48 THE JOURNAL OF BOTANY 
n. 805, chiefly due to trying to adjust the involved descriptions 
instead of examining the actual specimens, the matter is at once 
cleared up by comparing the authentic examples in Herb. Kew. 
(distributed by Schultz). In n. 404, the leaves are shorter than the 
internodes and shorter than the peduncles, and all petiolate, and 
the plant is R. divaricatus. In “ R. Drouetii” of English authors 
the leaves are longer than the internodes. In n. 805 the leaves are 
and Godron, who is unusually accurate, says that the peduncles are 
short but somewhat longer than the leaves. Schultz’s n. 1303 is 
also R. trichophyllus. 
In English floras the plant first appears as a species distinct 
indebted to Grenier and Godron’s Fl. de France. Babington had 
previously pointed out the different characters of the two species 
in a paper in the Annals and Magazine of Natural History, 1855, 
p- 390, on the suggestions of Rev. W. W. Newbould made from 
observations on Cambridgeshire specimens of the two plants some 
time before (in 1846). There is every reason to believe that 
collapse together, when the plant is withdrawn from the water 
As Mr. G. C. ce ‘Ri. Drouetti” in his Fl. Berkshire 
(p. 10)—*it would be rather curious to find that it is limited to the 
area of the Oxford and Kimmeridge Clays.” Again, in Middlesex 
the only chalk portions are two narrow strips in the extreme 
north-east and north-west of the county. Trimen and Dyer 
remark in their Flora— There seems, however, to be but one 
form [of the two species] in the county,” and as far as I have 
seen this is R. divaricatus ; certainly none of their specimens in 
Herb. Mus. Brit. belong to trichophyllus. 
Iconography of g 
woodcuts, there seem to be only three good plates of the common 
orm : einmann, Phytanthoza-Iconographia, ii. p. 198, t- 
853, fig. e (1745); (2) Pe es Fl. Heft 67 (1835), “ R. 
ili tothria” ; gl. Botany Suppl. 2967 (Aug. 
peste R Drouetii,” drawn from a plant asthalad by Rev. W. W. 
uld at Comberton, in Cambridgeshire (and reproduced in 
ed. 3). Of var. 4 a figure is given in reyn l.c, 
II.—Ranvncuus TRICHOPHYLLUS Godron. 
Gren. et Godr. Fl. de France, i. p. 23 (Noy. 1847) ; Godron 
Fl. de Lorraine, ed. 2, i. p. 15 (1857); Boreaw Fl. Centr. France 
ed. 3, ii. p. 11 (1857); Lamotte Prodr. Fl. Plat. Centr. France, i. 
