CXXviii PROCEEDINGS OF THE ROYAL HORTICULTUllAL SOCIETY. 



Scientific Committee, July 2, 1901. 

 Dr. M. T. Masters, F.R.S., in the Chair, and thirteen members present. 



Orchids, Malformed. — Dr. Masters reported on the flowers sent to the 

 last meeting. He found the Cattlcya to be dimerous, and the Odoiito- 

 (jlossiivi to have five perfect stamens, the other parts being variously 

 twisted and deformed. 



Harfs-tongue, eibiwnnal form. — Mr. C. T. Druery exhibited a plant 

 with the fronds variously modified, being subhastate, emarginate, sub- 

 pinnate in places, and much crested. It was a seedling of doubtful origin ; 

 but a similar plant had been found wild many years ago. 



AristoIocJiia trilohata. — Mr. Odell showed flowering shoots of this 

 species, remarkable for the form of the flower, in that the calyx closely 

 resembled a pitcher of Nepenthes, having a lid provided with a long 

 pendulous streamer. 



Cheircinthus alpinus, pods proliferous.—^lv. Odell showed specimens 

 of this not uncommon monstrosity in certain Cruciferae. The pods were 

 swollen at one place, within which was a double flower having several 

 crumpled yellow petals and abortive stamens in the place of an ovule. 



Silene and Anthijllis. — Mr. Holmes found that the specimens sent to 

 the last meeting proved to be S. hirsuta, and a variety of A. Vulneraria. 



Campanula, fasciated, — Mr. Holmes exhibited a large terminal flower 

 of the common Canterbury Bell. It consisted of a "multifold" flower 

 of numerous parts ; also a flower of Paris quadrifolia, with six leaves to 

 the whorl, but having the usual 4-merous perianth. 



Plymouth Strawberry. — Mr. Holmes brought interesting specimens of 

 the " Plymouth Strawberry," which he has had growing for ten years. It 

 is remarkable for having a foliaceous flower, the petals and stamens being 

 represented by numerous small leaves, as in the Green Rose and Alpine 

 Strawberry ; while each carpel on the receptacle consists of a three- 

 pointed leaf, or rather petiole, rolled up upon itself. There is no trace of 

 an ovule within it. 



Beech with palmatcly -nerved leaves. — Mr. Holmes also showed 

 specimens of this peculiarity, apparently due to some insect attack. 

 Mr. Saunders undertook to examine it. 



Proliferous Cones of Cryptonieria. — ]\lr. Worsdell brought specimens 

 of this monstrosity, which Dr. Masters observed was not an uncommon 

 production in that particular tree. 



Lily Fan/ji. — Dr. Rendle showed stems badly attacked by a fungus. 

 Dr. M. C. Cooke reports as follows upon it : — 



" It may be reasonably assumed that the Lilies exhibited were suft'ering 

 from the attack of the ' Lily disease,' so called by Marshall Ward in his 

 memoir (in the Annals of Botany, vol. ii. p. 319, pi. xxii. to xxiv., 1889). 

 This is stated to be due to a white mould, of the genus Botrytis. Most 

 of the species are only a conidial stage of a trumpet-shaped fleshy 

 fungus called a Peziza in past times, but now dignified by the name of 

 Sclerotinia, because the cups are developed from a hard sclerotium, which 

 is the hybernating mycelium of the mould. In the present instance I 

 am not aware that the sclerotium has been observed, and certainly not 



