Elliott: Characters of Southern Tuckahoe 225 



was markedly less dense in structure, indicating a probable ex- 

 haustion of much of the stored food material. An attempt was 

 made to culture the fungus from the interior of the mass by re- 

 moving portions of the tissues aseptically and planting them on 

 cornmeal agar. Plantings from the center of the mass failed to 

 germinate, but a rapidly growing mycelium developed from sec- 

 tions cut from near the cortex. Cultures of this mycelium were 

 transferred to flasks of cornmeal agar, where they quickly cov- 

 ered the surface of the agar with a dark-brown, thick, sterile, felty 

 growth. It made no further development. 



The exudation of milky juice from the broken rhizomorph sug- 

 gested the presence of lactiferous ducts and glands in the sclero- 

 tium, and sections were accordingly cut from various parts of the 

 structure, embedded in paraffin, sectioned, and stained for more 

 detailed microscopic study of its morphology. In addition to the 



Fig. 2. Camera lucida drawing of a glandular body in Pachyma cocos show- 

 ing entering ducts. This was one of the more regular forms. 



variously shaped fungous elements which have been reported by 

 Prillieux, Fischer, Bommer, and others, structures were found 

 which would seem to be lactiferous ducts and glands. These were 

 near the cortex in all cases observed. The ducts were thin-walled ; 

 large (iO/x) in comparison to the hyphal threads (2-4 /*) and 

 usually ended in structures which were interpreted as glands (Fig. 

 2). With Flemming's triple stain, the fungus took a uniform 

 light-blue stain throughout. However, scattered along the inside 

 of the supposedly lactal glands and ducts were granules and drop- 

 lets which took the safranin stain quite consistently. These drop- 



