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depressed, circular in outline, wall veiy thin, chalk-white,
polished, breaking away in irregular patches; columella flattened,
white, small, mass of spores blackish-pui'ple; threads of capillitium
equal, about 2 g thick, frequently branching and combined
laterally to form a deme net; spores globose, smooth,
dingy violet, 9—^10 g diameter.
Ghondrioderma Saundersii, B. and Br., in Herb.
(Type in Herb. Berk., no. 10744.)
On living fronds of ferns. Java.
Resembling superficially circular forms of Ghondrioderma dif-
/or»ic,but distinguished by the columella and dense capillitium.
Sporangia 2—3 mm. diameter, outline circular, often waved; a
very thin powdery layer of minute granules of lime is frequently
present oh the mass of spores, wbiob then appears dark grey.
Chondrioderma affine, Rost.
Sporangia small, densely crowded on a common hypothallus,
irregularly angular, depressed, surface smooth, greyish-white;
columella irregular, small, white, rarely very conspicuous;
threads of capillitium thin, forming a net, dirty-violet, often
furnished with fusiform subviolaceous protuberances; spores
sub violaceous, densely aculeate, 10—14 g diameter.
Ghondrioderma affine, Rost., Mon. App., p. 18; Saoc., Sylb,
1271.
Poland; Germany; France.
Appears to be very closely allied to Didymium spumarioides
of the present work {Ghondrioderma spumarioides, Rost.); differing
in the smooth surface of the sporangial wall, the dingy
colour of the capillitium, and the larger, densely aculeate
spores.
* * Sporangium coloured.
Chondrioderma testaoenm, Rost.
Sporangia gregarious or crowded, sessile on a broad base,
hemispherical or elliptical, rather depressed, sometimes irregular
from mutual pressure, outer wall smooth, from brieh-red to almost
colourless, dehiscing irregularly, inner wall violet-grey; tlireads
of capillitium slender, brownish-lilac or almost colourless, frequently
bifurcating and anastomosing, sometimes flexuous;
columella subglobose or depressed, reddish or almost colourless;
rugose, spores globose, brownish-lilac, minutely verruculose,
9—11 g diameter.
Ghondrioderma testaceum, Rost., Mon., p. 179, figs. 135—136 ;
Schroeter, p. 135; Sacc., Syll., n. 1274; Cooke, Myx. Brit.!
figs. 135, 186.
Exsicc.—Fuckel, Fung. Rhen., 1467; Desm., Cr. Fr., Ser. I.,
706 (as Didxrma tcstace%mv) \ Ellis and Everh., N. Amer. Fung.,
2093.
On mosses, leaves, twigs, &c. Sweden; Germany; Finland ;
Hungary; United States.
Varying from '5—1 mm. diameter; the colour of the sporangium
bright brick-red, but it is sometimes much paler.
(Rostafinski’s Synonyms.)
Beticularia sphaeroidalis, Var. 2, Bull. Champ., p. 94. t. 446,
f. 2, D (1791).
Didymium testaceum, Sohrad., p. 25, t. 5, f. 1, 2 (1897).
Diderma testaceum, Pers. Syn., p. 167 (1801).
Gionium testaceum, Spr. Syst., iv., p. 529.
Chondrioderma sublateritium, Rost.
Densely gregarious, sessile on a broad base, but rarely deformed
by crowding, circular in outline, depressed, umbilicate above, pale
brieh-red, polished; inner wall lead-colour; columella small,
flattened, reddish, capillitium forming a flaccid network, threads
thin, sometimes flexuous, witb here and there small fusiform
swellings without lime; spores globose, pale lilac-brown, minutely
verruculose, 9—11 g diameter.
Ghondrioderma sublateritium, B. and Br., Journ. Linn. Soc.,
vol. xiv., p. 82.
(Type in Herb. Berk., n. 10728.)
Gn leaves. Ceylon.