OF SOUTH AUSTRALIA. 
323 
5-i;U Cyathus olla (Batsch) Peis. (L., olla, a pot) .— Peiidium at first 
urceolate, becoming campanulate, to 3in. (15 min.) tall, i to (in. ((i to 12 mm.) 
ivide at tlie apex, tapering strongly to tlio sessile, truncate base; exterior grey- 
faivn, bleaching pallid yellow, clothed with fine appressed tomentum, interior 
smooth or somewhat concentrically zoned, dull lead colour, shining; margin 
strongly expanded and flaring, slightly or not recurved, entire, cremate. Peridiola 
lenticular, numerous, dark-brown or lead-ooloured, large, 2 to .'1.5 mm. diameter, 
smooth, or minutely rugulose when dry; tunica thin, dingy white, closely adnate. 
Spores obovato or elliptical, apex rounded, base bluntly pointed, 8 to 15 x (i to 
10 /r. Growing solitary or caespitose on rotting twigs, dead grass stems, etc., 
or on the gnound. South Australia — Mount Lofty, Islington, Beaumont, near 
Brighton, Enfield, Narrung, Ooldea. Victoria. Tasmania. Nenv Zealand. 
Proiiably world-wide. January to Ueeember. 
SPHAEEOBOLACEAE. 
Peridium sessile, of 11 or 4 distinct layers; dehiscence by stellate rupture of 
the apex of the exoperidium, and evagination of the endoperidium. Peridiolum 
solitary, globose or lenticular. Basidia 4 to (1- or 8-spored. — Cunningham. 
Containing the single genus SPllAEllOHOLUS. 
SPHAEEOBOLUS Tode. 
(Gr., sphaira, a ball; bolos, a throw.) 
Peridium of 3 or 4 distinct layers : an exoperidium of two layers, the outer 
thick and composed of closely woven hyphae, the inner of pseudoparenchyma, 
(wanting in one species) ; and an endoperidium with an outer tenuous layer of 
parallel hyphae and an inner palisade of densely packed ])rismatic cells arranged 
radially. Dehiscence by stellate rupture of the apex of the exioperidiium, and 
evagination of the endoperidium, which discharges forcibly the solitary 
peridiolum. Peridiolum composed of a single layer of woven (or pseudoparenchy- 
matous) hyphae, enclosing the gleba of spores embedded in mucilage. Spores 
hyaline, elliptical or globose, smooth, borne sessilely on the basidia. — Cunningham. 
544. Sphaerobolus stellatus Tode (L., stellatus, star-shaped). — Peridium sessile, 
at first embedded in the mycelial weft covering the substratum, becoming some- 
what erumpent, subglobose, and up to 2 mm. diameter, fleshy, externally hirsute 
and dingv- white, inteinallv smooth and orange. Pei'idiolum globose, reddish- 
brown, 0.75 to 1.25 mm. diameter, lenticular when dry. Basidiospores hyaline, 
continuous, globose lor obovate, (i to 10 x 5 to 8 /r; epispore smooth, 2 ft thick, 
cell-contents granular. Crowded on decaying wood and leaves, old sacking, 
manure, and on the ground. — Cunningham. South Australia On fallen pieces 
of stringy-bark, National Park. Augiist. 
EXOBASIDIINEAE. 
EXOBASIDIALES. 
Same characters as the order Exobasidiaceae. 
EXOBASIDIACEAE. 
Alycelium vegetating in the interior of the living host and 
giving rise, on the exterior, to basidia E^xobasidvitTn. 
