1 RANUNCULACE^. 81 



North limit in 



Estimate of provinces 14. Estimate of counties 60. 



Latitude 50 — 55. British (?) type of distribution. 



Agi-aiian region. Inferagi'arian — Midagrarian zones. 



Descends nearly, or quite, t9 the coast level. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 50 — 47. 



Native. Lacustral ? Attention having only of late been 

 directed to this plant, as possibly a distinct species from R. 

 hederaceus, its real distribution has yet to be ascertained; it 

 will probably be found through England and the Lowland 

 provinces, if not also in the Highlands. Some of the lo- 

 calities, formerly recorded for R. hederaceus, may likely 

 belong to this present plant ; but where seen by myself, it 

 grows intermingled with R. hederaceus. I have hitherto 

 seen R. Lenormandi only out of water, though in spots 

 which must be under water in the winter season, and hable 

 to be flooded in summer. In describing the distribu- 

 tion of R. hederaceus, in Part First of a former work, I 

 remai'ked that "there are several strongly mai'ked varieties, 

 both as to the foiTo of the leaves, and fomi and size of the 

 petals, though these ai'e not dignified by different specific 

 names, as are the varieties of the still more changeable R. 

 aquatihs" (Jan. 1843.) This was something like a fore- 

 thought of what was soon to come. In the following May, 

 Mr. Babington's Manual appeared, which recorded one of 

 the varieties, that of the larger-sized flowers ; and next 

 winter, the same variety was introduced into the ' London 

 Catalogue of British Plants,' on account of its larger and 

 more lobed leaves. It has since appeared that the vaiiety 

 ' grandiflorus' (Bab. Man.) and 'paititus' (Lond. Cat.) was 

 attracting attention on the continent also ; being figiued as 

 a new species under name of R. Lenormandi. As some- 

 thing different from R. hederaceus, however, it had been 



M 



