Botanical Society of Edinburgh. 499 



Mr. M'Nab exhibited a flowering plant of what is now generally- 

 cultivated in the British gardens under the name oi Bryanthus erectus. 

 The original plant was produced during the year 1841, by Mr. James 

 Cunningham of the Comely Bank Nurseries, from seed of the Phyl- 

 lodoce (Menziesia) empetriformis, fcrtihzed with the pollen of Wio- 

 dodendron ChamcBcistus. This mule is exceedingly beautiful and 

 flowers abundantly in the open border during the months of May and 

 June, and is one of the few instances we have of a hybrid raised be- 

 tween two distinct genera. 



The following communications were read : — 



1. "On a supposed new species of Rubus.'" By Fenton J. A. 

 Hort, B.A. (See p. 374.) 



2. "Notice o{ Narcissus {Ajax) lobularis, Haw." By John T. 

 Syme, Esq. Mr. Syme exhibited a plant of this Narcissus in flower, 

 the bulb of which he had received from the Rev. W. T. Bree, AUesley 

 Rectory, who cultivated it in his garden from roots found apparently- 

 wild near Tenby, in Pembrokeshire, by the late Joseph Boultbee, Esq. 

 It differs from the N. Pseudo-Narcissus in having the cup divided 

 into six distinct lobes, and of the same colour as the segments of the 

 perianth, which are broadly ovate and rather sharply acuminate. It 

 is a very handsome plant, and unlike any species known in gardens. 



Dr. Balfour read a communication from the Rev. W. Smith, of 

 Lewes, giving a detailed account of his examination of the Diatoma- 

 ceous Peat from Cantyre, referred to in a previous report. The fol- 

 lowing is a list of the species detected by him : — 



The above are all of them freshwater species ; in the inner deposit 

 occur numerous spicula oi Spongillafluviatilis. One of the rare spe- 

 cies mentioned above is Stauroneis acuta ; this Mr. Smith has also 

 found in the Irish deposit : it is figured in the Histological Catalogue 



32* 



