818 THE FLORA OF ANGLESEY AND CAEN ARVON SHIRE. 



island, but only a few plants and those not yet in flower. It 

 flowers in Sept." Mr. Griffith does not appear to know of this 

 Journal of Lightfoot's, in which some interesting finds — Elisma 

 nutans at Llanberis, for example — are recorded. 



Lloyd ia, although rare, is not likely to be exterminated from 

 its more or less inaccessible localities : it does not seem to be con- 

 fined to Cwm Idwal, as is generally believed; "the best time to- 

 find it in flower is from the 12th to 21st June." This rarity has 

 been nearly fatal to two British botanists: " Dr. Wilham Alexander 

 of Halifax, like Sir Thomas Gage, was near losing his life in 

 climbing to the dangerous summits where it grows wild."- Pota- 

 mofieton (rriifithu, which aptly commemorates its discoverer and the 

 author of this Flora, is still confined to Llyn-an-afon : "it grows 

 plentifully in the middle of the lake, submerged; but it is nearly 

 impossible to get it without a boat." Trichomanes radicans has 

 been seen by Mr. Griffith " growing undoubtedly wild, in one place 

 only" in Carnarvonshire, but the locality is wisely not further in- 

 dicated. The marine algae, lichens, and mosses are enumerated, 

 each being prefaced by a short introductory chapter. 



One or two points ofier themselves for criticism. The plant 

 published by Mr. Arthur Bennett (in Science Gossip for 1892, p. 

 198) as Ranunculus aquatilis viir. ca>nbricus is here raised to specific 

 rank as " jR. cambricus, Ar. Bennett." No reason is given for this, 

 nor is there any note on the plant. Viola sijlratica is said to be 

 " very common and generally distributed," but the forms Pwichen- 

 bachiana and Puvlniana are described as "rather rare," and only 

 one locality is given for each. The nomenclature follows that of 

 the eighth edition of the London Catalogue, and we are glad to see 

 as a consequence that Blackstonia replaces Cklom : but the 

 authority for the former name is Hudson, not Linuc'eus. We have 

 already grumbled at the spurious " Welsh " names (some of the 

 English ones, such as the " (Ederian Sedge " and the " False Wood 

 Brome Grass," are just as bad), and we regret the want of arrange- 

 ment by which the name of a species occurs at the foot of a page, 

 while all the information about it (without any heading) comes 

 over leaf. In cases of this kind, the name of the plant should 

 always be repeated at the head of each page, and when a genus 

 spreads over more than one page, the name of that should be 

 repeated in like manner. Carelessness in matters of this kind 

 mars many excellent books : the index of Nyman's Conspectus is 

 pecuUarly irritating in this way. The book as a whole is very well 

 got up, and does credit to the local printer, who, however, should 

 not have omitted to date his rather inelegant title-page. There 

 are six indexes where one would serve. 



Mr. Griffith has done a useful piece of work, and British 

 botanists will thank him for it. 



James Britten. 



Salisbury in Trans. Hort. Soc. i. 328. 



