OF SOUTH AUSTRALIA. 
291 
4(i5. Secotium leucocephalum ]Mass. (Gr., leukos, white; kephalon, tlie head). — 
Peridium dingy-gi-ey, depressed -glotjose, somtnvhat urabilicate, base truncate, 
excavated, i to Jin. (9 to nun.) Iiigli, 4 to lin. (20 to 20 nun.) wide, smooth, 
minutely longitudinally striate, glabrous, margin tardily separating from the 
8ti[>e; drying pallid brown, surface becoming rugose. 'Stipe whitish, slender, 
■i to lin. (12 to 25 mm.) long, ,3 to 4 nun. thick, attenuate downwards, solid, 
striate, smooth, polished; columella expanded at the apex. Gleba ferruginous, 
cellular, cells laterally compressed, up to 3 nun. long, dessepiments thin. Spores 
verruculose, pallid ferruginous, obovate or obovate-elliptieal, commonly lachrymi- 
forin, ]'ounded at one end, pointed at the other, 9 to 11 x o to 7 /r; epispore 
thin. Solitary on sandy soil. — Cunningham. South Australia — Mount Lofty, 
Waterfall Gully. New Zealand. .Tune, August. 
Kid. Secotium Rodwayi Mass. (After Leonard Kodway, C.M.G., for many years 
Government Botanist of Tasmania) Peridium ochraceous white, depressed- 
globose, umbilicate, base deeply excavated, t to IJin. (2 to 3 cm.) diameter, 
tomentose; drying dingy-brown, becoming rugulose. Stipe hardly apparent, 
3 X 2 mm., subequal, hollow, tomentose. Gleba ])allid-ochracoous, labyrinthiform, 
cells minute, 1 mm. long, dissepiments thin. Spores verniculose, hyaline, globose 
or subglobose, apiculate, 6 to 9 /r; epispore thin, llypogean, solitary in sandy 
soil. — Cunningham. South Australia — Mount Lofty. Tasmania. April, June. 
LYCOPEKDALES. 
Peridium usually epigaean, sessile or stipitate, of 2, 3, or 4 layers, dehiscing 
by an aj)ical pore (or by several pores), by weathering of the apex of the 
endoperidium, circumscissile cleavage of the endoj)eridium, or irregular rupture 
of this membrane. Gleba at maturity pulveinlent, with a copiously developed 
capillitium. Basi<lia 1 to S-spored. — Cunningham. 
TULOSTOMATACEAE. 
Plants at first hypogaean, completing their development below ground, 
becoming elevated upon a rapidly elongating stem as they a|)proach maturity. 
Peridium 2-layerod, borne at the apex of a simple but well developed stem which 
in Fodaxon traverses the gleba as a columella. Gleba of snores and a well 
developed capillitium of simple or branched, hyaline or coloured hyphae. Basidia 
bearing apically (laterally in Tulo.stoma) 1 to 4 coloured, smooth or verrucose 
spores. — Cunningliam. 
PODAXONOIDEAE. 
Basidia arranged in fasciculate clusters which are persistent at maturity. 
PODAXONEAE. 
Peridium carried at the apex of a stem which traverses the gleba, dehiscing 
by irregular longitudinal fissuring. 
POD AXON Desvaux. 
(Gr., pms, podos, a foot; axon, axis.) 
Plant at maturity consisting of a peridium borne on a strongly developed 
stem, which traverses the gleba as an axile columella and is firmly attached to 
the apex of the peridium. Peridium of two layers, a fugacious scaly exoperidium, 
and a persistent membranous endoperidium; dehiscing by longitudinal fissure and 
by becoming free from the stem at the base. Gleba of si>ores and a copious 
capillitium, to the threads of which are attached the fascicles of basidia; 
capillitium threads simple, sparingly branched, scantily septate, flattened, coloured 
or hyaline. Spores coloured, smootli, continuous, with a 2-layered wall apically 
perforate by a distinct germ pore; borne on short sterigmata on the clavate or 
subglobose basidia. Growing solitary in sandy soil. — Cunningham. 
KEY TO THE SPECIES. 
Capillitium copious, tough; threads deeply coloured. 
Spores chestnut or reddish-brown, often fuscous and 
opaque 4d7. Fodaxon pistillaris. 
Capillitium scanty, tenuous and fragile, threads hyaline 
or tinted only. Sjjores oli\'aceous or pallid chestnut, 
not reddish 468. P. loandensis. 
