THE DISTRIBUTION OF LUNULARIA CRUCIATA 383 
and the effect of this on other species. Mr. W. E. Nicholson 
sends me this interesting note from Lewes, Sussex :—‘‘ Years ago 
Marchantia was not uncommon in our garden and in pots in 
underneath, under somewhat sclerophytic condition 
invariably consider it to be a native. If a garden is not at the 
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nor are there any specimens of it in the Edinburgh Herbarium 
except one of Taylor’s, in Greville’s collection, from erron, 
Ireland, dated 1844. That most accurate botanist, Greville, does 
not give it in his Flora Edinensis, 1824 gives Marchantia as 
“plentiful,” which would at the present time rather to 
Lunularia. At the same time he mentions Frullania Tamarisci 
as “plentiful” and F. dilatata as “ extremely com e 
