Rhizostilbella rubra , a by-fruit form of Ascobolus parasiticus &c. 
237 
yellow knobs, which at once betrayed themselves as representatives of the 
“S^76Ä-type”. It was evident that we had here to do with the complete 
fruitforming and its by-fruitforming of one of that always interesting group 
of „ C o n i d i e n - P i 1 z e “. 
We will commence our description with this Conidium-form. The 
first, and most prominent habitus is presented in fig. 1. Here we see 
on a piece of soil the fiery-red rhizom orphie system spreading out in 
strong branchings, originally without the coremies (the left side of this 
figure) — later on provided with a more or less number of these coremies, 
on the top of which are little yellow, slimy knobs which, on microscopical 
examination are shown to be vastly multifold aggregations of thin Conidio- 
pliores each of which with a very small conidium. The rhizomorphes 
average from 1 1 j 2 to 2 mm breadth. They are markedly flattened and 
they narrow down towards the extremities. 
Another illustration of habitus is represented in fig. 2 and fig. 3. 
Fig. 2 is in fact a Voandzeia fruit thoroughly rotten, though remai¬ 
ning intact in form. We, in this figure now look at the fruit-wall and 
observe the great number of Coremies, which have penetrated the fruit- 
wall. Then let us now very carefully remove the fruit-wall then the 
illustration in fig. 3 presents itself before us, now looking at the seed- 
skin. We meet there with the above mentioned rhizomorphes and 
now it is evident that these rhizomorphes are present only between 
the seed-skin and the fruit-wall. This was the case with all 
the fruits. 
A cream-coloured pulp, which was previously the cotyles, is found 
within this seed-skin. The rhizomorphes in the first instance originate 
from this pulp. This point however will be more fully considered in the 
second paragraph. For the sake of completeness I give fig. 4, where a 
rhizomorph swings spirally around a branch. 
It is by this typical rhizom orphie character, manifesting itself 
everywhere through the flat bands which continually are pressed 
closely against the substratum that I have given to this fruit-form 
the specific name of Rhizostilbella and more fully Rhizostilbella rubra , 
owing to its deep red colour. 
Fig. 5 gives the longitudinal section of such a rhizomorph. In the 
central part there runs a skein of normal mycelium threads (just such as 
those which develop in the cotyles-pulp); these threads run loosely from 
each other, and run parallely. This colourless mycelium-line is now 
indeed surrounded by a red-coloured skin of somewhat complicated for¬ 
mation. In the first place it appears that, where the central-mycelium 
runs lengthwise, the skin mycelium, on the other hand, runs crosswise, so 
that we perceive in our section a pseudo-parenchyma occuring. Now it 
is remarkable that this skin consists of four sharply defined layers. 
Proceeding from the periphery to the centrum we first come across a very 
thin layer of flat “pseudoparenchyma cells” as if we had to do with a “peri¬ 
derm”. Following on, there comes as a second layer a “pseudoparen- 
chyma”, the “cells” of which are-wider and isodiametric: these “cells’’ are 
somewhat wider than the width of the normal mycelium thread of the 
pulp. As a third layer there now occurs a row of enormously wide 
“pseudoparenchyma cells”, while the fourth layer again corresponds to the 
