MICHIGAN ACADEMY OF SCIENCE. . 63 



Hyphomycetes — Continued: 



Ramularia taraxaci Karst. On Taraxacum officinale, Ann Arbor, M. A. C, May, 



September, Merrow, Beal. 

 Ramularia Tulasnei Sacc. On Fragaria, i\Iay to August, Merrow, Spalding. Smith. 

 Ramularia urticae Schw. On Urti'ca gracilis, Ann Arbor, Battle Creek, July, . ep- 



tember, Merrow, Spalding. 

 Ramularia variabilis Fckl. On Verbascum thapsus, Ann Arbor, Battle Creek, June, 



July, Merrow, Johnson, Spalding. 

 Rhinotrichum Curtisii Berk. Rotten wood, June, September, Langdon, Johnson, 



iide Ellis. 

 Scolecotrichum graminis Fck. On Glyceria fluitans and Phleum pratensis. Battle 



Creek, Ami Arbor, July, Spalding, Pieters. 

 Septonema spilomeum Berk. Common on fence rails, April 28, 1893, Johnson. 

 Sporodesmium vesiculosum E. & E. n. sp. On rotten wood, September 20, 1894, 



Johnson. Type from same log. 

 Streptothrix atra B. & C. On Juniperus Virginiana, common. Juglans cinerea {fide 



Ellis) and Hamamelis, April, 1893, Johnson. 

 Strumella coryneoides Sacc. & Wint. On dead bark of Quercus, March 2, 1895, 



Shaffner and Pieters. 

 Stysanus stemonites (Pers) Corda. On dung of muskrat and dove, Johnson; also on 



slice of potato that had brown vascular bundles, in culture dish in laboratory, 1903, 



Pollock. 

 Trichoderma lignorum (Tode) Fr. On Quercus, April 15, 1893, Johnson, fide Ellis. 

 Trichosporium sphaericuni Sacc. On Zea mays, November 25, 1894, Johnson. 

 Trimmatostroma Americana Thum. On dead limbs of Salix, very common, March 11, 



1893, Johnson. 

 Tubercularia celastri Sz. On Celastrus scandens, March 24, 1893, Johnson. 

 Tubercularia vulgaris Tode. (Condial form of Nectria cinnabarina). On Gleditschia 



triacanthos, April 8, 1892, Johnson. On dead hickory twigs, November, 1904, C. 



A. Davis, fide Pollock. 

 Zygodesmus bicolor E. & E. On rotten wood, October 23, 1893, Johnson, fide Ellis. 

 Zygodesmus olivacea-cinereus E. & E. n. sp. On rotten wood, September 15, 1894, 



Johnson. Type from same material. 

 Zygodesmus pruinosus E. & E. n. sp. On wood, September 20, 1894, Johnson. Type 



from same log. 



HYMENOMYCETINEAE. 



Hydnaceae. 



Hydnum sulphureum Schw. On Ulmus Americana, September, Johnson. 



Irpex mollis B. & C. On logs, in May, Pieters. 



Irpex sinuosus Fr. On rotten wood. May be collected all through the year, Pollock. 



POLYPORACEAE. 



Fomes (Ganoderma) sessile Murrill. On living maple trunk and on the ground, Ann 

 Arbor, July, August and October, Pollock. 



Merulius incarnatus Sz. On rotten logs. May, 1895, fide Ellis. 



Merulius pulverulentus Fr. On Larix Americana, Ann Arbor, May, fide Ellis. 



Polyporus fumosus Pers. On rotten logs and stumps, collected in autumn by numer- 

 ous collectors, rather common. 



Polyporus picipes Fr. On logs. May, Pieters, Johnson, Pollock. 



Poria floccosa Fr. On logs, Ann Arbor, September, Johnson, fide Peck. 



Poria inermis E. & E. On decaying logs, on Quercus and on Salix, Johnson, fide Ellis. 

 Also found on Crataegus by Kauffman and on wild plum by Wood. It is distinctly 

 stratose in old specimens, and in this resembles a resupinate form of Fomes. This 

 stratose form may become several millimeters thick, and the writer has seen several 

 specimens a centimeter or more thick. 



Poria moUusca Fr. On old stumps, May, Johnson, fide Ellis. 



Poria semitincta Pk. On dead half buried sticks, April, Johnson, fide Peck. 



Poria sinuosa Fr. On dead logs, September, Johnson, fide Ellis. 



Trametes rigida Berk. & Mont. On dead limbs in woods, April, ShafTner. 



