Letter No. 20. 



List of specimens received at Cincinnati from American correspondents, from 

 January 1, 1908, to the date of my departure for Europe, the latter part of June, 1908. 



The names are according to the usual nomenclature of the specimens in 

 American mycology, but, as often emphasized in previous letters, I claim no critical 

 knowledge of the subject except as to the Gastromycetes. 



Professor G. F. Atkinson, New York: Protocoronospora nigricans (co-type). 

 E. Bartholomew, Illinois: Fomes reniformis. 



E. Bartholomew, Kansas: Polyporus alboluteus (beautiful specimens collected 

 by E. Bethel, Colorado) Pleurotus nidulans Lycoperdon pulcherrimum. A mam- 

 moth form, three inches broad, and turbinate shape. Had it been sent separately 

 I should have thought it something new, but small specimens of the same collection 

 can not be told from the usual form in our Eastern States. 



E. Bethel, Colorado: Dictyocephalus curvatus (although not a perfect speci- 

 men we are glad to get it for our museum, as it is a part of the only good collection 

 known. Mr. Bethel is the only one who has ever collected this plant, and he has 

 found it in good condition but once, cfr. Myc. Notes, pp. 136 and 411) Polysaccum 

 crassipes Phallus imperialis. 



M. Bubna, Ohio: Fomes leucophaeus Polyporus arcularius (small specimens) 

 Polystictus cinnabarinus Polystictus pergamenus Polystictus hirsutus (old) 

 Polyporus elegans Merulius tremellosus Polystictus hirsutus Polystictus con- 

 chifer Polystictus pergamenus Polyporus (sp.) Polyporus Spraguei Polyporus 

 adustus Merulius incarnatus Polystictus versicolor Daedalea confragosa 

 Clavaria pistillaris, the form called (incorrectly) Craterellus clavatus by one 

 American author Lenzites saepiaria Polystictus versicolor Fomes fomentarius 

 Hypoxylon (sp.) Polyporus gilvus (unusually yellow form) Stereum fasciatum 

 Polyporus adustus Daedalea confragosa Polyporus gilvus Polystictus 

 pubescens (as known in American mycology, but I think?) Polyporus sessile 

 Polyporus distortus Polystictus hirsutus Lenzites betulina Polyporus benzoi- 

 anus Polyporus lucidus Lenzites corrugata Daedalea confragosa Lenzites 

 saepiaria Xylaria polymorpha Polyporus (sp.). 



Dr. J. F. Brenckle, North Dakota: Secotium acuminatum Geaster floriformis, 

 some with indefinite and some with definite mouths. Thus our distinction between 

 Geaster floriformis and Geaster mammosus fades away Geaster asper Catastoma 

 nigrescens, an undescribed species which I have had previously from Professor 

 Shear and Ernest Knaebel, both collections from Colorado Bovista plumbea, large, 

 robust form Cyathus Schweinitzii, growing on soil Bovista (cfr. dealbata). The 

 color is very dark, the size smaller, and it has no adnate cortex which we associate 

 with dealbata. It is very close, however. 



Dr. J. F. Brenckle, Wisconsin: Panus stipticus Fomes leucophaeus Daedalea 

 unicolor, the thick form called Daedalea cinerea Polyporus resinosus Hydnum 

 ochraceum Polystictus versicolor Fomes Ohiensis Polystictus biformis Poly- 

 stictus pubescens. 



