280 SHORT NOTES. 
should prefer therefore, whilst adopting Dr. Mueller’s sac name to 
keep to the genus in which I had already put it, and to call the plant 
Cyathea epnseryte Involucre apart, it is so like Alsophila excelsa that 
= the first rough sorting I took it so be that species, an which the 
first glance with a lens at the sori dispelled.—J. G. Baxr 
CattiTRIcHE optusaneuLa, Le Gall, 1 Kent.—I enclose a small 
quantity of a Callitriche which Dr. ecowelt Syme tells me is 0. 
obtusangula, i gathered it last June in the marshes botirob Deal and 
0 
Boar Syivestris, Wallr, my Herts.—On Aug. 15th when 
botanising in company with Mr. R. A. Pryor, I no veces Rumest 
which looked different from ordinary . R. obtustfolius. On comparing 
the specimens pean with those in the British Museum, I find 
some of them be intermediate in characters between Mr. 
arren’s deters Dock, described in the last volume of this 
Journal (p. Ja and tab. 131) and the usual 2. peah tio rs 
riestt, Gren. & Godr.) of England. Others are nearly 
sylvestris, with the more erect branches and scarcely-toothed, Leen 
leaves, each of which bears a lates tubercle, Both Mr. Warren and 
imen Ks 
close to the River Lea pei Wwhen Hertford and Ware.—T. B 
| Mr. Blow’s specimens appear to strongly support the view expressed 
in the Paper i pig _tpeied (p. 140) that 2. sylvestris and R. Fries 
are merely the extremes of one species wih various intermediate 
states.— Ed. Jour ae Bot. | 
SOETES LACUSTRIS IN Sup ee A the list of sa plants 
compiled by the late Rey. "EW Willi Minister of Battlefie 
Lsoctes lacustris was put down for the reraiskelowii taniedl locality 
Elatine tion: a It does not attain here rome 
growth as in Llyn Ogwen and other Welsh lakes. The usual — 
si ch ‘ h spreading leaves, curved ards from 
Licuens ry Inpra.—I ete bases] been ri January up to 4 Alphas 
and reckoned upon a good harvest of Cryptogams, ys 
tern pk SR Lt ee ee 
§ 
