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XIX. On Chamcemeles coriacea and Sempervivum glutinosum. 

 By the Rev. R. T. Lowe, B.A. Travelling Bachelor to the Uni- 

 versity of Cambridge. Communicated by Francis Boott, M.D. 

 F.L.S. 



Read June 2, 1829- 



In the 13th volume of the Linnean Transactions, Mr. Lindley 

 has described, under the name of Chamcemeles coriacea, a plant 

 which was originally discovered by Masson in Madeira, and 

 named Cratcegus coriacea. This description appears to be the 

 only one, founded upon an examination of specimens, in exist- 

 ence ; the accounts given by DeCandolle and Sprengel in their 

 latest works being apparently wholly derived from it, and not 

 claiming to rank as independent descriptions by furnishing any 

 fresh or additional particulars of their own. It may therefore 

 be inferred that the plant is of sufficient rarity to render the 

 completion of its history a matter of interest. This must be my 

 apology for undertaking the task without having it in my power 

 to consult Mr. Lindley 's original paper and description ; for 

 which reason I shall confine myself principally in this place to 

 an account of the fruit, which, not being mentioned by DeCan- 

 dolle and only guessed at by Sprengel, seems to have remained 

 hitherto unknown. The present description then is to be con- 

 sidered in the light of a supplement to the original observations 

 and description of Mr. Lindley ; on which account I am de- 

 sirous it should be honoured by a place in the Transactions of 

 the Society in which they have already appeared. 



3 E 2 " C. coriacea 



