SCIENTIFIC COMMITTEE. 



xxxix 



Early-flowering Ash. — Mr. E. E. Turner sent from Coggeshall an 

 example of an early-flowering species of Ash which has been identified 

 as Fraxinus angustifolia. It always flowers in January, and is con- 

 spicuous by reason of the bright colouring of the flowers. Dr. Henry 

 believes this to be the very rare variety holotricha. 



Gall on Rubus odoratus. — Mr. Chittenden, F.L.S., showed a gall 

 on Rubus odoratus involving the whole of the stem and produced by 

 the fungus Coniothyrium Fuckelii. It had occurred at Wisley, and 

 the bark had a very rough, red appearance, and was many times 

 thicker than the normal, reaching a thickness of as much as §-inch 

 in some parts. 



Scientific Committee, February 4, 1913. 



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

 members present. 



Laelia Lundii, Reichb. and Warm. — Mr. Rolfe, A.L.S., exhibited, 

 on behalf of Messrs. Sander, a plant of this dwarf Brazilian species, 

 remarking that it is allied to L. Regnellii, but is easily separated by 

 its habit of flowering on the undeveloped growth, a character which 

 it shares with Cattleya Walkeriana. The leaves are narrow and fleshy, 

 and the flowers solitary, pale lilac with a veined blotch on the front 

 lobe of the lip. It is quite unlike any other Laelia in cultivation. 

 Its history is given in The Orchid Review, xviii. p. 62. 



Oncidioda x Cooksoniae. — The Orchid Committee referred the 

 plant Oncidioda x Cooksoniae to this Committee. It had been 

 exhibited by Messrs. Charlesworth. The cross is a rather curious 

 one between Cochlioda Noezliana ? and Oncidium macranthum S ; 

 the hybrid has something of the long raceme of its pollen parent, while 

 the flowers are larger than the seed parent and somewhat different 

 in colour. It was first raised by Mr. Cookson. A Botanical Certificate 

 was unanimously recommended to the plant. 



Crocus biflorus Weldenii. — Mr. Bowles showed a seedling from 

 Messrs. Barr of this form with a distinct sulphur tinge. He found that 

 seedlings of chrysanthus and biflorus ran into one another so as to 

 render it impossible to regard these as anything but forms of a single 

 species, as, indeed, Herbert had regarded them, grouping them under 

 the name C. annulatus. C. chrysanthus gave blue seedlings similar 

 to those of C. biflorus in colour. 



Bitter Pit in Pear. — Some pears were shown with brown spots 

 in the flesh similar to those frequently seen in apples. This spotting 

 is not the product of the attack of any specific organism, but is due 

 to some derangement in the normal development of the fruit. Mr. 

 Massee, V.M.H., recognized the spotting of the pear flesh as of similar 

 origin. 



