548 SUMMARY OF CURKENT RESEARCHES RELATING TO 



sepiaria on pine wood, especially on railway sleepers. The fungus has 

 been recorded from all parts of the world with the exception of Asia, 

 and it attacks not only coniferous woods, but also alder and poplar. It 

 grows preferably on dead wood, though sometimes on living trees. A 

 full account is given of the morphology and development of the fungus. 

 C. Rumbold * found that wood attacked by C'eratostomeUa and 

 Graphium, whereby it was stained, had an acid reaction. He made 

 experiments by soaking the wood in soda or potash, and also by labora- 

 tory cultures, with the additions of the same alkalis to the culture 

 medium, and the fungus would not grow. 



Fungus Disease of Bag-worms, f — This disease, described by 

 I. B. Pole Evans, is due to a species of Isaria. It was proved by 

 inoculation experiments that the fungus was a true parasite. As the 

 bag-worm attacked is a pest of wattle plantations, it is hoped that the 

 disease may act as a check on the insect. Wattle-growing is one of 

 the leading agricultural industries in Xatal. 



Fungi from India. |--H. and P. Sydow and E. J. Butler publish their 

 fourth contribution to the flora of the East Indies. Among the interesting 

 species is a new Hapalophragmium, a Uredine that causes gall-formation 

 on the Ijranches of Acacia. Several new or rare species of Exohasidium 

 on tea, rhododendron, etc., are (Ascribed and figured ; one of them, 

 E. Biitleri, gives rise to witches' brooms. 



UredinesB. — 0. Treboux § records a series of inoculation experiments 

 and observations. Uromyces Festucse was successfully transferred to 

 Ranunculus illyricus. A Pucclnia on Diplachne serotina formed aecidia 

 on species of Allium. ^Ecidia on Cichorium Inti/bus were associated 

 with Pucccinia Utoralls on J uncus. Other cultures made were also 

 successful. Treboux remarks on the frequency of uredospores passing 

 the winter and infecting the new host-plants in the spring, and that in 

 cases where teleutospores also were formed. 



S. L. Ajrekar |1 publishes further observations on Gystopsora Olese. 

 Fresh young leaves were infected by the teleutospores, and produced 

 gecidiospores. No uredospores have been observed in this species. The 

 life-cycle is complete without the uredo-stage. 



W. P. Fraser 1[ has carried out a large series of cultures of heter- 

 cecious rusts in Nova Scotia. Twelve of the experiments, though not 

 entirely new, served to confirm and supplement previous work. Regarding 

 the new life-histories, he established that teleutospores of Necmm Farlowii 

 on Tsiiga canadensis infected the same species ; teleutospores of Melamp- 

 soropsis Fyrolse infected Picea mariana and P. canadensis ; Pucciniastrum 

 minimum was associated with Peridermium Peckii ; Uromyces Spartinae 



* Nat. Zeitschr. Forst. Landw., ix. (1911) p. 429 (22 figs.). See also Ann. 

 Mycol., X. (1912) p. 339. 



t Aun. Mycol., x. (1912) pp. 281-4 (2 figs.). 

 X Ann. Mycol., x. (1912) pp. 243-80 (11 figs.). 

 § Ann. Mycol., x. (1912) pp. 303-6. 

 11 Ann. Mycol., i. (1912) pp. 307-8 (2 figs.). 

 ^ Mvcologia, iv. (1912) pp. 175 -93. 



