REVIEWS. 91 



parenchyma and also bolween this and the epidermis. The colls 

 smn-ounding those portions of the laticil'erons tubes which are not 

 in contact with the sieve tubes always contain starch. He further 

 states that tliere is no system of laticiferous tubes confined to the 

 leaf as was formerly supposed, but tliat those in the leaf form a 

 self-contained system with those in the other parts of the plant. 

 He concludes that those plants which possess laticiferous tubes 

 gain an advantage over others, in that they are able to remove 

 assimilated material from the leaf in mass, while those without 

 laticiferous tubes must remove it by osmosis, an admittedly 

 more difficult operation. 



CastiUoa belongs to the same family as Ficus elastica, while 

 Hevea and Ceara are members of the Euphorbiacece. The points 

 brought out are of interest, since the establishment of a connected 

 system of laticiferous tubes from the leaves to the stem makes it 

 possible that the rubber — or its immediate forerunner — may 

 after all be formed in th6 leaves. , 



T. P. 



The Germination of the Palms. 



[Recherches anatomiques et chimiques sur la germination der 

 Palmiers. Gatin. Ann. Sci. Nat. Bot. J. III., 191. 1906.] 



A detailed anatomical and morphological and chemical study 

 of the germination of the palms (including several sent from Pera- 

 deniya). It brings out notliing strikingly new, but is a thoroughlj' 

 worked out paper. 



J. C. W. 



The Anatomy of Palm Leaves, 



[Bobisut, O., Zui- Anatomie einiger Palmenblatter. Sitzb. d. k., 

 Akad. d. Wiss. in Wien CXIII., 1904.] 



The author has examined a ntunber of palm leaves with 

 reference to the climates they inliabit, and finds adaptation to 

 the climate in all. 



J. C. W. 



Flora of the Ceylon Coast. 



[TanslevandFritsch. The Flora of the Cejdon Littoral. New 

 Phytologist IV., 1905, p. 1.] 



A very clear and readable account of the coast flora by two 

 former visitors here, but containing nothing scientifically new. 



J. C. W. 



