148 MR. А. D. COTTON ON CRYPTOGAMS 
carried out entirely in the wild and lesser-known West Falklands. The 
foliaceous lichens of this region are particularly fine and abundant. As 
will be shown later, Mrs. Vallentin’s collections provided not only many 
additional records and several novelties, but also give for the first time a 
clear idea of the fungus flora of the islands. Since her plants were worked 
out, a small set of marine algæ providing several items of interest and a few 
additional names has been examined. This collection was made by Miss F. 
J. Hennis in West Point Island in 1911, and was sent to Kew on loan. 
2. FLORISTIC Nores. 
The cryptogamic flora of the Falklands is from a geographical standpoint 
the same as that of Fuegia, the difference of its character—shown in the 
absence of many species—being due to habitat-conditions, such as the lack 
of mountains, the absence of woodland, and the consequent severe exposure 
to wind. Amongst the Phanerogams there are a number of endemic species, 
15 are listed by Skottsberg, but this does not appear to be the case with the 
light-spored cryptogams. To the complete lack of trees must be attributed 
the absence of many lichens and also the wood-loving fungi, though with 
regard to the former, owing probably to many forms being adapted to bleak 
conditions, the list includes a large number of foliaceous and fruticulose 
species, and some of these occur in profusion. Тһе marine alge (though 
behind Fuegia in point of numbers) are inagreement with the view expressed 
above. The conditions necessary for their growth are practically the same 
in the two areas; hence, though each possesses species not so far found in 
the other, the flora is essentially one. For these reasons there is no need 
to draw comparisons between the two areas; further particulars can be 
obtained by consulting the lists in the present paper and the various 
Fuegian and Magellan enumerations which have been published. 
A few remarks on the Falkland flora as represented by each group of the 
Thallophyta are given below, the total number of species listed for the 
respective groups being as under :— 
Marine alge . . . . 148 
Fresh-water alge . . 53 
Lichens . . . . . 15 
T" M DE 
Fungi . . . . . . 33 
(a) Marine Algv.—The proportions of the various groups are as follows :— 
Cyanophyceie . . . 4 
Chlorophycee . . . 25 
Pheeophycee. . . . 41 
Floridee . . . . . 18 
148 
