, obtufiufcul®, glabr®, ereft®, to-
rulol®, feminibus copiofis farft® : valvulis bafi dehifcentibus nec revolutis.
D " Plat