Original Articles. 
. ON RUMEX OBTUSIFOLIUS. 
By Henry Tren, M.B., F.L.S. 
: (Tas. 131.) 
Tuoven few native plants are more familiar than the broad-leaved 
Dock, ubiquitous throughout the country and common enough in 
. waste ground and gardens in London itself, yet from its very frequency 
R. obtusifolius was very well known to the ante-Linnsean botanists, 
and s this country described by Johnson, Parkinson; Ray, Morison, 
ud ri i 
been followed by Meissner, nor by Grenier and Godron, who in their 
‘Flore de France” have considered, with greater probability, Lin- 
neus’ 2. divaricatus to be a variety of R. pulcher, whilst they have | 
named Fries’ R. divaricatus, R. Friesit, Nyman has called the same 
plant 2. Wallrothii.* ; 
In some of the more recent British Floras (Babington’s, Boswell- 
Syme’s) attention has been called to this continental 2. sylvestris as a 
plant to be looked for in this country. was, therefore, with great 
satisfaction that I was able to identify with Wallroth’s species ; plant 
n 
collected on the Thames bank by Mr. Warren, as state in Journ. 
Jolius (R. Friesii, Gr. & Godr.), it will: be sufficient here to call 
attention to those by which it differs from that plant. These are 
ce A a 
* In Journ. Bot. 1872, p. 308, this name was inadvertently referred to 
R. sylvestris instead of to R. Friesii. 
N.s. vot. 2. [may 1, 1873. ] K 
* 
