BARBWICKE'S SCIENCE-GOSSIP. 



59 



on both sides, but rather more so above than beneath. 

 It is formed of four or five volutions, convex on the 

 upper side, and obtusely angulated round the cavity, 

 in consequence of the somewhat abrupt inflexion of 

 the inner margin towards the preceding volution. 

 The periphery presents two angles, one rather 

 obscure near the middle, the other more prominent, 

 runs round the margin of the lower disc. The 

 aperture is slightly oblique, and of a short heart- 

 shape, but irregular in its form, owing to the greater 

 convexity and the angulated inner margin of the 

 upper surface of the whorl. Planorbis biangulatus is 

 found in a fossil state, in the Eocene beds at Hord- 

 svell, Hants. 



Planorbis Sowerbyi, Bronn. — This is a small 

 depressed shell, slightly and nearly equally hollowed 

 out on both sides ; but the umbilical cavity is deeper 

 of the two. The volutions are three or four in 

 number, enlarging rapidly, convex above and flat 

 beneath, and having a sharpish keel on the periphery. 

 The whorls are much concealed, each embracing 

 about half of the preceding one, and the aperture is 

 very oblique, and of an elongated heart-shape. 



Found in the Upper Eocene beds at Sconce, Isle 

 of Wight. This species is believed to be very rare. 



Geo. E. East, jun. 



NOTES ON THE EIGHTH EDITION OF THE 

 LONDON CATALOGUE OF BRITISH 

 PLANTS. 



By Arthur Bennett. 



THESE notes are put together for the purpose of 

 aiding those botanists who have felt that the 

 changes introduced into the 8th ed. of the " London 

 Catalogue of British Plants " need some explanation 

 more than could be given in that list. I propose to 

 take the 7th and Sth editions and go through them 

 seriatim, noting the changes in name, and here and 

 there introducing such notes as seem needful. I 

 have awaited the completion of Mr. B. D. Jackson's 

 " Observations on the Nomenclature of the Sth ed. 

 of the London Catalogue," concluded in the November 

 number of the "Journal of Botany"; this will ex- 

 plain the somewhat late appearance of these notes. 



Thalictrum majus a is sunk under minus c. flexuo- 

 sum in Sth ed. b. Kochii becomes a var. under 

 saxatile, but it is almost certain we have not the true 

 Kochii of Fries. What the T. saxatile of Cambridge- 

 shire is, I cannot yet ascertain ; I have grown it for 

 three years ; dried a series, and twice sent it to Con- 

 tinental authorities : in both cases they will not give 

 it a name. Probably the No. 4 and var. b are really 

 T. Jacquinianum. 



The Batrachian Ranunculi are still far from satis- 

 factory, and yet need continuous study. No. 18, d. 

 Penicillatus, Hiern, should be taken out ; it is really 

 only pseudo-Jiuitaus, with floating leaves. I consider 



that \dc should be taken out, as I do not believe the 

 Scotch plant is the confervoides of Fries, but would 

 rather place it under 15. 



32, Ranunculus sardous, Crantz (not with a capital 

 S), is J?, hirsutus, Curtis, and an earlier name. 



35, R. jlabdlatus var. represents 32, R. clncro- 

 pltyllus, of the 7th ; Nyman saying that our Jersey 

 plant is not the plant of Linnseus. The var. should 

 properly read " Europreus,'' though Nyman prints it 

 as the Sth. 



50. At the time the Catalogue was printed, it was 

 uncertain whether our var. intermedium was the true 

 plant of Ledebour ; since then, Dr. Caspary has 

 pronounced plants, from several stations in Scotland 

 I sent him, to be the true plant; so " Led." should 

 be added, and "auct. angl." taken out. 



59, Glaucium Jlavum, Crantz, takes the place of 

 G. luteum, Scop. 



61, Rcemeria hybrida, DC, was accidentally omitted 

 from the 7th ed. It is the rare cornfield plant occur- 

 ring near Swaffham, in Cambridgeshire. 



62 £ should have the authority " Mill," instead of 

 "DC." 



76 c occurs but rarely, but is British. 



S5 bis will be Arabis alpina, L., discovered in Scot- 

 land last year (1SS7). 



SS, Arabis sagittata, is A. hirsuta, Br., of the 7th 

 ed. ; it has a var. b added, found in Ireland and 

 Sussex. 



96, Cardamine bulbifera, is Dentaria bulbifera, of 

 the 7th ed.,but the authority should be " R. Brown," 

 not " Syme." 



105 should have the authority DC, not " Reich." 



109 b. Hortii, Syme, is a var. found by the Rev. — ■ 

 Hort ; in some parts it is the commoner form. 



112, Thaliana should be Thalianum, Gay. 



120 should bepe/folialum, Crantz. 



135 b is a form often mistaken for D. tenuifolia. 



143, Lepidium Smithii, will become L. hctcrostylum, 

 Benth., and b. canescens, Gren. et Godr. 



153/; is a form gathered in Shetland and Fife, 

 probably elsewhere. 



161 is H. canum, Dunal, of the 7th ed. 



162 is H. vulgare, Gsertn., of the 7th ed. 



165 b should have " auct." instead of " Besser," as 

 the authority. 



172 is V. stagnina, Kitabel, of the 7th ed. 



179 is Poly gala depressa of the 7th ed. b. ciliata is 

 a form gathered on the Gogmagog Hills, in Cambridge- 

 shire. 



I Si, alter the authority to " Linn." 



191 b is a form found in Lancashire and elsewhere. 



192 is Silene iujlata, Sm., of the 7th ed. 



196, the census of counties should be " 5S," and 

 added to " a. anglica." 



209, authority should be "Scop." 



211 is Mcenchia of the 7th ed. 



217 c should be taken out and added o 21S, as var. 

 b. Edmonstoni, Beeby. 



