OF SOUTH AUSTRALIA. 
2S9 
Rpicall 3 ’ A'itli the poridiuni. Glol)a of Humorous plates anastomosed to form 
cellular or lab,yrinthiform cavities, appealing lamellar in a few species; attached 
above to the stem, but free below; eystidia jircseiit or absent. Spores sub- 
globose, elliptical, obovate or spindle-shaped, hyaline or coloured, echiiiulate 
or smooth. Solitarj- or in small groups on decaj-ing humus or netting wood 
buried in the substratum. — Cunningham. 
The species of Seootmm sometimes resemble small deformed agarics with the 
gills anastomosing to form cavities and a veil which ruptures to expose the 
lowermost chambers. The stem is carried upwards to the apex of the peridium 
and in the South Austmlian species the external part is usuallj’ short. Our 
species are, for the most part, soberl\’ coloured. Seeptmm coarctatum is strongly 
fragrant and may bo found on cla^' soil on the foothills near Adelaide. 
KEY TO THE SPECIES. 
Sporos smooth; peridium scabrid, hispid or tomentose. 
Glelia ochraceous or ferruginous. 
Spores elliptical, over 10 long 461. Secotium ochraceum. 
Spores globose, under 10 /r long 4G2. S. coarctatum. 
Gleba bronze or almost black. 
Spores obovate or elliptical, sepia coloured . 4G.3. S. melanospormn. 
Spores globose, ferruginous 4G4. S. agaricoides. 
Spores echinulate. 
Peridium smooth; spores obovate 465. S. leucocephalnm. 
Peridium rough; spores globose 46G. iS. Bodtvayi. 
\ Photo, hi/ ,S'. Tee and W.P.G. 
Figure 62 . — Secotium coarcUitum Berk. (No. 462). 
Beaumont, near Adelaide. 
4()1. Secotium ochraceum Rodw. (L., ochmeeus, ochre-coloured). — Peridium 
pale ochre-brown, .subglobose, base slightlj' excavated, j tot 4in. (I to 2 cm.) 
diameter, tomentose, very thin, hardly apparent; drying dingy brown, becoming 
rugulose. Stipe short, ii to 5 jnm. long, 2 mm. thick, pallid brown, equal, 
tomentose. hollow; eohmiella not expanded at the apex. Gleba ochraceous, 
labyrinthiform, cells minute, 1 to 2 mm. long, dissepiments thick. Sporos smooth, 
pallid ferruginous, elliptical, bluntly pointed at botli ends, 12 to 17 x 6 to 9 fi. 
— ^Cunningham. South Australia — Kational Park. Tasmania. JuUc 
4G2. Secotium coarctatum Berk. (L., coarctatus, pressed together). — Peridium 
pallid greyish -brown, obovate or depressed-globose, umbilicate, base strongly 
excavated and truncate, up to lin. (12 mm.) high, i to tin. (12 to 20 mm.) 
wide, rugulose, minutely and densely tomentose, coriaceous, thick ; white when 
fresh, pallid brown and rugulose when ilried. Stipe greyish, up to sin. (2 cm.) 
high, usually shorter, 2 to 3 non. thick, glabrous or tomentose, tapering from 
base to apex, hollow or stuffed; columella thickened at the apex. Gleba pallid 
