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hrigU coppery tinge, basal portion often remaining as a frill
round the stem; stem elongated, tapering upwards, expanding
at the base into a minute, circular hypothallus, brown; columella
cylindrical, not more than one quarter the height of the
sporangium, producing a t the apex several primary branches,
which are at once divided into numerous arcuate branches of equal
thickness that combine to form a dense net, threads brown, often
studded with organic lumps; spores lilac-brown, globose, smooth,
14—16 g diameter.
Stemonitis physarioides, A. and S., Var. suboeneus, Berk., in
Herb., n. 10842.
On slender twigs, moss, &c. Britain (Bulmer, Yorks); United
States.
Remarkable in the capillitium consisting entirely of equal,
rather stout, arcuate threads comhined into a network of small,
sub-equal meshes. From 2'5—3 mm. high, sporangium rarely
attaining to '5 mm. diameter, constantly the colour of new
copper.
lamproderma leucosporum, Rost.
Sporangia spherical, about '5 mm. diameter, with various
metallic tin ts ; stem black, shining, subulate, thin, passing into
tlie sporangium as an exactly cylindrical, truncate columella;
threads of the capillitium from the base variously branched and
combined to form a compact network, blackish when the spores
are blown away; spores pale violet, 8—9 g diameter, smooth.
TMmproderma leucosporum, Rost., Mon., App., 26; Saoc., Syll,
vii., 1, n. 1.350.
Lamproderma nigrescens, Rost., Mon., p. 205 (in part).
Germany.
Lamproderma arcyrionema, Rost.
Sporangia spherical, very small, with a silvery metallic lustre,
stipitate, stem straight, subulate, black, shining, dilated into a
very thin, blackish-purple hypothallus, and passing into the
sporangium as a very slender, cylindrical, truncate columella;
branches of the capillitium everyiohere of uniform thickness.
divided from the base, arcuate, variously interlaced, and combined
to form a dense net without free bi-anehes; spores pale violet,
smooth, 6—7 g diameter.
Lamproderma arcyrionema, Rost., Mon., p. 208; Saoc., Syll,
vii., 1, n. 1352.
Poland.
Judging from the description, the present species appears to
approach very closely such species as Stemonitis Friesiana.
B. Spores warted or eehinulate.
Lamproderma echinulatum, Eost.
Sporangia globose, dark steel-blue or blackish, iridescent;
stem thick at the base, becoming attenuated upwards, sometimes
sub-cylindrical black, filled with large cells that become
smaller upwards; columella thick, filled with cells like the
stem, about one-third the height of the sporangium, sometimes
clavate; capillitium dense, originating from apex of columella
and at once forming an irregular netwm'k without the usual
undivided primary h-anehes, tubes pale, irregular, arcuate, often
flattened and triangular at the nodes; spores globose, dingy-
purple, coarsely eehinulate, 15—22 g diameter.
Lamproderma echinulatum, Eost., Mon., Append., p. 25; Saoc.,
Syll, vii., 1 , n. 1344.
Stemonitis echinulata, Berk., FI. Tasm., p. 268.
(Type in Herb. Berk., Kew.)
Amongst moss. Tasmania.
Gregarious, springing from a hypothallus, 3—-4 mm. high.
Departing from the usual type of Lamproderma in having every
part of the capillitium comhined to form a network with arcuate
branches. Differs from GomaU-icha in the capillitium originating
from apex of thick columella only. Remarkable in having
the stem and columella filled with large cells.
Lamproderma Listeri, Mass. (n. sp.) (figs. 202, 203).
Sporangia globose, dark-purple or blackish, iridescent, lower
portion sometimes remaining as a frill round the stem; oolu