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Didymium physarioides, Klotzsch.
Strongylium minor, Fr., Gast., p. 9 (1817).
Physarum melanopus, Fr., Gast., p. 23 (1817).
Gonium lobatum, Spr., Syst., iv., 529 (1827).
Didymium marginatum, Fr., S. M., iii., 116 (1829).
Didymium melanopus, Fr., S. M., iii., 114 (1829); Berk., Ann.
N. H., No. 382; Cooke, Hdbk., No. 1118.
Didymium hcmisphericum, Fr., S. M., iii., 115 (1829).
Physanim nigrum, Fr., S. M., iii., 146 (1829); B. and Br.,
N. H., No. 1598; Grevillea, v., p. 12.
Gionium farinaceum, Link. Hdbk., iii., 416 (1833).
Didymium flamentosum, Wallr., 2187 (1833).
Didymium afflne, Raunk.
Sporangia spherical-hemispherical, stipitate. Stem thin, of
equal length or longer than the sporangium, expanded into a
circular hypothallus at tbe base, bright brown. Wall grey,
vjithout lime, under tbe microscope colourless. Columella glo-
bose-semiglobose, with tbe colour of the stem or brighter.
Threads of tbe capillitium nearly hyaline, expanded into numerous
shortly fusiform, brownish-molet sviellings. Spores smooth
or delicately warted, 8—9 g diameter.
Didymium affine, Raunk., Myx. Dan., p. 109 (in English),
Tab. 5, figs. 3, 4.
On germinating seeds in laboratory.
Copenhagen.
An unusual Didymium certainly in the wall being without
lime. Possibly abnormal.
Didymium Fuckelianum. Rost.
Sporangia hemispherical, umbilicate below, stipitate, stem
whitish witb gilvous or brownish shades, strongly plicate longitudinally,
lime on the wall in tbe form of stellate crystals, after
removal of the lime the wall is covered u'ith unsymmetrieal brown
or violet spots separated by colourless veins; stem entering the
sporangium as a distinct clavate or applanate brownish columella,
not at all adherent to lower part of the sp/orangial wall, surface
covered with prrotuherances which give origin to the threads of
the capillitium, threads violet, witb numerous irregular protuberances;
spores lilac, delicately warted, 9—11 g diameter.
Didymium Fiochelianum, Rost., Mon., p. 161, f. 134; Cooke,
Myx. Brit., f. 134; Sacc., Syll., No. 1307.
On twigs and pine leaves. Germany.
(Rostafinski’s Synonyms.)
Didymium squamulosum, Fckl., Symb. Myc., p. 341, non A.
et. Sz. (1569).
Didymium Fuclcclianum, Rost., Fckl., S. M., 2, Nach., p. 73
(1878).
Didymium praecox, De Bary.
Sporangia irregularly bemispberical, wall double, the outer
white, strongly rugulose, after maturity breaking away in small
colourless patches, covered with minute stellate crystals; inner
wall greyish lead-colour, rigid, witb small irregular granules of
lime, yellowish flesb-colour after removal of tbe lime; stem
generally short, yellowish flesh-eolour, witb delicate oblong
striations, passing into the peridium as an irregidarly spiherical,
often applanate yellowish flesh-coloured prolongation; threads of
capillitium very delicate, solid, colourless, or some violet with
many irregularly spherical protuberances below the acute angles
of tbe bifurcations, combined constantly by tbe branches and
transverse threads to form a network; spores subviolet, membrane
very rigid, with a few scattered short spiines, 8—9 g
diameter.
Didymmm praecox, De Bary, in Rab., Fung. Eur., n. 367;
Rost., Mon., p. 163; Sacc., Syll., 1306.
Germany.
Didymium squamulosum, Fr. (figs. 46—52).
Sporangia subglobose, slightly flattened below, and more or
less umbilicate, stipitate or sessile, coat of lime at first consisting
of a continuous white crust of minute granules, which soon