14 BOTAXICAL GAZETTE [july 



wall extend practically across the top of the basidiocarp, quite in 

 contrast with the condition in C. fascicular is. In this upper 

 portion the peridium becomes folded, as seen in a somewhat 

 tangential longitudinal section (fig. 42). At this time the peridioles 

 reach practically to the top of the fruit body, as in younger stages 

 (fig. 40). At the time of expansion this folded upper portion 

 expands, forming the striate projection above the peridioles, which 

 sink to the base of the fruit body as the gelatinized parts dry out. 





Crucibulum vulgare Tul. 



As Crucibulum vulgare is widely distributed and has been more 

 extensively studied than other species of the Nidulariaceae, the 

 writer was especially interested in obtaining it. The material 

 used for most of my studies was discovered by Miss Gertrude E. 

 Douglas on an old gunny sack in the woods on the north shore of 

 Beebe Lake on the Cornell University campus while we were col- 

 lecting together in July, 19 16. The old gunny sack was almost 

 covered with fruit bodies in all stages of development. Knowing 

 that I was especially interested in the group, she kindly turned the 

 collection over to me for fixation and study. Material from this 

 was fixed in Benda's solution, dehydrated, cleared in cedar oil, and 

 imbedded in paraffin. Later more material was collected from an 

 old board fence, also on the Cornell campus, and fixed in chrom- 

 acetic solution. The fixation with this solution was not satis- 

 factory, and little use was made of this collection except for purposes 

 of comparison. 



Artificial cultures were made of this fungus also, using the same 

 methods as employed for Cyathus fascicularis and C. striatus. It 

 made a vigorous growth upon all culture media tried. The 

 mycelium was at first white, but soon became a dirty yellow and 

 in parts quite brownish. Flask cultures, such as proved successful 

 for C. fascicularis, were tried, but no mature fruit bodies were 

 obtained. The mycelium showed much the same characteristics 

 as that of C. fascicularis. Numerous knots appeared on the mycelial 

 strands and on dense mats of mycelium from time to time, but 

 never matured. Molliard (7), however, obtained mature basidio- 

 carps of Crucibulum vulgare in similar pure cultures after two and 





