CCXX PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY 



SCIENTIFIC COMMITTEE. 



September 9, 1913. 



Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, and nine 

 members present. 



Adaglossum x ' Juno.' — A Certificate of Appreciation to Messrs. 

 McBean of Cooksbridge for work done in raising Adaglossum x ' Juno ' 

 (Ada aurantiaca X Odontoglossum Edwardii) was unanimously recom- 

 mended. The plant is a remarkable cross between two very dissimilar 

 genera of Oncideae, structurally very widely separated, the Ada 

 having a simple raceme of orange-coloured flowers,with linear-lanceolate 

 segments forming a tube at the base, and only expanding on the outer 

 halves of the segments. Odontoglossum Edwardii is a strong grower 

 producing branched spikes 3 feet in length, and with flatly displayed 

 violet-purple segments. The form of the hybrid was nearest to Ada, but 

 the segments of the flowers were broader and more openly displayed J 

 the colour was bronze-purple with a yellowish lip which was twisted 

 in some flowers. 



Albino Wild Flowers. — Mr. Dipnall, of Hadleigh, Suffolk, sent an 

 albino form of Carduus nutans, with some notes on colour variations, 

 and added that he had recently discovered white forms of Vicia 

 lathyroides, Prunella vulgaris, Geranium lucidum, and G. dissectum. 

 These had occurred within a quite restricted area, and this suggested 

 the possibility that soil had something to do with the variation. He 

 had also found a bronzy-purple Papaver Rhoeas, pale pink Centaurea 

 nigra, and clear pink Myosotis palustris. 



Asters Failing. — Lady Howick sent Asters with decayed shoots. 

 The committee recommended the splitting up of the old plants as the 

 bases of stems sent were hard and had lost vitality. 



Japanese Grasshoppers. — Mr. J . W. Odell showed for Mr. Goodacre, 

 of Moulton Paddocks Gardens, a number of the Japanese grasshoppers 

 (Dieslrammena marmoraia) , and observed that the insects had established 

 themselves in the large conservatory at Moulton, and had also invaded 

 the mansion. The problem now was to exterminate them. They are 

 large, handsome insects in the larval stage. When fully matured they 

 will be very formidable-looking creatures. 



Kefersteinia laminala. — Kefersteinia is a section of Zygopetalum, 

 in the form of the flowers nearest to Promenaea, and in habit of growth 

 (which is leafy, the pseudo-bulbs being rudimentary) to Warscewiczella. 

 The species are chiefly Colombian, and there are some ten known 

 species, of which K. graminea is the best known. K. laminata has 

 white flowers with rose-coloured markings on the fringed lip. A 

 specimen was shown by Messrs. Armstrong and Brown, and a Botanical 

 Certificate was unanimously recommended to the plant. 



