564 SUMMARY OF CUERENT RE8EAE0HES RELATING TO 



several species of ErysipTie, and Podosphsera Kunzei. Dr. P. Sorauer 

 finds the white tufts on the upper side of the leaf to consist of the 

 conidial form of a fungus closely allied to SphserotJieca Gastagnei, and 

 which he describes as f. Mali of that species. The peritheces were not 

 found on the leaves themselves, but on the leaf-stalks or young branches. 



Uredineae of Pinus Strobus.* — Herr H. Klebahn finds very great 

 injury inflicted on plantations of the Weymouth pine by two parasitic 

 fungi belonging to the TJredinese, Peridermium Strohi and P. Pini 

 corticola. Experiments were made to determine the teleuto- and uredo- 

 spore forms that are genetically connected with the secidio-form which 

 attacks the pines, especially those found on various species of Bibes ; 

 and the author claims to have established the connection between 

 Peridermium Strohi on Pinus Strobus, Lambertiana, and monticola, and 

 Cronartium ribicola on Bibes aureum,, nigrum, rubrum, and sanguineum. 

 ^cidiospores of P. Strobi sown on leaves of Cynanchum Vincetoxicum 

 produced no result. The " spermogones " of P. Strobi are also described ; 

 the author is unable to assign any sexual function to the " spermatia." 

 He was not able definitely to determine the genetic connection between 

 Peridermium Pini corticola and Cronartium asclepiadeum^ though he con- 

 siders it probable. 



Coleopuecinia.f — M. N. Patouillard describes a new genus which 

 comes between Gymnosporangium and TJropyxis, from Yunnan, the 

 teleutospores of which germinate on Amelanchier. This parasite has 

 spores of the same form as those of a Puccinia ; they are composed of 

 two superposed cells, the lower being supported by a colourless stipe of 

 the same length as the cell. Each of these spores is inclosed in a 

 cylindrical sheath which is closed both above and below, and is colour- 

 less and gelatinous. The author concludes by giving a diagnosis of this 

 new genus, to which he has given the name Goleopuccinia, on account of 

 the sheath, and to denote its affinity to Puccinia. 



Tulasnella, Prototremella, and Pachysterigma4 — M. J. Costantin 

 states that Tulasne many years ago described a fungus having the 

 external characters of Gorticium incarnatum, but differing in the 

 basids bearing swollen sterigmata. Not attributing very much import- 

 ance to this, he made a variety pinicola. In 1888 the preceding was 

 described as a genus by three separate authors ; these three genera are 

 Tulasnella Schroet., Prototremella Pat., and Pachysterigma Bref., Istv., 

 and Olsen. Tulasnella being the oldest name, ought to be preserved. 

 It represents somewhat of a transition between the Hypochnaceas and 

 Dacryomycetes, approaching the former in the disjointed hymenium and 

 aspect of Gorticium, and the latter in the swollen sterigmata. 



Phosphorescence of Agaricus olearius.§ — According to Sig. U. 

 Martelli, the phosphorescence of this fungus is not increased by a rise in 

 temperature, nor by immersion in oxygen ; in carbonic acid it gradually 

 dies away, and disappears entirely at a temperature of 90° C. Every 

 separate particle of the lamellas is endowed with luminous properties ; 

 for, if any point of a lamella is touched, all the other lamellse at once 

 become luminous on both sides. The author considers that the phos- 



* Ber. Deutsch. Bot. Gesell., vi. (1888) Gen.-Vers.-Heft, pp. xlv.-lv. 



t Eev. Mycol., xi. (1889) pp. 3.5-6. 



j Journ. de Bot. (Morot), iii. (1889) pp. 59-60. 



§ Eev. Mycol., xi. (1889) pp. 97-9. Cf. this Journal, ante, p. 426. 



