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LINNEAN SOCIETY OF LONDON 95 
the island of Mull, Mr. J. Starkie Gardner made rem rks concerning 
inferences to be drawn from the well-preserved leaves. He 
. ora comprises but one fern 
e 
merica and 
A 
0 
represented by one sword-shaped leaf. There are at least twenty 
species of Dicotyledons. A Flatanus obtains differing somewhat 
Credneria and Protophyllum of cretaceous age, This Mull flora, 
though possessing few novelties, is interesting, as supplying fresh 
confirmation of the view first propounded by Asa Gray, that 
formerly the entire northern temperate regions possessed a very 
orm flora. 
February 4.—Sir John Lubbock, Bart., F.R.S., President, in 
the chair.—Mr. Frederick J. Hanbury exhibited and made remarks 
on a series of forms of the genera Hieracium and Carex, obtained by 
m on the coasts of Caithness and Sutherlandshire last autumn, 
all being new to the British flora and representative of Scandi- 
navian plants. Among these were H. norvegicum Hr. and var. 
farinosa, C.aquatilis Wahl. var. cuspidata Loestad., C. rigida Good. var. 
infer-alpina Loeslid, and others, besides a large form of Euphrasia 
Reay Links, Caithness._Mr. W. H. Beeby drew attention to 
an example of Hquisetum litorale Kuhlerwein, a species new to 
i i urrey.—Mr. John 
gradations occur, from a distinct and appreciable greasiness throw- 
ing off moisture, to such as are easily wetted. A large series of 
leaves of different groups of plants have been studied by him, and, 
i in the 
irface. Class ILI. possesses bloom above, but none inferiorly on 
the leaves, and 100 per cent. of these have stomata on the upper 
urface. Class IV. have leaves with bloom on 8 eS, 
62 per cent. of them haying stomata above. From such analysis 
and other facts and data given, Mr. Darwin concludes that the 
