152 Linnean Society. [Nov. 4, 



raphe lateral occur in several instances in the same family and pos- 

 sibly in the same genus (as the vertical and horizontal positions of 

 the seed in Chenopodium appear to be equivalent characters), yet 

 raphe aversa, or even raphe lateral, and raphe next the placenta are 

 not known to occur in the same family — pendulous ovules only being 

 understood. And also, that as far as his inquiries go, raphe next 

 the placenta in pendulous ovules is unknown in Endogenous plants. 



November 4. 



R. Brown, Esq., President, in the Chair, 



Richard Parr Bamber, Esq. and HughF. C. Cleghom, Esq., M.D., 

 were elected Fellows. 



Read a communication from J. Couch, Esq., F.L.S., recording 

 the discovery on the Coast of Cornwall of a species of Onchidium 

 allied to 0. Celticum, Cuv. 



These mollusca were found by Mr. Couch in great abundance on 

 a confined space of rocks at West Coombe, in Lantivet Bay, between 

 Polperro and Fowey, congregated in small groups about a foot or 

 two from the surface of the sea, where the waves break over them, 

 ascending and descending with the tide so as constantly to maintain 

 nearly the same relative position. When wholly immersed (in an 

 attempt to preserve them alive) in a bottle of sea- water, they did 

 not survive the day. 



Read an Extract from a Letter addressed to the President 

 by W. K. Loftus, Esq., the Naturalist attached to the Turco-Persian 

 Boundary Commission, dated at Kerrind, Persia, August 6th, 1851, 



In this locality, the neighourhood of which abounds in plants pro- 

 ducing foetid gums, Mr. Loftus, acting on Mr, Brown's recommen- 

 dation, had procured several different kinds, of which, and of the 

 plants producing them, he gives some particulars in his letter. 

 Two of these belong to the genus Dorenia, Don ; and a third, de- 

 rived from a plant, which Mr, Loftus regards as belonging to the 

 tribe Silerid(e, is called in Kurdish " beeje." The three gums have 

 the same general properties, and grow on a limestone soil, at the 



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