OF SOUTH a;:stralia. 
273 
Amis apisn]ly free, coiinivent or expanded. 
Anii.s eonnivent (usually) attached to the apex of 
a simjile cylindrical stem Lysurtts. 
Arms attached laterally to a hiori/.ontal discoid 
expansion of the apex of the cylindrical stem Aseroe. 
COLUilNATHAU. 
Receptacle without a stipitate base, of simple columnar arms organically 
united apically, but free basally. 
Gleba attached to the inner surfaces of the columns. 
Columns transversely rugose or smooth Lindrria. 
Columns with lateral w'inged expansions (JUumenavia) . 
Gleba attached to a pendent ])ulvinato structure 
attached to the ventral surface of the apex of the 
united columns (Laternea). 
CLATllRATEAE. 
Receptacle of arms auastomosed to form a globoid, hollow, sessile clathrate 
sphere, of arms clathrately arranged above but columnar below, and/or basally 
united to form a short cylindrical stem, or clathrate and suppiorted upon a 
definite stem. 
Receptacle with a definite cylindrical stem. 
Receptacle arms with iiumerous capiitate or clavate 
lobes attached e.xteriorly (Kalchhrennera) . 
Eece])tacle arras not lobed (Shnblum). 
Receptacle clathrate above, anus below columnar and 
united basallv to form a short cylindrical base . . Coins. 
Recejitacle sessile, or p)ractically so, clathrate . . . . Chithrns 
CLAUSTULACEAE. 
Recepitacle sessile; an obovate or spherical app)arently iiulehiscent hollow 
sj)here; gleba lining the inner surface. 
With the characters of the family CJaustula. 
II. HYMENOGASTRALES. 
Peridium of I-d layers, or occasionally wanting at maturity, iudehiscent, 
stipitate or sessile. Gleba composed of numerous tramal plates anastomosed to 
enclose numerous labyrinthiform or subglobose cavities, p)ersisting at maturity, 
save in a few species; capillitilim absent. Pasidia 1 to 8-spored. Spores hyaline 
or coloured, variously shaped, smooth or variously sculptured. 
HYMENOGASTRACEAE. 
Peridium sessile, indehiscent, tuberiform, often hypogaean, of 1 or 2 layers, 
attached to the substratum by numerous lateral and/or basal mycelial strands. 
RTllZOrDEAE. 
Peridium with lateral (and basal) mycelial strands. 
Spores elliptical and smooth. 
Sp>ores hyaline or tinted only Hhisopogon. 
S])ores deeply coloured Melanogaster. 
Spores globose and verrucose {SclerocHisterA 
IIYMEXOGASTREAE. 
Peridium with radicate mycelial strands. 
Spores globose. 
Gleba traversed by' an evident sini])le or dendroid 
ccdumella Hydnungmm. 
Globa without a columella OciaKumia. 
Spores elliptical. 
Gleba without a columella ITym( nogaster. 
