SCIENTIFIC COMMITTEE. 



clxxxi 



of this uncommon Amaryllid, native of the Andes of Ecuador, the 

 flowers of which are at first green, changing to bright yellow, and 

 have much exserted stamens, the filaments being double the length 

 of the long tubular perianth. It is figured in Rejtigmm Botanicum, 

 t. 167. 



Peculiar Oak leaves. — Mr. E. A. Bowles showed oak leaves with 

 extremely narrow, almost linear lobes. No member of the Committee 

 had seen lobes of this character before, and watch will be kept to 

 see whether the occurrence of this kind of foliage is persistent. (This 

 was subsequently identified by Dr. A. Henry as an uncommon variety 

 of Quercus pedunculata called scolopendrifolia.) 



Snowdrop with stem. — Mr. Bowles showed some snowdrop 

 bulbs produced at the apex of a stem about J inch in length, which 

 had apparently proceeded from the base of the old bulb. It was 

 thought probable that the occurrence of this stem was due to the 

 late date at which the bulbs had been planted in stiff loam, bringing 

 about an aberration of growth. 



Variegated Er odium cicutarium. — Mr. F. J. Chittenden showed 

 leaves of a variegated Erodium cicutarium from his garden. 



Growth of Apple Trees. — He also produced figures showing the 

 average growth made by different varieties of bush apple trees 

 on Paradise and Crab stocks in each of three years, half of which 

 trees had been pruned in the season of planting, and half not, 

 subsequent pruning being done to all annually so as to shape the 

 trees. The trees were all of the same age, and as nearly alike when 

 planted as possible. There was, of course, considerable difference 

 in the rate of growth in different varieties, and this was modified 

 according to whether they were on the Paradise or Crab stocks, but 

 comparing the same variety on the same stock pruned in the season 

 of planting with those not pruned in the season of planting differences 

 in subsequent behaviour were found according to whether they were 

 on Paradise or Crab stock. The following figures are typical of the 

 trees on Paradise stock : — 



Total growth in 

 1912. 1913, 1914. 

 ft. in. ft. in. ft. in. 



' Peasgood's Nonesuch ' (average of five 

 trees pruned in season of planting, 



winter 1911-12) . . . . 14 2 J 30 8 66 9 



Average of five trees not pruned in 



season of planting, winter 1911-12 . 8 loj 28 9 5^ 7 



The following are typical of those on Crab stock : — • 

 ' Peasgood's Nonesuch ' (average of five 

 trees pruned in season of planting, 



winter 1911-12) . . . • 15 7 43 99 ^ 



Average of five trees not pruned in 



season of planting, winter 1911-12 . 13 10 39 9 no o 



