GASTEROMYCETES 



503 



plates lies the torn portion of the intermediate Zw. gefl. pi. whose proximal 

 end extends into the receptacle branches Up. In cross section, these 

 form the outline of an acute sector with the base outward and the sides 

 closely connected with the gleba Gl. The apex continues through the 

 plate TVi to the columella. In contrast to Clathrus cancellatus, the central 

 branches do not anastomose with one another but, like those of C. 

 columnatus, rise from the base to the top of the fructification like the ribs 

 of a dome. 



In the unfolding of the fructification, the plates of the intermediate 

 tissue, the branches of the columella, the tramal plates Tr\ and the tissue 

 R gelify; the peridium and the volva gel burst, and the receptacle rises out 





Fig. 322. — Blumenavia rhacodes. 1. Mature fructification. 2. Section of receptacle 

 branch of immature fructification. 3. Section of immature egg. 

 natural size; after Moller, 1895, and E. Fischer, 1900.) 



(1 X 



2 X 8; 3, 



of it with a rapidity of up to 1 mm. per minute. As the eight columnar 

 gleba portions are only connected with the receptacle columns, they are 

 shifted outward through the papery aliform layer Ps, and exposed to the 

 air from the interior of the lantern. The layer Ps, however, is not able 

 to follow the stretching of the receptacle branches; it tears to pieces and 

 remains hanging from the margins of the orange-yellow receptacle 

 branches as bizarre rags, carrying on their exterior the dirty green gleba 

 which soon drops away. 



In the Brazilian Clathrella chrysomycelina, during the earlier stages, 

 a rind layer Rd is differentiated about the columella (Fig. 323, 1; Moller, 

 1895; E. Fischer, 1900, 1910). This follows the branches of the columella 

 (which, here in contrast to Clathrus and like Hysterangium, are plates and 

 not columns) and surrounds it even when these ends have spread to the 



