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reddish metallic sheen; stem black, shining, rigid, subulate,
entering the peridium as an ohovate columella, and about half
its height; capillitium of dusky threads springing from apex
of columella, branches fo r some distance simple, then becoming
very much branched, laterally connected, and forming a dense net
at the periphery, spores dingy-violet, minutely spinulose, 10—11 g
diameter.
Lamproderma Schimperi, Rost., Mon., p. 203, fig. 63; Sacc.,
Syll., n. 1343; Cke., Myx. Brit., fig. 63.
Germany.
lamproderma Sauteri, Rost.
Similar to L. violaceum, but more rigid in every p a r t;
sporangia spherical, slightly flattened below, 1 mm. broad,
shining with various metallic tin ts ; stem black, subulate,
springing from a well-developed hypothallus; columella cylindrical,
truncate; capillitium threads branched from the base and
forming a dense network, pale when the spores are blown away;
spores dingy-violet, densely covered with qiinules, 12—15 g
diameter.
Lamproderma Sauteri, Rost., Mon., p. 205; Saco., Syll., vii., 1 ,
no. 1348.
Tyrol.
Entire specimen 2 mm. high.
Lamproderma minutum, Rost.
Sporangia spherical, f mm. diameter, slightly metallic; stem
black, slender, equal; columella cylindrical, thin, truncate;
threads of capillitium colourless, rarely fasciculately branched,
fascicles blending togethe.r; spores violet, delicately verruculose,
6'6 g diameter.
Ijamproderrna minutum, Rost., Mon,, Append., p. 26; Sacc.,
Syll., vii., 1 , n. 1361.
France.
Lamproderma columbinum, Rost.
Sporangia stipitate, sub-ovate or globose, blackish, reflecting
variously coloured metallic tin ts ; stem slender, attenuated upwards,
longitudinally wrinkled below, purple-black; columella
cylindrical, more or less attenuated at the apex, about half the
height of the sporangium; capillitium pale, primary Iranelus
short, but distinct, thick, soon branching and dichotomosing in
an irregular manner, combined by transverse branches to form
an irregular network with numerous free, thin tip s ; spores
globose, pale violet, minutely warted, 12—16 g diameter.
Lamproderma columbinum, Rost., Mon., p. 203, f. 61; Cke.,
Myx. Brit., f. 61; Sacc., Syll., n. 1345.
Lamproderma iridescens, Rost., Mon., App., p. 25 ; Sacc., Syll.,
n. 1346.
Physarum iridescens. Berk., Hook. Journ., 1851, p. 20.
Exsiee.— &db., Fung. Eur., 2213; Roum., Fung. Gall. Exs.,
n. 1685.
On moss, wood, &c. Britain (Orton Wood, Leicester; Rudloe,
Twycross, Carlisle); Europe; United States.
Prom 2— 3 mm. high, sometimes sessile and even aethalioid ;
distinguished by the very short, stout, primary branches of the
capillitium, the smaller branches are sometimes nodulose at
intervals.
(Rostafinski’s Synonyms.)
Mucor violaceus, Leess., El. Herb., n. 1128 (1775).
Trichia violaeea, Hoffra., Veg. Cr., p. 5, t. 2. f. 1 (1790).
Physarum columbinum, Pers., Syst., p. 173 (1801).
Trichia oolumbina, Poir., Encycl., no. 17 (1808).
Physarum salicinum, Schum., El. Saell., n. 1431 (1803).
Physarum bryophihmn, Fr., S. M., iii., p. 135 (1829).
Physarum bryophilum, ¡3 melanocephcdum, Cda., Ic. 1, p. 22,
t. 4, f. 287 (1837).
Lamproderma Saocardianum, Mass.
Broadly gregarious, altogether blackish, sporangia perfectly
spherical, not umbilicate, i mm. broad, at first yellowish then
opaque black, smooth, persistent, erect; stem filiform, 5 mm.
high, 40 g thick, black; hypothallus (when evident) distinct,
minute, rufesoent; columella terete, half the height of the
-hi