1906. Vra^gur.^ 0)1 the Botany of Louqh Carra. 211 
Euoyiynnis europcnis, Rubi, Rosa canina, R. tomentosa, Pyrus 
Auaiparia, P. Aria. Viburnum Opulus, Uhnics niontana, 
Cory las AvcUana^ Popidus trcnmla, and more rareh' Prumis 
Aviu??i, SajFcbucus 7iigra, A Inus glufinosa, Salix capi'ca^ Oucrais 
Robur. All these are, I believe, native. On some of the islands 
conifers and other trees have been planted, and on others, 
which are close to mainland plantations, seedling Pines and 
Sycamores may be seen : but the flora of most of the outlying 
islands appears to be quite undisturbed, and I have no doubt 
that Uhnus^ Popuhis, and Primus Avium, which are sometimes 
questionable natives, are indigenous here. Of the trees and 
bushes mentioned, y'?^;^/^^;7^^ communis and Rhamnus cathariicus 
especial!}' haunt the woodland edge, along with tall herbaceous 
plants, such as Spircca Ulmaria ^wdi Eupatorium cannabiman. 
The largest trees are Fraxinus and Ulnms, attaining a height 
of about 20 feet. Below the trees, the ground is carpeted with 
Ivy, often infested with Orobanche Hcdare, and Prinnda vul- 
garis is abundant. 
So much for the zones of vegetation of the lake-shore. It re- 
mains to refer further to the flora of diflerent types of habitat 
which occur about the lake. 
Lake Pla7its. — The great povert}' of the aquatic flora has 
been already mentioned, but, as stated, in the upper lake, and 
especially at its northern end, hydrophytes flourish. The most 
interesting of these is Potaniogcton filifornns, found in 110 less 
than four stations, all of them being shallow sheltered sandy 
ba3-s. It is accompanied by Ranunculus Irichophylhis, Myrio- 
phylhim spicahim, and M. altcrniflorum. 
Streams, Marshes, and Bogs. — In the stream which enters the 
lake south-east of Moore Hall, Ranunculus Lingua and Myrio. 
pliylluni verticillatuni are abundant, also a Pondweed of 
puzzling appearance, on which Mr. Arthur Bennett makes 
the following report ; — 
" Interesting specimens. I have the counterpart of 5-our sheet in tuy 
herbarium from the canal between Woking and Frimlej* in Surre}-, and 
I have not put a name to it, though I have it in the heterophyllus cover. 
I have nothing exactly like it from Asia, America, or Europe, among 
some hundreds of specimens. In Europe the nearest is Irish, i.e., from 
' Lough Derg, 28/7/1882, B. King' ; but it is a poor specimen. The for- 
mation of fruit is against its being a hybrid, though at one time I thought 
