Mr. J. G. Jeffreys on the genus Scissurella. 319 applies it. If therefore we think it proper to drop Villars^s name, the next in antiquity is ISi. rosmarinifolium given by Haenke in 1788. Mr. Borrer has pointed out to me that Dodoens does not deserve the honour of being commemorated in connexion with this plant, the figure of which in his work (Pempt. 85) is only a reprint of L'ObeFs cut (Stirp. Hist. 226), and all that he says about it is contained in a single sentence which conveys no valuable information. It is probable that he never saw the plant. It cannot therefore be said that we are depriving him of any credit, justly due to him, when we neglect a name of only partial applicability to our plant and adopt another which belongs to it alone. P.S. — The time which has elapsed since the communication of this paper to the Botanical Society has allowed plants raised from seeds of E. Lamyi, taken from the specimens sent by M. Lenormand, to develope their winter form. The seeds were sown in a pot in the early part of the summer of 1855 ; they flowered in the autumn, and the flowering stems are now (Feb. 22, 1856) quite dead. Around the base of the old stems there is now a dense mass of rosettes, exactly resembling in all respects those of E. tetragonum. The plants have not been defended from the frost, but nevertheless the rosettes are in a healthy condition. Dr. Schultz remarks of the rosettes, that " si la plante n'est pas garantie contre le froid dans une chambre chauffee'' (Arch. ii. 53), they perish in the winter; but that if so defended they produce plants that flower, but do not develope any more rosettes. It remains to be seen if such will be the case with the plants in the Cambridge Botanic Garden. Mr. Borrer informs me that '^ a plant of E, Lamyi, raised from seed sent by Schultz, is (Feb. 9, 1856) showing tufts of leaves as strong as, and (as far as I can see) scarcely distinguish-able from, those of E. tetragonum, at this time in a north border in my garden, where it must have borne 24 degrees of frost [8° Fahr.] P These facts tend to the conclusion that E, Lamyi is not distinct from E. tetragonum. XXVI. — Note on the Genus Scissurella. By J. GwYN Jeffreys, Esq., F.R.S. It would be a boon to science if Dr. Gray, or some other natu-ralist who is well versed in general conchology, would enlighten me and probably many more of your readers by assigning a proper position and resting-place to this singular genus. I am