lxXXvi PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



Lcelia purpurata, dimerous. — Dr. Masters exhibited a draw- 

 ing of this peculiarity, in which the normal trimerous arrange- 

 ment was reduced to a dimerous one. 



Bosa simplicifolia. — He also showed specimens of this 

 remarkable Rose — a native of Persia or Afghanistan. Its 

 peculiarities lay hi the fact that the blades were simple, and in 

 the absence of stipules, unless certain thorns near the base of 

 the leaves should prove to be such. The flowers were metamor- 

 phosed, and would be reported upon by the exhibitor. 



Hippeastrum {Amaryllis) double. — This had been pronounced 

 to be unique, but Dr. Masters exhibited a photograph received 

 from St. Kitts of a double specimen which had occurred there. 



Torreya myristica. — Dr. Masters showed specimens of both 

 male and female plants from the gardens of the Marchioness of 

 Huntly, Orton, Peterborough. 



Asarum, Species. — Mr. Lynch sent specimens of a new and 

 fine species A. Hartwegi, Wats. ; also the rare A. caudatum and 

 the commoner A. canadense and A. europseum for comparison, 

 all from the Botanic Gardens, Cambridge. A vote of thanks was 

 given to him. 



Waterglands (?) in Ferns. — A communication was received 

 from Mr. Lowe giving an account of " some experiments on the 

 formation of dew on the veins of young Ferns and on prothalli." 

 Mr. Lowe observed that minute drops of dew appeared at the 

 apex of each vein on the young fronds of Scolopendrium and 

 Polystichum under the bellglass. The drops of water did not 

 form on the prothalli or its first frondlets, but on these " there 

 is a curious appearance of brilliant golden-looking rings that are 

 scattered in all directions. This moisture is formed on the under 

 side, and shines through the semi-transparent prothalli and first 

 frondlets. It is apparently a circular drop, the circumference 

 alone being apparent from the upper side." The phenomenon 

 here described was presumably attributable to water pores, but was 

 referred to Professor Ward for investigation. 



Batrachospermum moniliforme. — Mr. Henslow exhibited this 

 plant from Cherryhinton, Cambs. 



Diplosis pyrivora (Riley). — Mr. McLachlan sent specimens 

 of young Pears from Hastings attacked by this insect, which had 

 burrowed through the interior, the Pears rotting in consequence. 

 It appears to be of not very common occurrence. 



