12 



PROCEEDINGS OF THE ACADEMY OF 



the fruiting receptacles, in which respect it more nearly resembles 

 the Aspergillus dubius, growing on rabbit's dung. The Asper- 

 gillus of the Flamingo, I suspect to be the same as one described 

 by M. Robin, under the name of Aspergillus nigrescens, discovered 

 by him in the lungs of a pheasant {Phasianus colchicus) affected 

 with phthisis. 



In the Flamingo mould, the mycelium consisted of a dense flock 

 of delicate ramifying filaments pervading the indurated pulmonary 

 tissue, which consisted largely of nucleated cell elements and 

 granules. The threads of the mycelium were branching:, and occu- 

 pied on the interior with clear globules appearing like rows of 

 beads. The threads measured usually the 3^3 th of a millimetre or 

 less in diameter. 



The fruiting stems (see accompanying figure) were straight, 

 from one-fourth to two-fifths of a millimetre long, not articulated, 

 usually simple, and rarely divided approximating a 

 right angle, near the head. They were about the 

 ^igth mm. wide at the mycelial origin and double 

 the width approaching the head. The head continuous 

 with the stem was pyriform ; or the stem expanded 

 into a globular receptacle, which was closel} r crowded 

 with linear processes, or sporophores, supporting the 

 spherical, translucent colored spores. The latter pro- 

 fusely invested the heads, but were too ripe and 

 readily detached to determine their exact arrangement 

 in relation with the sporophores. These, on the con- 

 trary, remained firmly attached to the receptacle. 



- 



336 diam. 



The receptacles measured from the g^th mm. to the 



eVth 



mm. The stratum of sporophores was from 

 T ^th mm. to the T * 5 th mm. thick. The spores were 

 the 



35 ? d mm. in diameter. 

 By transmitted light, the spores appeared so faintly 

 colored that the tint was undetermined; by reflected 

 light, in mass they appeared of a greenish hue. The 

 receptacles including the sporophores appeared fus- 

 cous by transmitted light, but white by reflected light. 

 In M. Robins' plate of A. nigrescens he represents 

 most of the fruiting stems as articulated, but in our plant none 

 of this character were detected. 



January 26. 



The President, Dr. Ruschenberger, in the chair. 



Twenty-one members present. 



The resignation of Lloyd P. Smith as a member of the Academ}', 

 was read and accepted. 



The following were elected members: 



