8 



BOTAXICAL GAZETTE 



[JULY 



peridioles. Figs. 15 and 18 show a basidiocarp where this gelat- 

 inization has only taken place around the lower peridioles, while 



figs. 17 and 21 show a slightly older stage. 

 The tissue remaining between these gelatiniz- 

 ing regions and the denser filaments of the 

 wall of the peridiole becomes the thin, color- 

 less, outer wall of the peridiole. The filaments 

 in this region gelatinize somewhat, but other- 

 wise undergo little change. As the peridioles 

 enlarge, this outer wall becomes stretched 



out (fi 



5* 



23) and remains as a colorless, deli- 





€& 



s 



Fig. 2 . — Somewhat 

 diagrammatic drawing 



cate, easily removable coating over the surface 

 of the mature peridiole. Text fig. 2a shows 

 the structure of this layer. 



The cells making up the extreme outer 

 portion of the inner wall of the peridiole 

 become much thickened, pseudoparenchy- 

 matic, and brown (fig. 23, text fig. 2b) , and, 

 showing through the outer hyaline wall, 

 give the characteristic color to the mature 

 peridiole. Within this layer of dark cells 

 is a layer of compactly interwoven fila- 

 ments whose walls are somewhat gelati- 

 nized. This gradually becomes looser as 

 the hymenium is approached (fig. 27, text 

 fig. 2c). 



In some pure cultures basidiocarps arose 



of wall of mature pe- between the culture medium and the glass 

 ridiole through thinner (fig. 4). In such fruit bodies no peridium 

 region near side : a, outer developed on the side next to the glass, and 



chymatic po^t iTnTf the whole development of the interior could 



be followed with a hand lens in an individual 

 basidiocarp. Fig. 6 is an enlargement of the 



inner wall 

 interwoven 



c, loosely 

 portion of 



inner wall; d 7 hymenium. 



fruit body shown in fig. 4. 



Development of funiculus. — The funiculus has its origin 

 in the somewhat parallel filaments extending from the innermost 

 surface of the peridium to the primordium of the peridiole. This 





