

16 BOTAMCAL GAZETTE [july 



the basidiocarps of Crucibulum, also finds that the gelatinization 

 begins at the base and takes place upward in the same manner. 



This zone of gelatinization soon becomes a well marked one 

 (fig. 55), extending from the upper peripheral part of the fruit 

 body downward, thus outlining the tissue to the interior, the 

 primordium of the gleba, which has undergone no further dif- 

 ferentiation. As the filaments to the outside of the glebal region 

 become more and more gelatinized, they elongate and extend in a 

 downward and outward direction to the outside of the deeply 

 stained filaments bordering the glebal primordium (fig. 55). A 

 pronounced lateral expansion of the basidiocarp results. Fig. 66, 

 a higher magnification of the upper left hand portion of fig. 55, 

 shows the "structure of the glebal primordium and the tissues border- 

 ing it. This is the condition of the fruit body just before peridiole 

 formation. 



Fig. 56 shows a fruit body slightly older than the one shown 

 * n fig- 55? with the peridioles just beginning to appear. As in 



* 



C.fascicularis and C. striatus, the first trace of peridiole formation 

 is found in the appearance of regions near the outer part of the 

 glebal region, where the filaments point radially toward a common 

 center. Fig. 67 shows a higher magnification of the peridiole 

 primordium seen at the base of the fruit body in fig. 56. These 

 inward pointing filaments soon become surrounded by a layer of 

 densely interwoven filaments, and this layer by a region with 

 many intermycelial spaces, which is only slightly interrupted on 

 the side toward the peridium by filaments which lie more parallel 

 to each other and extend downward (fig. 67) to a deeper staining 

 region just outside the zone with intermycelial spaces. This is 

 the primordium of the funiculus. 



The further development of the peridiole takes place much as 

 in C. fascicularis , and even in its final differentiation shows only 

 variations in minor details (figs. 56-59, 61-62, 70). The perid- 

 ioles here, contrary to the observations of Sachs, seem to appear 

 in all parts of the gleba almost simultaneously, as in C. striatus, 

 and seem to develop almost uniformly in all parts of the fruit 

 body. The only variation was that the lowest peridiole is quite 

 uniformly smaller and sometimes not so well developed. Fig. 64 



