First, It has the same color, shape, size, scales, texture and spores as 

 Lentinus tigrinus. 



Second, Plants imperfectly metamorphosed as shown in our figure are 

 not rare. 



Third, A number of plants are known to assume abnormal forms thus. 

 Myriadoporus is acknowledged to be a form of various polyporoids, Ptycho- 

 gaster a conidial form of others, and in the Gastromycetes I claim that 

 Catastoma juglandaeforme is probably only a curious anomaly of Catastoma 

 castanea. 



fig. 223 

 A section of Lentodium squamulosum enlarged x6 . 



Professor Morgan always maintained that no known abnormality 

 has normal spores, that Myriadoporus is sterile, Ptychogaster is 

 conidial, while Lentodium has normal basidial spores. It is also a 

 curious fact that in Europe where Lentinus tigrinus is common in 

 certain localities, Lentodium squamulosum is unknown and in our 

 country Lentodium is not infrequent and Lentinus tigrinus is rare. 

 Similar abnormalities of agarics are frequently caused by parasitic 

 fungi as the common Hypomyces Lactifluorum but there is no 

 evidence of any parasitic species in connection with Lentodium. 

 Patouillard has suggested " des parasites animaux " but that also is 

 only a supposition without any proof. We present (fig. 223) an 

 enlargement of a section of the interior of Lentodium squamulosum. 

 It will be seen that the gills anastomose and form an irregular, porous 

 mass. The spores are in the greatest abundance and are elliptical, 

 3x5 mic. hyaline, smooth. Whether Lentodium squamulosum is 

 autonomous or not, the name is very convenient to designate this form. 



SPECIMENS IN OUR COI^ECTION. 



Ohio, Professor A. P. Morgan (type) : Illinois, J. Schneck : Mississippi, Dr. 

 N. S. Davis: Dist. Columbia, H. E. Warner: Kentucky, C. G. Lloyd: Iowa, James 

 F. Clarke : New Jersey, E. B. Sterling (3 collections) : Pennsylvania, Mrs. 

 Hannah Streeter: Michigan, O. E. Fischer: Minnesota, Mrs E. F. Elliott, Dr. M. 

 S. Whetstone : Vermont, C. G. Lloyd. 



