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Lycogala argcntea, Pers., Disp., 7 (1797).
Lycogala tiirUnatum, Pers.. Syn., 157 (1801),
Strongylium fidiginoides, Ditm., t. 2, f. 1 (1809).
Fuligo lycoperdon, Schum., Saell., 1409 (1803).
Beticularia argcntea, Poir., Ency., vi., 20 (1806).
Beticularia unibrina, Fr. S. M., iii., 87 (1829); Corda, Ic., vi.,
f. 36 ; Eng. FI., v., 308; Cooke, Hdbk., No. 1100.
Sub-sect. I I. L ampeodermae.
Lampeodeema, Eost.
Sporangia globose or broadly obovate, usually stipitate, stem
continuous within the sporangium as a columella; threads of
the capillitium originating from the apex only of the columella,
primary branches either remaining simple for some distance
or branching irregularly from the base, the branches combining
to form an irregular network; wall of sporangium usually
iridescent, soon disappearing.
Lamproderma, Rost., Mon., p. 202; Cke., Brit. Myx,, p. 4 9;
Sacc., Syll, vii., 1, p. 390; Zopf, p. 156.
Closely allied to Diachaea and Stemonitis, but differing from
both in having the threads of the capillitium originating from
the apex of tlie columella only.
Distrib. Europe; United States; Ceylon; Australia; New
Zealand. Species 18.
A. Spores smooth.
Lamproderma violaceum, Rost. (figs. 152—164).
Gregarious on a strongly-developed hypothallus; sporangia
sub-globose, convex above, flattened or slightly umbilicate below ;
■wall thin, blackish, with a dark violet lustre; stem elongated,
black, thick at the base, attenuated upioards; columella about
half the height of the sporangium, filled with large colourless
cells; branches of capillitium almost colourless, springing from the
a'pex and sides of the columella, irregularly branched and comhined
into a network ; spores violet, globose, smooth, 9— 12 g
diameter.
Lamproderma violaeea, Rost., Mon., p. 204, fig. 64; Cke.,
Brit. Myx., p. 50, f. 64 ; Sacc., Syll., vii., no. 1394.
On wood, moss, &c. Britain (Shrew'shury, Castle Howard,
Yorks); United States.
A very distinct and beautiful species, characterized by having
the sporangium flattened or umbilicate below, and the almost
colourless capillitium springing from every part of the columella.
From 2—3 mm. high.
(Rostafinski’s Synonym.)
Stemonitis violaeea, Fr. S. M., iii., 162 (1829) ; B. and Br.,
Ann. Nat. Hist., 387; Cke., Hdbk., n. 1162.
Lamproderma irideum, Mass. (figs. 149—151).
Scattered ; sporangia globose, wall thin, with steel-blue, green,
or coppery metallic tints ; stem elongated, blackish-brown,
tapering upwards, expanded at the base into a small, circular
hypothallus ; columella cylindrical, about one-third the height
of the sporangium, giving origin at the apex to several thick,
ascending branches, which remain simple throughout the greater
portion of their length, towards the tips repeatedly bifurcating,
rarely anastomosing laterally, violet-brown, not paler at the tips ;
spores globose, violet-hrown, smooth, 11—15 g diameter.
Lamproderma arcyrioides, Yar. iridea, Cke., Myx. Brit., p. 50,
figs. 246—249 ; Saoc., Syll, vii., n. 1353.
Exsicc. Cke., Fung. Brit., Ser. I., 523 (as Stemonitis arey-
rioides) ; Cke., Fung. Brit., Ser. II., 523 (as Lamproderma
arcyrioides).
(Type in Herb., Kew.) .
On dead leaves, moss, &c. Britain (Hampstead).
Distinguished by the scattered habit, smooth spores, and in
the primary branches of the capillitium remaining unhranched
except at the tips.
Lamproderma suhoeneum, Mass.
Scattered ; sporangia globose, small, wall thin, broimi, with a