376 THE FLORA OF CORISIVALL. 



{Brua maxima, Linn), has been found near Truro, by Mr. Lawson, 

 and near Falmoutli, by myself. We have records for the first 

 for Devon, but none for the second. 



One addition has been made to our fern flora, bringing the 

 number of species to thirty-one, or seventeen short of the total 

 for Great Britain, Ireland, and the Channel Islands. The new 

 species is Cryptogramme erispa, E. Br., the fortunate finder, Mr. 

 Winn, and the locality. West Cornwall. 



A few foreigners remain to be noticed. Matricaria discoidea., 

 DC, a North American and Asiatic plant, obtained its first 

 footing on British soil at Falmouth Docks a few years ago. It 

 is now the commonest weed around the Docks, and has wandered 

 south, west and north, into the parishes of Budock, Mabe, St. 

 Gluvias, Stithians, Perranarworthal, Grwennap and Mylor, in 

 each being a frequent object by the wayside. This summer I 

 have found it by the score quite eight miles north of Falmouth. 

 Its claim to a place in the next edition of the London Catalogue of 

 British Plants cannot be neglected. 



In the Looe district Mr. Hume has found Aster JSfovi-Belgii, 

 Linn, (^non Aiton), for the identification of which we are indebted 

 to Messrs. J. Britten, F.L.S., and E. G. Baker, F.L.S., of the 

 Natural History Department of the British Museum. To all 

 appearance the plant has taken a firm hold of the vallej' in which 

 it was discovered. 



Omphalodes verna, Moench., from South Europe, has found a 

 home in one wood in Gwennap, its acre of blue flowers 

 outrivalling the hyacinth. It may also be seen by the roadside 

 between Devoran and Truro. 



Mimidus Langsdorpi, Donn, a native of North America, 

 grows in great profusion at Trebarwith and Bodmin, and more 

 sparingly at Hessenford and the Loe Pool. But perhaps it is 

 most at home in a ravine near St. Ives. Gigantic plants have 

 been sent me from that place, together with photographs of the 

 J/^«^Mks-decked ravine, accompanied by a letter explaining that 

 the plant swarms there by tens of thousands. 



Impatiens Roylei, concerning which an interesting 

 correspondence has been going on in the Journal of Botany, has 

 taken a permanent stand in a valley between Liskeard and Looe, 



