xlvi PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



found together, and in some cases have the reputation of being the micro- 

 conidia and macroconidia of some species of Pleospora, bearing muriform 

 sporidia contained in asci. 



" I can only repeat that I do not think these moulds are the cause, but 

 the consequence of the disease. 



" N.B. — Since writing the above I have seen descriptions of the Italian 

 pest, Macrosporium Viola (Poll.), and it is certainly not the same as the 

 one I have described ; since, in that species, the spots are definitely 

 orbicular and regular, and the conidia are clavate, and attenuated at the 

 base (40 to 90 by 10 not at all resembling those described above, which 

 I must still, in default of better evidence, regard as a saprophyte." (For 

 further remarks on Violet Diseases see vol. xxvi. pp. 491-4.) 



Narcissus Disease - Hex. W. Wilks showed further specimens with 

 yellow stripes, both in the leaves and on the flower stems and in the 

 flowers, as a preliminary to the shrivelling of the tips of the leaves. A 

 similar condition has been seen in Iris. It was considered that the 

 disease was due to the presence of bacteria. Mr. Nicholson remarked that 

 Narcissus ' Sir Watkin ' was much subject to this discoloration, but that 

 when growing in the grass it was relatively free from it. 



Peach-tree Disease. — Some conversation ensued with reference to a 

 disease on Peach-trees in Essex, and it was desired that further specimens 

 of the roots and foliage might be sent. 



Peristcria pseudo-bulbs. — Mr. Gordon brought pseudo-bulbs affected 

 with a black fungus, on which Dr. Cooke undertook to report. 



Rootless bulbs of Hyacinths. — Mr. Gordon also brought specimens 

 showing this not uncommon phenomenon, which was attributed in the 

 first instance to the bulbs not having been matured, and in the next to 

 some check to growth. 



Plants exhibited. — Mr. Lynch brought from the Cambridge Botanic 

 Garden specimens of the following plants : — 



Kalanchoe somaliensis.— Figured in the April number of the Botanical 

 Magazine, from Sir Edmund Loder, collected by himself, also introduced 

 by the Cambridge Botanic Garden through Mrs. Lort Phillips. 



K. coccinea, K. crenata, K. Cassiopeia, from Dammann of Naples. 

 The last name is not in the Kcw Index, and the plant therefore probably 

 requires to be identified. 



Gnidia simplex. — Probably referable to G. carinata. 



Teconia australis. — Remarkable for the sunken glands seen on the 

 lower surface of the leaf, such as are met with in other genera of the 

 order. 



Aloe somaliensis, sp. n. — Introduced to Cambridge, also to Kew, but 

 not yet figured. 



Lopez ia miniata. — Not commonly seen, but interesting on account 

 of its mechanism for cross-pollination. The one perfect stamen is held in 

 tension by a folded leafy or expanded staminode below. On this part 

 the insect alights, as the best position from which to reach the two drops 

 of honey that seem to rest upon the knee-shaped bend of the upper petals. 

 The result is that the stamen is released and pollen is dusted upon the 

 insect. Self-fertilisation is impossible on account of marked proterandry. 



Ostcomeles anthyllidifolia. — Roughly, a Cratcegus or Hawthorn, with 



