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sporangium, apex rather obtuse ; branches of the capillitium
springing from apex of columella, dichotomously hranelied, fili-
fonn, fuliginous; spores globose, 9— 10 g diameter, pale smoky-
violet, minutely eehinulate.
Lampi'oderma nigreseens, Sac., Michelia, II., p. 262; Sacc.,
Syll., vii., 1, no. 1854 (not of Rost.).
On fallen leaves of Buxus, Robinia Pinus, heaps of chips, &c.
Selva, N. Italy.
Distinguished from Z. physarioides by its smaller size and
smaller spores, and from Z. violaceum by the black spherical
sporangium, etc. (Saco.)
Saocardo's name is antedated by Rostafinski’s.
Lamproderma arcyrioides, Rost. (figs. 145—148).
Gregarious or scattered, springing from a firm hypothallus;
sporangia globose, shortly elliptical or^ obovate, -vvall thin,
blackish, with blue, purple, green, or reddish metallic tin ts ;
stem usually becoming thinner upwards, blackish, shining,
sometimes obsolete, passing directly into the sporangium as
a short columella that breaks up at the avex into several
equal, ascending branches, these again produce numerous lateral
branches, at some distance from the base, tlud anastomose laterally
and form a dense, irregular network, threads pale greyish-
bn-own; spores globose, dirty violet, minutely warted, 11—16 g
diameter.
Lamproderma arcyrioides, Rost., Mon., p. 206; Cke., Myx.
Brit., p. 50; Saco., Syll., vii., n. 1353.
Exsiee.—Rab., Herb. Myc., 431; Roum., Fuug. Gall., 908;
Fuckel, Fung. Rhen., 1447; Rab., Fung. Eur., 797.
On rotten wood, dead leaves, &c. Britain (New Forest,
Scarborough, Carlisle); France; Germany; Sweden; Denmark;
United States.
From I'O—3 mm. high. Near to Z. violaeea, but distinguished
by the larger and more coarsely warted spores, and
in the main branches of the capillitium remaining unbranched
for some distance at the base.
(Rostafinski’s Synonyms.)
Stemonitis arcyrioides, Somm., Tidsk. (1827) ; Berk., Ann. N.
Hist., No. 114; Cke., Hdbk., n. 1163.
Stemonitis chalybea, Pers., in litt.
Stew.onitis Garestiae, Ces. and Not. (1861); Erb. Cr. Ital., 888.
Stemonitis Morthieri, Fckl., Exs., n. 1447 (1860).
Lamproderma physarioides, Rost.
Gregarious or scattered ; sporangia globose, wall pale, with a
silvery sheen, stem elongated, tapering upwards, base expanding
into a small circular hypothallus, black ; columella about one-
third the height of the sporangium, clavate; threads of capillitium
purple-brown, springing from the davate portion of the
columella, repeatedly branching iri a diehotomous manner, the
branches anastomosing to form a network, becoming dense and
small meshed toioards the periphery; spores globose, brown,
mintitely verruculose, 11—15 g diameter.
Lamproderma physarioides, Rost., Mon,, p. 202; figs. 56, 59,
62; Cke., Myx. Brit., p. 49, figs. 55, 59, 62; Sacc., Syll, vii.,
n. 1342.
On rotten wood, moss, &c. Britain; Germany; U. States.
Distinguished by the pale, silvery sporangial wall, the clear
brown spores, and the clavate columella; 2—3’5 mm. high.
(Rostafinski’s Synonym.)
Stemonitis physarioides, A. and S., Consp,, t. 11, f. 8 (1805) ;
B. and Br., Ann. Nat. Hist., no. 386 ; Cke., Hdbk., no. 1161,
C. Spoi'cs reticulated.
Lamproderma Fuckelianum, Rost.
Sporangia globose, almost sessile, slightly umbilicate below,
reddish, metallic ; stem from its shortness almost ineonsqncuous,
entering the peridium for nearly half its length as a conical
columella ; threads of the capillitium sparingly branched, comhined
into a loose network ; spores pale violet, with thin ridges
combined to form a network, 8—9 g diameter.
-J ii,