SCIENTIFIC COMMITTEE, FEBRUARY 9. 



xxi 



Snowdrops. — Flowers of G. Alleni, G. Elwesi, and G. nivalis 

 var. Imperati were shown from Mr. Burbidge. 



Monstrous Flowers. — A parti-coloured Tulip from Mr. 

 Marshall and a curious Cypripedium Dayanum from Mr. O'Brien 

 were shown, and will be reported on by Dr. Masters at the next 

 meeting. 



Disa grandiflora. — Messrs. Veitch showed a plant with a 

 thick fleshy creeping rootstock, bearing leaf-shoots, by means of 

 which the plant could be propagated. 



Scientific Committee, Maech 8, 1892. 



, D. Moeeis, Esq., in the Chair, and seven members present. 



Adventitious Buds on Bibes. — Mr. Burbidge sent specimens 

 of these productions on Bibes aureum, to show that the conjec- 

 ture advanced on a former occasion, to the effect that the swell- 

 ings in question were due to constriction and to the accumulation 

 of moisture by a ligature, such as a shred, was not tenable, as 

 in the case now sent the plant grew as a shrub without any such 

 ligatures, and yet these swellings were produced as in a burrknot 

 Apple. 



Hellebores. — Dr. Miiller stated that he had performed experi- 

 ments similar to those detailed at a previous meeting by Mr. 

 Burbidge, and, owing to the diversity of the results obtained, 

 concluded that the slitting of the flower-stem longitudinally had 

 no definite relation to the length of time that the flowers re- 

 mained unwithered. Dr. Scott stated that he had examined 

 the anatomical construction of H. niger and H. orientalis, and 

 found that the conducting system is much more completely 

 developed in the quickly withering H. orientalis than in the 

 long-lived H, niger. Possibly the greater amount of transpira- 

 tion due to the presence of leafy bracts below the flowers of 

 H. orientalis might have something to do with the more rapid 

 withering of the flowers. 



Two- coloured Tulip. — Dr. Masters reported that he had ex- 

 amined the Tulip exhibited at the last meeting, and found that 

 the distribution of the colour was as follows : One of the outer 

 segments, that nearest the axis, or the posterior part of the flower, 



