122 Fungi, Myxomj^ceten , Pathologie. — Bacteriologie. 



Murrill, W. A., A new chestnut disease. (Torreya VI. 

 p. 186-189. 1906). 



This is a description of the fungus Diaporthe parasitica sp. nov. 

 which causes a very serious disease of the branches of living trees 

 of Castatiea deutata in the vicinity of New York city and extending 

 into New Jersey, Mar3^1and, the District of Columbia and 

 Virginia. An account of the disease is given. The fungus enters 

 through wounds and attempts to inoculate twigs without wounds have 

 been whoUy unsuccessful. The fungus attacks all parts of the tree 

 alike without regard to the size, and soon extends its field until the 

 branch or stem is girdled and killed. The fungus works beneath the 

 bark so the only method of treatment seems to be that of pruning 

 out the diseased parts. Perley Spaulding. 



Murrill, W. A., The pileate Polyporaceae of central Maine. 

 (Torreya VI. p. 34-37. Feb. 1906). 



This is a list of fungi collected in Maine during August and 

 September, 1905. A Single new species, Po/j-porz^s/ß^zco/« is described 

 growing upon a decorticated beech log. Perley Spaulding. 



Smith, Ralph E. and Elizabeth H. Smith, A new fungus of 

 economic importance. (Bot. Gazette XLII. p. 215— 221. Sept. 1906). 



A peculiar rot of lemons in California has recently received 

 attention by the Agricultural Experiment Station. The new rot differs 

 from the ordinary blue mould rot which is so well known. The new 

 rot spreads by contact and soon infests the whole box of fruit if left 

 undisturbed. The rotted lemons have a peculiar rancid smell which 

 is characteristic of the disease. Affected lemons may be found even 

 upon the trees in the orchard during very wet weather. The fungus 

 has been carefuU}' studied in cultures. It does well only on liquid 

 media. The fungus is found to represent a new genus and has been 

 named Pythiacystis. It is intermediate between Saprolegnia and 

 Peronospora. The new species Pythiacystis citrophora has been made 

 and described, this being the fungus causing the disease of lemons. 



Perley Spaulding. 



Wilson, G. W., Mycological notes from Indiana. (Torreya 

 VI. p. 191-192. 1906). 



Brief notes on Peronospora Floerkeae , Hyärogera Kleiuii, and 

 Staminaria americana. Perley Spauldmg. 



Campbell, D. H., Multiple Chromophores in Anthoceros 

 (Annais of Botany, Vol. XX, 59, 1906. p. 321). 



An Anthoceros discovered in Tjiapus Gorge, Buitenzorg, 

 was found to contain multiple chromophores in all its cells; these 

 were not infrequently as many as eight in number in each cell. The 

 pyrenoid was absent. This species belongs to the section of the 

 genus with spiral elaters and with no stomata in the sporophyte. 



M. Wilson (Glasgow). 



