iii PROCEEDINGS OF THE EOYAL HORTICULTURAL SOCIETY. 



of the tough woody fibre of the original stock. In form they showed a 

 near approach to the well-known " Hollow-crown " type of Parsnip. Mr. 

 Baker said there was just a possibility that the plants had in one 

 generation been crossed with pollen from cultivated plants. He found 

 the roots far less liable to rust than the ordinary plants, though they 

 were not entirely free from it. 



Orchid malformations.— -Mr. Gurney Wilson, F.L.S., showed mal- 

 formed flowers of Odontoglossum Harry ano-crispum on behalf of Mr. 

 W. Bolton, of Warrington. There appeared to be no symmetry about 

 the multiplication of parts in these flowers, and Mr. Wilson remarked 

 that, as in the present case, when a portion is removed from an estab- 

 lished plant, in the next season it is not very unusual for the older 

 portion to bear malformed flowers, while the portions removed bear 

 normal flowers. He also showed a flower of Selenipedium caudatum 

 var. Lindenii, from Messrs. Charlesworth. In this variety the labellum 

 is not slipper-shaped as in the type, but is replaced by a very long and 

 tapering petal entirely similar to the two lateral petals ; there are also 

 three fertile stamens. The variety was figured by Reichenbach (Lindl. 

 Orchid. 28, 1846), under the name of Uropedium Lindenii. The form 

 occurs wild. 



Gummosis in Lemon. — Mr. Worsley showed a branch of a Lemon 

 with leaves beginning to shrivel, attacked in its lower portion by gum- 

 mosis, a considerable mass of gum exuding from the stem, and the bark 

 being browned all round for a considerable distance. It was remarked 

 that in some cases gumming of trees had been found to be associated 

 with the presence of a fungus, and often appeared to start at a wound, 

 but in the present case no wound could be discerned. Sir Daniel Morris, 

 V.M.H., said that in Florida the gumming usually occurred in the trees 

 where they had been budded, and Mr. Fawcett said he had seen trees 

 affected in a manner similar to that shown by Mr. Worsley 's example in 

 the West Indies, where the disease was thought to be associated with too 

 liberal manuring with nitrogenous manures, or with heaping earth around 

 the stems. The disease was treated by cutting out the affected portion 

 and dressing the wound with tar. 



Eucrosia bicolor.- — Mr. Bennett-Poe, V.M.H., showed flowers of this 

 peculiar plant from Miss Willmott's garden. The plant was figured in 

 1817 in the "Botanical Register," t. 207. 



Grease bands. — Mr. W. Voss reported that no winter moths of any 

 kind had been caught on the grease bands placed on the fruit trees at 

 Enfield since the end of November. 



Diseased plants. — Mr. Massee, V.M.H., showed a piece of a Rose 

 stock attacked by the fungus Leptosphaeria Diplodia, a well-known 

 fungus on the stems of the Dog Rose and rarely attacking the cultivated 

 varieties. In this case 15,000 bushes had been affected. Mr. Massee 

 also showed shoots of Apple affected by the winter stage of the Apple 

 scab, Fusicladium dendriticwn. Mr. Massee also showed a branch of 

 Pear which had been damaged by hailstones in the summer. The 

 wounds had healed, and were now free from danger of attack from fungi, 

 but the circular places which had been damaged by the stones had dried, 

 and were sunken and black. 



