Vol. IV., Pt. V. March, 1909. Price Rs. 5. 



6s. 8d. 



Annals 



OP^ THE 



Royal Botanic Gardens, 



Peradeniya. 



EDITED BY 



J. C. WILLIS, Sc.D., r.L.S. 



DIRECTOR. 



CONTENTS. 



PAGE 



LOCK, R. H. — A Preliminary Survey of Species Crosses in the Genus 



Nicotiana from tiie Mendelian Standpoint ^ . . 195 



SMITH, A. M. — On the Internal Temperature of Leaves in Tropical 

 Insolation, with Special Reference to the Effect of their Colour on 

 the Temperature ; also Observations on the Periodicity of the 

 Appearance of Young Coloured Leaves of Trees growing in Pera*- 

 deniya Gardens . . . . . . . . 229 



PETCH, T.— New Ceylon Fungi .. .. ..299 



H. M. RICHARDS, ACTING GOVERNMENT PRINTER, CEYLOK 



DULAU & CO., 37, SOHO SQUARE, W. 

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