AUSTRALIAN FUNGI. 
401 
Genus 11. CHONDRIODERMA. Rtjki. 
Peridimn sessile or stipitate, splitting irregularly, or in a 
stellate manner ; wall of peridiutn single or double ; outer wall 
covered with shapeless granules of lime, or crustaceous by their 
accumulation, separated from the inner one (when present) by a 
considerable space filled with air; inner wall delicate, containing 
no lime, iridescent ; columella usually present; threads of capilli- 
tium thin, without lime, either sparingly bifurcating or branching, 
and anastomosing to form a more or less dense net. 
2058. Chondriodenna difforme. Pevs. Mass. Mon. 212. 
Rtf Li. Mon. 177, figs. 137, 164, 165. Sacc. Syll. 1282.= 
Physarum album. Fries. 
Sporangia sessile, roundish, deformed, outer wall crustaceous, 
chalky-white, inner either opaque or beautifully iridescent, without 
columella or capillitiura, or with a scarcely evident capillitium ; 
spores dark-violet, smooth, 10-1 2^- /x diam. 
On bark, leaves, twigs, herbaceous stems, etc. Victoria. 
Queensland. (Pig. 354.) 
Genus 12. DIDYMITJM. Sclirad. 
Wall of sporangia single or double, outer wall covered with 
crystals of lime, either scattered singly over the surface, or com- 
pacted into a crustaceous separable coating ; sporangia sessile or 
stipitate, without or with a columella, always splitting irregularly, 
now and then plasmodiocarpous : capillitium usually well deve- 
loped, threads thin, without lime, either radiating from the colu- 
mella or base of sporangium as simple or furcate threads, which 
usually combine laterally towards the apex, or combine throughout 
their length to form a dense, irregular network, with the angles 
more or less triangular or flattened ; spores lilac or violet-brown. 
Mass. Mon. 219. 
2059. Didymium farinaceum. Sclirad. Rtfki. Mon. 154. 
figs. 128, 171, 174. Mass. Mon. 219. Sacc. Syll. 1309. 
Sporangia hemispherical or a little flattened, decidedly nmbilicate 
at the base, greyish-white (in the form without lime, black and 
shining), stipitate ; stem rigid, black, shining, or exceptionally 
ferruginous-brown, usually equal in length to the sporangium, or 
longer, or shorter and disappearing, being concealed in the umbili- 
cus of the sporangium ; columella large, hemispherical, black, of 
large cells proper to itself, the numerous folds of the membrane 
imperfectly dividing the cells ; cells irregularly filled with small 
granules of lime, collected in lumps; capillitium of simple threads, 
permanent, serpentine, bright-brown ; spores dull-violet, very spi- 
mdose, 10-121 
Gn dead leaves, twigs, etc. Queensland. 
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