REVIEWS. 543 



REVIEWS. 



[The items wliich appear mider this head are wi-itten primarily- 

 for Ceylon readers, and deal \vith papers and books of local 

 interest.] 



Fischer, Ed. Beitrage zur Morphoiogie und Systematik der 

 Phalloideen. Annales Mycologici, VIII., pp. 314-322 ; 1 plate. 



Includes an account of the development of Clathrella 

 delicata (B. & Br.) Fetch, from material supplied from Coylon. 



Fischer, Ed. Genea Thwaitesii (B. & Br.) Fetch und die ver- 

 wandtschafts-verhaltnisse der Gattung Genea. Ber. d. Dentsch. 

 Bot. Gesell., Bd. XXVn., pp. 264-270 ; 1 plate. 



Tliis fungus was originally described from Ceylon as 

 Hydnocystis Thwaitesii B. & Br. Fischer agrees, after an 

 examination of material sent from Ceylon, that it should be 

 referred to Genea, and gives an accoimt of its structure with 

 reference to allied forms. 



Magnus, W. Die atypische Embryonalentwicklung der Podos- 

 temaceen. Flora (Neue Folge), Bd. V., pp. 275-336 ; 4 plates. 



The author has carried out investigations on the embry- 

 ology of Lawia zeylanica Tul., Podostemon suhuJatus Gardn., 

 Dicreea elongata Tul., Hydrobrium olivaceum (Gardn.) Tul., 

 and Farmeria metzgerioides (Trimen) Willis, wliieli ho col- 

 lected in the Mahaweli-ganga at Hakinda during liis stay at 

 Peradeniya in 1908-9. His account consists of a special 

 part, which includes a description of the embryo of each 

 species, and a general account of the comparative embryology 

 of the Podostemacea9 and its ecological and morphological 

 significance. 



Thaxter, R. Preliminary descriptions of new species of Rickia 

 and Trenomyces. Proceedings American Acadcmv of .Arts and 

 Sciences, XL VIII., pp. 365-386. 



From material collected at Peradeniya the author describes 

 Rickia discopomse and Rickia eleyans, botli nn n spi-f.j.s of 

 Discopoma. 



Dingier, H. Zur oekologischen Bedeutung der Flugel der 

 Dipterocarpaceen-Fruchte. Engler's Botanisciie .lahrhnclicr, l-'iiiit- 

 zigster Band, Supplement Band, Fest-Band fiir A. Engler, V.)\\, 

 pp. 1-14. 



The author has carried out experiments with the fruits of 

 Dipterocarpus zeylanicus, Shorea stipidaria, Shorea {? oblotuji- 

 folia), and " Hopea farjinea," obtained from Ceylon, and 

 concludes that the well-known wings of these fruits favour 

 their distribution by prolonging tho time of descent and .so 

 permitting them to be borne by the wind to a greater distan(;c 

 in a horizontal direction. 



