32 



CARL SKOTTSBERG, A BOTANICAL SURVEY OF THE FALKLAND ISLANDS. 



E. F., on moist places, in ponds, streams etc, not common: Gaudichaud, 

 d'Urville, Hooker; Port Louis! with Sfhagnum; Lafonia, Arrow Harbour! along 

 a small pond; Mapa! in a stream. — Fuegia. 



96. R. niaclovianus d'Urv. (R. parviflorus Gaud.) 



On moist places, but not in swamps, fairly common at least in E. F. and 

 found by many collectors; f. i. Port Louis! Port Stanley! on the banks of streams, 

 Arrow Harbour! in moist meadows and on clay at a pond; W. F., Vallentin, 

 NiOHOL ex Wright. — Fuegia (Basket Island according to Spegazzini). 



*7J. R. psemlotrullifolius nov. nom. [R. truUifolius Hook fil. 1879 (non 1844!) 

 et auctt. sequent.] 



The original R. truUifolius Hook. fil. was founded on insufficient material, as 

 the flowers were not quite complete. When examining a collection of plants from 

 Kerguelen, Hooker found what he believed to be the same species and redescribed 

 and amply figured it, so that there is no doubt whatever that this is the same plant 

 as I call R. pseudotruUifolius here. I have retained the name truUifolius for the 

 original plant, which, as I shall show below, is a very distinct species. 



Fig. 5. Ranuncuhis hydrophilus: a sepal, b — c petals, d — f carpels, 

 g — i mature achenes, X 10. 



R. truUifolius Reiche Fl. de Chile I. p. 14 is R. pseudotrvUifolius. He states 

 that the number of sepals and petals is 3, but in an additional note, III. p. 381 he 

 declares himself mistaken and describes the flowers as pentamerous, quoting Fl. 

 ant. tab. 82. However, the flower figured on this plate belongs to R. hydrophilus 

 Gaud. The same mistake is made by Macloskie in Fl. patag., where Hooker's 

 figur of R. hydrophilus is reproduced under the name of R. truUifolius. Dusen' s R. 

 truUifolius is also = R. pseudotrullifolius (I have seen his material), and so is the 

 case with the species mentioned and figured by Schenck (11 B) and Werth in 

 their papers on Kerguelen plants. 



o — 10 cm. high, rosulate with creeping stolons up to 2 dm. long. The first 

 leaves entire, with Unear-obovate limb, obtuse, submerged, other leaves often floating, 

 long petiolate (—12 cm., according to the depth of water); blade obovate-orbicular, 

 broadly rounded or nearly subcordate at the base, 10—20x10 — 15 mm., 3 — 5-cleft; 

 lobes obtuse, the apical one longer than the lateral; petiole sheathing. FloAvers 

 sessile or nearly so, 6—8 mm. across; sepals 3, cucullate, broad ovate — nearly or- 



^ Transit of Venus Expedition, riiii. Tnms. Roy. Soc. Vol. 168. 



