Palaeontologie. — Fungi, Myxomyceten , Pathologie. 445 



pteris de courtes inflorescences, qu'il presume avoir forme de grands 

 epis composes, charges de graines distiques. L'un d'entre elles, qu'il 

 rapporte au Nevropteris cordata, lui a offert des involucres globu- 

 laires fibreux, avec des graines ä testa epais s'ouvrant en trois valves. 

 Les Callipteridiuni se montrent associes ä des graines rondes, 

 ä testa minces assimilables aux Stephanospermum. En fait d'inflores- 

 cences males, l'auteur a pu observer Celles du Pecopteris Pluckeneti, 

 occupant l'extremite de frondes differentes de Celles qui portaient 

 les graines, et montrant, ä la place des receptacles, des groupes 

 etoiles d'antheres tres charbonneuses R. Zeiller. 



Cooke, M. C, Fungoid Pests of Cultivated Plants. (Roj^al 

 Hort. Soc. London. 278 pp. 24 coloured Plates. 10/6 net. 1906.) 



Consists of a series of articles previously published in the Journ. 

 Roy. Hort. Soc. now collected in the form of a volume. For the 

 benelit of cultivators the fungi are grouped together according to 

 the nature of their hosts rather than by following a scientific 

 Classification. A. D. Cotton (Kew.) 



Johnson, J., The Corn Smuts {Ustilagineae) and their Propa- 

 gati on. (Science Progress N*^. 1. p. 137 — 149. 1906.) 



A resume of our knowledge of the life history of the corn 

 smuts. Special attention is given to Brefelds recent important 

 discoveries. See Centralblatt Vol. 101. 1906. p. 212. 



A. D. Cotton (Kew.) 



Lloyd, C. G., A Novelty from Minnesota. (Mycological Notes 

 XXII. p. 270. pl. 90. fig. 1-5. July 1906.) 



A new genus of Gasterojnycetes is described from t^^pe specimens 

 received from Dr. Mary S. Whetsone of Minneapolis, Minne- 

 sota, and named Whetsonia; characters, peridermium stalked, 

 distinct from the stalk by a definite membrane. Gleba consisting of 

 spores contained in persistent cells. Capillitium none. The genus is 

 a monot^'pic one represented bj" the new species Whetsonia strobili- 

 formis. It is most closely allied to the genus Phellorina. 



Hedgcock. 



Morgan, A. P., North American species of Lepiota. (Journ. 

 Mycol. XII. p. 154—159, 195—203, 242-248. July, Sept. and Nov. 1906.) 



Peck's monograph of the genus Lepiota in 1882 gave but 18 

 species while there have been nearly 80 enumerated. The present 

 paper proposes to bring together these scattered descriptions and 

 bring them into some kind of order with suitable keys for distinguishing 

 them from one another. The following species are given: Lepiota 

 tnesomorpha Bull., L. mfipes Morgan sp. nov. on ground in woods, 

 Preston, Ohio, L. cristatella Peck, L. cheimonoceps B. and C, 

 L. noscitata Britz., L. seniinuda Lasch, L. parvannlata Lasch, L. 

 cyanosonata Longyear, L. piirpiireocoiiia Atkinson, L. ecitodora 



