32 l-LOUA INDIOA. [Ranunculacece. 



a. major, foliis orbicularibus inciso-crenatis, acheniis longioribua in 

 capitulum oblongum coUectis. 



/3. alpinus (Hook.); minor, foliis elliptiois vel oblongis apice triden- 

 tatis, acheniis latioribus brevioribus in capitulum globosum collectis. 



Hab. In Tibet 000. ubique, inter Iskardo, alt. 7000 ped.! at Hundes! 

 (a. rarior, in paludosis 10-12,000 ped.; (3. vulgatissimus, usque ad 

 17,000 ped. alt. adsoendens) et in Sikkim interioris alpibus, alt. 11,500- 

 14,000 ped.!— («>. v.) 



DiSTMB. Sibiria! Persia! America bor. in planitie a Novo Eboraco 

 in montibus a Mexico usque ad mare arcticum! in America auatr. tem- 

 peratse et tropicse alpibus! 



Serla parva (ssepe pusilla), stolonifera, ad nodos radicans et foliosa. Folia forma 

 valde varia, orbicularia elliptica vel oblonga, regulariter iuciso-crenata, vel apice tan- 

 tum triloba, basi rotundata vel cordata, :|— 1 poU. longa. Scapi folia aequantes vel 

 longiores, 1-6- (vel rarissime 12-) unciales, l-pauciflori, aphylli, vel ad ramificationes 

 bracteas lineares incisasve gerentes. Flores i-iiunciales, flavidi. Sepala 5, ovalia, 

 patentia vel reflexa, membranacea, subcolorata. Petala 5-8, anguste obovata. Ache- 

 nia nBmerosa, obovata, compressa, dorso gibbosa, stylo brevi uncinato vel recto apicu- 

 lata, utrinque longitudinaliter tricostata. 



This, though a very variable plant in form of leaf and in size, is well characterized 

 by the longitudinally ribbed fruit. It is extremely widely diffused, and as all the 

 forms have a wide extension, there can, we think, be no doubt, notwithstanding 

 slight differences in the shape of the leaves and fruit, that only one species_exist3. 



§ 2. Folia omnia secta, caulis radicans. (E. diffusus, DC, in^quo 

 cauUs ad nodos radicans cum affinibus, in § 4 quaerendus.) 



8. R. radicans (C. A. Meyer in Ledeb. PL Alt. ii. 316); pro- 

 stratus, radicans, foliis reniformibus 3-5-lobis, floribus oppositifoUis, 

 acheniis numerosis subglobosis. — Ledeb. Ic. Alt. 1. 116, Fl. Ross. i. 34. 

 E. natans, C. A. Mey. in Led. Ic. Alt. t. 114, et M. Ross. i. 34. 



Hab. In Tibet occidentali alpino : Ladak 14-16,000 pe(^., H. Stra- 

 chey ; Hundes, Str. et Wint.! — {v. v.) 

 DiSTRlB. Sibiria, Ledeb.! 



Heria prostrata, glabra, in paludosis radicans, et radices plurimas albas fibrillosas 

 emittens, interdum fluitans. Folia ad nodos iu ramulo abbreviate axillari plura, re- 

 niformia, pollicaria, 3-5-loba vel 3-5-flda, lobis rotuudatis vel crenatis. Flores parvi, 

 diametro ^-unciales, oppositifolii vel subtcrminales, longe pedicellati. Sepala reflexa. 

 Petala late obovata, fere rotundata, sepalis vix longiora. Achenia plurima, parva, in 

 capitulum fere .^-uuciale globosum coUecta, vix compressa, stylo brevissimo mucro- 

 nata. 



The two species distinguished by Meyer and Ledebour differ in nothing but the 

 degree of division of the leaves. 



9. R. hyperboreus (Eottb. Act. Hafn. x. 458. t. 4. f. 16); pu- 

 sillus, stoloniferus vel ereotus, foliis 3-5-fidis, floribus soKtariis, acheniis 

 numerosis parvis subglobosis. — T)C. Prod. i. 85 ; Ledeb. M. Ross. i. 35 ; 

 Torr. et Gray, M. N. Am. i. 20. E. pygmseus, Wall. M. Lapp. 157. 

 t. 8./. 1 ; BG. Prod. i. 35 ; Ledeb. It. Ross. i. 36 ; Torrey et Gray, I. c. 



Hab. In summis alpibus : Ladak, H. Strachey! Kanawer, Jacque- 

 mont! et Sikkim, alt. 15-17,000 ped.!— (u. v.) 



