I
64 A Monograph o f the Myxogastres.
very thin threads connecting large, h iw n , irregularly stellate
knots crowded with granules; stem slender, very much elongated,
straight or flexuous, erect or curved above, broionish purple;
spores very pale, globose, minutely verruculose, 5— 7 g diameter.
Orihraria microcarpa, Rost., Mon., p. 236; Schroeter, p. 105;
Karst., Myc. Fenn., iv., p. 86; Sacc., Syll., no. 1413.
f e r á .—Ellis, North Amer. Fung., 1398 (as Crilyraria tenella,
Schrad.); Rav. Fung. Car., 79 (as C. intricata).
On decayed pine-wood and on sphagnum. Britain (Cleve-
don, Bristol); Germany; Sweden; Finland; United States.
Gregarious, 2’5—3 mm. high. Distinguished amongst species
without a calyculus by the small sporangium and elongated
stem; also by the elongated, flattened, radiating ribs a t the
base of the network, thus approaching the type of structure
on which Rostafinski's genus Heterodictyon was founded.
Gribraria splendens, Rost.
Sporangia globose, stipitate, erect, yellowish, calyenlus not
differentiated, membrane betiocen the thickened portions for a long
time persistent; nodes large, angular, containing granules; stem
elongated, slender, sometimes flexuous, purple-brown; spores
pale yellow, globose, smooth, 5—7 g diameter.
Crih-aria splendens, Rost., Mon., p. 236; Karst., Myc. Fenn.,
IV., p. 85; Raunk., Myx. Dan., p. 50, t. ii., f. 6; Sacc., Syll.
n. 1414.
On rotten pine-wood. Germany; Finland; Sweden; Switzerland.
Scattered, about 2 mm. high, stem about three times as long
as sporangium. Distinguished by the very persistent nature
of the membrane between the thickened portions.
(Rostafinski’s Synonyms.)
Bietydium splendens, Schrad., Nov. PI. Gen. p 14 t iv
f. 5—6 (1797). ’ ’ •
Crilyraria splendens, Pers. Syn., p. 191 (1801).
Trichia splendens, Poir., Ency., 1. c. viii., no. 28 (1808).
Gribraria. 65
Gribraria dictydioides, Cke. and Balf.
Sporangia globose, stipitate, dingy oohraceous, calyculus
absent; permanent ribs broad and flattened below, anastomosing
laterally, filled with granules, passing upwards into numerous
elongated or irregularly angular, prominently convex, coloured
nodes containing granules, and connected at various points by
very thin, colourless threads; stem elongated, slightly thinner
upwards, straight or flexuous, from dirty ochraceous to brown;
spores globose, almost colourless, minutely vcrrucose, 5—7 g
diameter.
Gribraria dictydioides, Cke. and Balf., Rav. Fung. Amer.,
475.
(Type in Herb. Kew.)
On wood. Aiken, S. Carolina, and Philadelphia, U. S.
Gregarious, about 3 mm. high. The permanent portion of
the sporangium closely resembles that of C. argillacea, but in
the latter the spores are warted and the sporangium sessile.
The present species also agrees with C. microcarpa in the
absence of a calyculus, but in the last-named species every
part of the permanent portion consists of irregularly stellate
nodes connected by thin bands, and the spores are warted.
In 0. dictydioides, the nodes of the upper portion of the network
are convex and very prominent. The stem is sometimes
branched, or composed of two or three stems more or less
completely blended together.
Gribraria argillacea, Pers. (f. 105—107).
Sporangia crowded or scattered, shortly stipitate or sessile,
suhglobose or broadly pyriform, thin portions of sporangium
very persistent, dirty ochraceous,- shining, calyculus ab sen t;
thickened portions of sporangium in the form of long, more
or less parallel, laterally connected ribs, passing upwards into
an irregular network with irregular nodes containing granules;
the internodes have frequently a central, swollen, fusiform,
granular portion; mass of spores dingy ochre; spores globose,
minutely warted, 5—7 g diameter.