184 TRANSACTIONS OF THE [Sess lxxxvii 



leaves developed show only a connection extending to the 

 third and fourth layer of the chlorenchyma, and at no time is 

 there vascular connection between the buds and the vascular 

 strands of the scale. 



The first leaf of the bud is juvenile in character, consisting 

 only of a circular swollen base. The cortical tissues of this 

 leaf are chlorenchymatous and contain large starch grains. 

 The second and third leaves are transitional, with minute 

 projections representing the lamina. Their internal anatomy 

 corresponds with that of the first leaf. The first and second 

 leaves rapidly lose their contents and function as scale leaves. 

 The fourth leaf shows a persistent small green lamina with 

 characteristic ciliate margin. 



The production of adventitious buds on scale leaves of 

 various Monocotyledons has been described by Balfour,^ 

 and has been figured in Ornithogaluni thyrsioides by Green. ^ 

 It is of interest to record that by utilising for propagation 

 buds developed artificially from the scales of Haemanthus 

 hirsutus, early maturity is secured. Year-old plants so 

 propagated show as much growth as four-year-old bulbs 

 raised from seed. 



The Propagation of Camphor by Stem Cuttings. 

 By OoNA Reid, B.Sc. (With PL IX.-XI.) 



(Read 18th October 1923.) 



The camphor tree is usually propagated from seed, but 

 commercially may be propagated by cuttings (1). Mr. L. B. 

 Stewart at the Royal Botanic Garden, Edinburgh, discovered 

 that by using etiolated branches he could accelerate the rooting 

 of these cuttings considerably. A series of experiments was 

 made with normal and etiolated shoots and. the results give 

 conclusive evidence that such is the case. 



To secure etiolated shoots two large cheese-cloth bags lined 

 with brown paper were made and tied securely over two of 

 the top branches of a camphor tree, 30-40 feet high, excluding 

 light but leaving ample room for the development of the 

 portions of the enclosed branches. 



' Balff)ur, .J. H. : Class Book of Botany, 1854, p. 657. 

 * Green, R. : Manual of Botany, 1904, p. 34. 



