905 



Carpella basi loculis inanibus destituta. — Herbae perennes v. annuae 

 nonnuniquam aquatlcae. 



Conspectus sectionum, 



1. Carpella plus minus turgida immarginata transverse 

 corrugata. Fovea iiectarifera nuda. 2. 



— Carpella nunq^uam corrugata. Pedunculi fructiferi 

 recti. 3. 



2. Petala 5— 9 alba. Pedunculi fructiferi arcuati , , . Sect. I. Batrachium DC. 



— Petala 5-lutea. Pedunculi fructiferi recti Sect. II. Hecatouia {LAM.)GRETf 



3. Carpella inflata ovata v. ©"bovata immarginata. Peduu- 

 culus axillaris. 4. 



— Carpella subinflata a latere compressa ovata rarinata. 



Pedunculus radicalis Sect. VI. Ph y s op h y Hu m FRET5. 



— Carpella ovata v. orbiculata lenticularl-compreaaa cari- 



nata v. marginata raro ventricosa et puberula, flos lu- 

 teus. 5. 



4. Petala 5— 8-alba v. rosea. Folia basilaria plus minus 



rotundata venosa varie lobata v. partita .... Sect. III. Leucoranuneului B0I83. 



— Petala 5—10 alba, flava v. lutea. Folia basilaria ro- 

 tundata, lanceolata v. liuearia nervata integerrima . , Sect. IV. Raauncellft Spach. 



— Petala 5 fovea nuda instructa. Splca globosa. Radix 

 grumo^a; folia venosa Integra transverse latiora reni- 



formi-quadrata Sect. V. Ttorft DC. 



&. Pedunouli axlUares.' Spica ellipsoidea v. cyllndrica, 



carpellis subpapyraceo-compressis circumcirca carinatis 



vel subalatis. Radix gruraosa stolones fiUformes edens Sect. VII. Ranun cuUs t rum DC. 

 -- Pedunculi oppositifolii. 6. 

 0. Folia venosa Integra lanceolata (basil, ovata). Spica 



globosa, carpellis ovatis v. ellipticis, convexibus v. sub- 



compressis carinatis, disco saepe tuberculatis .... Sect. VIII. Flammula Spach. 

 •;- Folia palmati-partita. 7. 

 *• Carpella decidua, plus minus lenticulari-compres^a, mar- 



ginata carlnata vel margine obtusa, raro ventricosa pu- 

 berula, rostro subulate termxnata Sect. IX. Euranunculua GODR. 



■^ Carpella receptaculo adnata vix decidua, plauo-com- 



ppessa, disco vel etiam margine echinata raro laevia, ia 



rostrum subensiforme latum abeuntia * Sect. X. EchineMaDC. 



Sect. 1/ BatYacJiium DC. Syst. I, p. 232—3! Petala 5—9, alba, basi fovea 



nectarifera nuda instructa. Spica fructifera globosa, carpellis tnrgidis 

 immarginatis tenuissime carinatis, transverse corrugatis, stylo deciduo 

 terminatis. — Plantae perennes aquaticae submersae vel natantes, pe- 

 dunculis fructiferis arcuatis oppositifoliis. 



Clavis specierum analytica. 



• Receptaculum globosum glabrum ; petala ungue alba ; folia 

 ___ ^^'iformla roniformia. 2. 



Keceptaculum pilosum v. hirsutum. 4. 

 *• *olia subintegerrima vel 5-lobalata, lobis basi dilatatis. Flos 



£;^f: 2'" diametro. 

 -^ ;roiia 5-Iobata, lobis cuneato-obovatis basi angastioribus. 



*los 4-8'" diani. Spica carpellis 30-40 R- Denormandii F. Schltz. 



gPica circ. 1,5'" diam., carpellis 20-30 R. hederaceusL. 



;r ^Pica circ. 2'" diam.. carpellis circ. 60 R. horn oio p hyl lu s T£X. 



• *oUa saepissime heteromorpha; altera submersa rotundata 

 setaceo-multifida laciniis uudique patentibus , altera nataatia 



_ 5^»ii/ormia lobata v. flabellata. 5. 

 _ *oUa conformia reniformia. 7. 



5 D '^^ omnia multifida submersa. 12. 

 _• «eceptaculum globosum. 6. 



«eceptaculum ovatum vel ovato-conicum'; carpella plerumc[ue 



6 I'^ora; pedunculi saepissime foliis longiores. 12. 



*ios minimus (2— 3'" diam.), petalis calycem parum vel baud 

 _ superantibus R- tripartitus DO. 



^ J^^.^^^'^iocris vel majusculus, petalis calyce certe 3-plo Ion. 



7 Sionbus. 7. 



- pff !* dlstantia. Flos 5,8-6,5'" diametro. 8. 



8. Fi ? c^^tingentia v. se invicem tegentia. Flos major. 9. 

 tiD?f f.7^'^'" diani.; petala ungue lutea, stamina c. 10, car- 

 ifti^ 25-30. Receptaculum sparse pilosum. Folia 3-partita ^ 



^ P,^,^%s^bcuneati3 dentatis (in Gallia occid.) B. lentarius REV. 



'^„^^;5-6,5"'dlam.; petala ungue alba, stamina.14-20; car- 



• rfliiv ^^~^^- Recept. hirsutum. Folia 3-partita, lobis lato- ^ ^ , , 



■ '*'*^U3 bilobia, lobis crenatis E. li o lo I eucus LtOTD, 



» 



