XXVi PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



Species of Pinus. — From Mr. Rashleigh came cones of Pinus 

 El Doctor, which appeared to be very closely allied, if not 

 identical with Pinus patula. A cone of an undescribed species 

 collected by Captain J. Donnell- Smith, at a height of from 

 10,000 to 12,000 feet on the Vulcan de Agua, in Guatemala, was 

 also exhibited. Mr. Godman and other travellers make men- 

 tion of the forest composed of this tree, which forms a belt 

 round the mountain at the above elevation, but which does not 

 appear to have been described ; indeed, in the Loudon Herbaria 

 there are no specimens that correspond with it. It will be 

 described as Pinus aguensis. 



Timber and Cones of " Welling tonia." — From Mr. Leach, 

 gardener to the Duke of Northumberland, Albury Park, Guild- 

 ford, came a fine cluster of cones of Sequoia gigantea, and also 

 a transverse section of the trunk of a tree that had been planted 

 twenty years, and had grown with great regularity and rapidity, 

 as evidenced by the'rings. 



Ivies and the Frost. — Various leaves of Ivies from plants 

 growing on the same wall were exhibited, showing the varying 

 effects of frost on the different varieties— some being completely 

 killed, whilst others were scarcely if at all injured. The Hima- 

 layan form, as pointed out by Mr. Dyer, was the most severely 

 injured of all. 



The Bind of the Orange. — With reference to this subject, 

 Dr. Bonavia read a communication referring to the two speci- 

 mens shown at the lasVmeeting. M One had of course an envelop- 

 ing peel. Within this was a whorl of pulp carpels. Within 

 this again was a second whorl without peel on its outside. So 

 that we can hardly consider the peel as the outer side of the pulp 

 carpels. The peel is evidently not an essential part of the pulp 

 carpels. It can be suppressed, while the pulp carpels remain, 

 as in this case of the inner Orange. 



" But what is most interesting in this specimen is, that in 

 the centre of the inner Orange there were two strips of peel, 

 adherent to the placental margins of the inner carpels, each 

 strip having its oil-cell-coloured surface directed towards the 

 centre, and not, as is usual, towards the outside of the Orange. 



"To my mind, this would indicate that the peel is a distinct 

 whorl independent of the pulp carpels. In the doubling of this 

 Orange, we have (a) a peel whorl, (b) a pulp whorl, (c) another 



