Crih-aria minima, B. and C., Grev., Vol. ii., p. 67.
Gribraria minutissima, Eost., Mon., App., p. 31; Sacc., Syll
n. 1405 (in part).
(Type in Herb. Berk., n. 10874.)
On pine planks. Lower Carolina.
Scattered, about f mm. high, stem erect, or usually curved
above. Perfectly distinct from G. minutissima in the presence
of a well-developed calyculus occupying the basal half of the
sporangium. Most nearly allied to G. intricata, which is distinct
in its larger size, presence of granules in nodes of network and
minutely warted spores. Rostafinski has evidently not seen
the type specimen of the present species, otherwise he could
not possibly have given it as a synonym of G. minutissima.
Gribraria mirabilis, Mass.
Sporangium spherical with a small, irregular calyculus;
persistent thickened pmiions of loall continuing fm- some distance
from the base as more or less parallel, irregular, flattened ribs,
joined laterally by thin threads, towards the apex forming an
irregular network with large, irregular nodes; mass of spores
obscure fulvous, spores smooth, 7 g diameter.
Heterodictyon mirabile, Rost., Mon., p. 231, fig. 16; Cooke,
Myx. Brit., fig. 16; Sacc., Syll., no. 140.3.
Germany.
The characteristics of the present species are—the small,
irregular calyculus, and the great length of the more or less
parallel flattened ribs, which only break up to form a reticulation
towards the apex of the sporangium.
Gribraria Bieniaszii, Mass.
Sporangia globose, stipitate, broion, calyculus occupying the
lou)cr third of the spm-angium, on the inside furnished with a
thickened network, margin dentate, teeth 30—40, continuing
upwards as long, linear, parallel ribs united by very thin horizontal
strands, passing above into a Gribraria-like netiom-k, nodes
small with from 3 6 angles and concave sides; stem elongated,
becoming attenuated upwards, hrcnmi, expanding into a small
I <1
hypothallus; spores clear yellow, wall smooth, thin, 5—7 g
diameter.
Heterodictyon Bieniaszii, Raoib., Hedw. 1889, p. 121.
On rotten trunks. Poland.
Stem 1’5—2-5 mm. high, sporangium 0'8—1 mm. diameter.
Distinguished from G. mirabilis by the larger sporangium
and the greater number of ribs forming the lower part of the
network.
Gribraria vulgaris, Schrad.
Sporangia globose or slightly flattened below, stipitate, caly-
cuhis shalloiv, ribs very thin, parallel, crowded, margin regularly
dentate, the very thin threads of the network springing from
the teeth of the calyculus, and combining to form a dense net,
nodes distinct, but very small, rarely containing a few granules;
stem slender, elongated, often rather flexuous, brown, with tinge
of purple, becoming thicker downwards and expanding into a
small hypothallus; spores very pale, globose, smooth, 5—7 g
diameter.
Gribraria vulgaris, Schrad., Nov. PL Gen., p. 6, t. i., f. 5;
Rost., Mon., p. 234, f. 26; Cke., Brit. Myx., fig. 26; Schroeter,
p. 105 ; Karst., Myo. Fenn. iv., p. 85 ; Sacc., Syll, no. 1410.
Exsicc. Rah., Fung. Eur., 676; Fckl, Fung. Rhen., 2100.
On decayed wood, especially pine. Germany; Sweden; Finland.
Gregarious, about 1'5—2 mm. high. Stem straight or curved
above. The features of the present species are—the shallow
calyculus with thin, crowded, parallel, or more accurately,
radiating ribs, and the very small knots of the network.
Gribraria elata, Mass.
Sporangia globose, erect or sub-cernuous, stipitate, calyculus
small, funnel-shaped, radiating ribs well-developed, margin regularly
dentate, teeth elongated, acute, nodes of network numerous,
coloured, irregularly angular, crowded with granules, with
several prominent, tapering processes, connected by very slender
bands; stem with the calyculus dark reddish-brown, elongated.