174 



Mycologia 



middle of April studying the collections of Inocybe in prepara- 

 tion for the publication of this genus in North American Flora. 



Mr. Lex Hesler, of Cornell University, has been granted a 

 year's leave of absence to study plant diseases in Porto Rico. He 

 sailed for Mayagiiez on February 10. 



Mr. H. E. Thomas, instructor in botany at the Virginia Poly- 

 technic Institute, sailed on March 3, to Mayagiiez, to take up 

 work in plant pathology at the Federal Experiment Station, 

 Porto Rico. 



A wilt disease of the columbine has been traced by Taubenhaus 

 to Sclerotinia libertiana, which attacks the crown and then the 

 stem of the plant. The fungus winters over on dead plants, 

 which show the sclerotia in large numbers. 



Mr. C. G. Lloyd, of Cincinnati, has presented to the Garden a 

 complete set of all known species of puffballs, based on his ex- 

 tensive and long-continued studies of this group. The value of 

 this contribution can hardly be estimated. 



Botryorhiza Hippocrateae and Endophylloides portoricensis, 

 new genera and species of rusts, were described by E. W. Olive 

 and H. H. Whetzel in the January number of the American 

 Journal of Botany in an article on the Endophyllum-\\kt rusts of 

 Porto Rico. 



L. M. Massey, in the Cornell University Agricultural Experi- 

 ment Station Bulletin 380, gives the results of his rather exten- 

 sive studies of the hard-rot disease of Gladiolus caused by 

 Sepioria Gladioli Passer. The methods of treating the disease 

 are also considered. 



Phymatotrichum omnivorum is the name used by Dr. B. M. 

 Duggar for the fungus causing the cotton root rot which is 

 common in many parts of Texas. An account of this disease was 

 recently published in the Annals of the Missouri Botanical 

 Garden. 



