OF SOUTH AUSTRALIA. 
275 
LYCOPERDEAE. 
Peridium of 2 layers, dehiscing by an apical stoma, several such or by 
weathering of tlie apex. Capillitnim simple or freely branched. Basidia long- 
sterigmate, 4-sponal. Spores globose, typically echinulate, rarely smooth. 
Ccipillitium threads attached to tlie peridiuni and 
central columella, when present. 
Peridiuni dehiscing by weathering of the apex 
Peridium dehiscing by a definite apical stoma 
Capillitium threads free within the peridium. 
Threads simple or shortly branched. 
Threads short, smooth ' 
„„ short, spinose Myccnastrum. 
threads freely branched, of a central main stem, 
and short, dichotomous acuminate branches. 
Plants with a well developed rooting base 
Plants at maturity without a definite rootinpf 
base 
Calvatki. 
Lycoperdon. 
Disciseda. 
Bovistella. 
Bovista. 
MESOPllELLlEAE. 
Peiidium coinmonly of 3 layers, indehiscent. Gapillitium unbranehed. Basidia 
stcngmatc, apjiarently 2-spored. Spores globose or elliptical, usually with a 
gelatinous exospore. 
Spores globose, reticulated Abstom-a. 
Spores elliptical, smooth or irregularly roughened. 
G'leba with a central core Mesopliellia. 
Gleba without a central core Casto-reum. 
GEASTREAE. 
Peridium 4-layered, dehiscing by an apical pore, or by several such. Capillitium 
attached, unbranched. Basidia sterigmate, -1 to 8-spored. Spores globose 
typically echinulate. ’ 
Peridium dehiscing by a single apical stoma . . . . Geaster. 
Peridium dehiscing by many apical stomata .. .. {Myriosioma) . 
IV. SCLEEODERMATALES. 
Peridium epigaean, sessile or attached by a pseudo-stem, 1 to 3 layered; 
dehiscing by an apical pore or by irregular fissuring. Gleba at maturity pulveru- 
lent (or partially so), without capillitium. Basidia inflated, bearing aii irregular 
number (1 to 12) of spores, sessilely or on short sterigmata. Spores hyaline or 
coloured, globose or elliptical, smooth or variously sculj)tured. 
SCLERODEKMATACEAE. 
Peridium of 1 or 2 layers, dehiscing by irregular fissuring or by weathering 
of the apex, sessile or with a pseudo-stem. Basidia bearing from 1 to 8 spores 
sessilely or on short sterigmata. Spores globose, echinulate or reticulate. 
Gleba pulverulent at maturity Scleroderma. 
Gleba compacted through gelatinizatiou of tramal 
plates, forming a cellular tissue containing cavities 
filled with the pulverulent spore masses Fisolithus. 
CALOSTOMATACEAE. 
Peridium of 3 layers, dehiscing by an apical stoma, carried upon a prominent 
pseudo-stem. Gleba borne within a spore sac pendent from the apex of the 
iimer surface of the endoperidium. Basidia beaning sessilely a variable number 
(5 to 12) of spores which are attached irregularly. Spores globose or elliutical 
variously sculptured. ” " ’ 
With the characters of the family Calosioma. 
