346 SUMMAEY OF CURRENT RESEARCHES RELATING TO 



After H series of experiments, Fr. Bubak * has proved that ^cidium 

 Plantaginis belongs to the Ufe-cycle of Pucciiiia CynodonUs, that P. 

 SesUrm does not form JEcidia on Rhanmus saxatilis, R. cathartka, or 

 R. Frangula, and that P. Anthoxanthi is not connected with the 

 JEcidmni on Ranunculus bulbosus. Bubak has also been able to 

 confirm Fischer's statement that P. WiUetnetece belongs to the Auteu- 

 puccini^e ; he grew all three spore-forms on the same plant. 



Ernst Jacky f records observations and experiments in connection 

 with ten different species of Puccinia. He gives also notes as to the 

 wintering of uredospores. He has proved in several cases additional 

 to those already known, that these spores do last through the winter 

 and reinfect the host-plants in spring. He has overthrown the idea 

 that the teleutospores of Phragmidiuni suhcorticium do not germinate, 

 as he obtained an abundant growth of promycelium and basidiospores. 

 He has made other experiments with Phragmidium spores, and has 

 established the connection of Uredo 3Iulleri and Pragmidiimi albidum, 

 and has proved that this fungus will not grow on Ruhus Idceus. 



Polyporus fulvus.| — Josef Schorstein has found this fungus growing 

 as a saprophyte on dead willow-trees ; the mycelium penetrates to the 

 pith, which it hollows out. The author has made drawings of the hyphs, 

 and recommends that the hyphae of such wood-infesting fungi should 

 always be illustrated, as they are often very characteristic. 



Observations on Pileate Pungi.§ — J. E. Lange has studied the 

 geographical distribution of the larger fleshy fungi. He divides them 

 into two series. (1) Wood flora, including forms that grow on wood 

 itself, and forms that grow among the trees. (2) The flora of the open 

 country — on field, moor and heath, etc. He also gives notes on the 

 time and duration of growth. He finds that such a study is difficult 

 because fungi do not spring up every year in the same locality. He 

 considers that the spores are of minor importance in the distribution of 

 the species, and that the mycelium lives over the year and gives rise to 

 the new crop of plants. 



Fungi New to Yorkshire. || — C. Crossland publishes a considerable 

 list of fungi which have been added to the county flora since the York- 

 shire Fungus Flora was published. Two of them are new to science, 

 Clavaria gigaspora and Verticidadium Cheesmanii. Seven are new to 

 Britain and the others new to Yorkshire. A coloured plate is given of 

 the new Verticidadium, a distinct and well marked form that grows on 

 decorticated wood. 



' Fungi from St. Louis. If — N. M. Glatfeltes publishes a preliminary 



• list numbering about 500, mostly of the larger fungi, collected in the 



neighbourhood of St. Louis from 1898 to 1905. He mentions several 



curious facts in connection with the growth of these plants. Some are 



* Centralbl. Bakt., xviii. (1907) pp. 7i-8. + Tom. cit., pp. 74-93. 



X Zeitschr. Land. Yersuch. Oesterr. (1906) 3 pp. (1 fig.). See also Hedwigia, 

 xlvi. (1907) Beibl., p. 60. 



§ Bot. Tisskr., sxvii. (1906) heft 2, pp. 57-44. See also Bot. Centralbl., civ. 

 (1907) pp. 370-1. ii Naturalist, 1907, pp. 97-105. 



t Trans. Acad. Sci. St. Louis, 1906, pp. 33-94. 



