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with numercms small, discoid, coloured pirojections irregidarly
scattered, combined to form au irregular network, interstitial,
sincdl, elliptical aiodlings containing colourless granides of lime,
very rare ; spores brown with lilac tinge, globose, coarsely warted,
14 g diameter.
Physarum 'cinereum, Saco., Myc. Ven., Exs., n. 1101.
On living or dead leaves, twigs, &o. Britain (Epping Forest);
Italy.
The above, if in reality a variety of Physarum cinereum,
differs considerably in the structure of tbe capillitium and the
large, coarsely warted spores. Its occurrence in Britain and
Italy suggests it to be a constant form.
Physarum chrysotrichum, B. and C.
Sporangia sessile, subglobose when scattered, often irregular
or crowded and more or less confluent, wall rigid, ustmlly
grantdated with prqjevting lumps of lime, varying from yellow
through fulvous to almost clear vermilion; capillitium dense,
nodes numerous, large, irregidarly angular, file d loith yellow or
tawny lumps ■ of lime, connected at various points hy long, thin,
empty internodes, some of tbe nodes are small and without lime;
spores lilac, globose, minutely warted, 7—8 g diameter.
Physarum chrysotrichum, B. and C., Grev., vol. ii., p. 66.
(Type in Herb. Berk., Kew, n. 10,804.)
Physarum inaequalis, .Peck, 31st Keport, p. 40.
Badhamia decipiens, Rost., Mon. App., p. 4.
“Physarum subglohosum, (B. and C.).” Sacc., Syll., vii,, 1,
n. 1226. (I am not aware that there is any such species by
B. and C., and it is obviously a slip in Sacoardo’s Sylloge for
P. chrysotrichum.
On moss, wood, &o. United States.
The type specimen is a true Physarum, as will be seen by
the above description, and on tbe same piece of moss-covered
wood ranges through the colours given above.
Physarum scrobieulatum, Mass.
Sporangia sessile on a broad or narrowed base, seeded on a
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thick, wide-spreading hypothallus, scattered or aggregated, often
irregular and aethalioid, or several blending together to form
a plasmodiocarp, pale flesh-coloiir, brittle, often furfuraceous;
capillitium dense, forming an irregular network, nodes numerous,
large, irregularly angtdar, filled with yellow granules of lime,
connected at several points by long, thin, colourless internodes
without lime; columella absent; spores lilac-brown, globose,
minutely warted, 13—14 g diameter.
Didymium scrobieulatum, Berk., Hook. Journ., vol. iv., p. 66.
Physarum cinereum, Sacc., Syll., vii., 1, n. 1189 (in part.).
(Type in Herb. Berk., n. 10,774.)
On charred wood. Australia.
Distinct from P. cinereum in the size of the spores, wide-
spreading, firm hypothallus, and colour of the sporangial wall.
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Physarum Bostafinskii, Mass.
Sporangia distinct, conglomerated, sessile, rounded or angular,
depressed, exterior membrane thickish, granular, chalky, fragile,
yellow or ochraceous, interior wall tbin, grey or yellowish, from'
0'2—0 5 mm. diameter; capillitium furnished witb numerous
irregularly angular nodes containing coloured gxanules of lime;
columella cylindrical, spores minutely spinulose, blackish-violet,
8—9 g diameter.
Physarum eonglomeratum, Rost., Mon., p. 100; Saco., Syll.,
vii., 1, n. 1184.
On leaves, moss, &c. Germany; Sweden; Finland; San
Francisco.
I am not acquainted with the present species, which is
certainly not Didcrma eonglomeratum, Fr., as supposed by
Rostafinski, hence tbe localities given by Rostafinski may or
may not show tbe distribution of this species; the same applies
to his synonyms.
(Rostafinski’s Synonyms.)
Diderma ochraeeum, Hoffm., FI. Germ., iii., t. 9, f. 2, b (1795).
Peticidciria ochracea, Poir., Ency. ap Streintz (1795).