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Prototrichia chamaeleontina, Mass.
Sporangia spherical or spherico-depressed. attached by a
narrow base, wall very thin, highly iridescent, dehiscmg irregularly
; capillitium well-developed, threads thick at the point
of attachment, tapering upwards, often nodulose, without external
markings, breaking up into several free, pointed spines that
are sometimes connected by transverse hands, dingj' brown; spores
pale pink, globose, minutely warted, 9— 11 g diameter.
Cornuvia metallica, Eost., Mon. App., p. 33; Cooke, Myx.
Brit., p. 76; Saco., Syll., n.
Physarum metcdlicum, Berk., Mag. Zool. and Bot., No. 29,
t. 3, f. 8 ; Cooke, Myx. Brit., p. 16.
(Type in Herb. Berk., Kew.)
On twigs, hark, dead leaves, &c. Britain (Clifton, N o tts;
Carlisle, Smethwick).
Scattered or in groups of 2—3, about 1 mm. diameter.
Sporangial wall very iridescent, reflecting green or rosy tints,
mass of spores pinkish or flesh-colour. The previous existence
of a species of Prototrichia called metallica, accounts for the
change of name in the present species.
Ophiotheca, Curr. (emended).
Sporangia sessile with single or double wall, frequently containing
amorphous particles of lime, either regular, circular, or
depressed, with circumscissile dehiscence, or aethalioid, or forming
a vein-like, anastomosing plasmodiocarp; capillitium forming
a loose network, attached to the wall at various points,
and usually with free arms, threads with spines, warts, or short
bands irregularly scattered ;. spores globose.
Ophiotheca, Currey, Quart. Journ. Micr. Science, vol. ii.,
p. 240.
Perichaena, Rost., Mon., p. 292; Cke., Brit. Myx., p. 77;
Sacc., Syll., vii., 1, p. 420 (all in part).
Gornuvia, Rost., Mon., p. 289; Cke., Brit. Myx., p. 76; Saco.,
Syll., vii., 1, p. 423 (in part).
Closely allied on the one hand to Perichaena, and on the
other to Arcyria. Differs from the latter in the sessile, much
compressed sporangia often becoming aethalioid, presence of
lime in the wall, and the capillitium with numerous free arms
and attached to the wall at many points. From Perichaena
in the threads of the capillitium being in some way ornamented.
Lachnobolus differs in the stipitate sporangia.
DistriJ). Europe; United States; Cuba; Ceylon. Species 9.
A. Threads of capillitium spinulose.
Ophiotheca eircumseissa, Curr.
Sporangia either regular, circular, depressed, or dehiscmg in
an irregularly circumscissile manner, or becoming aethalioid,
sinuous, and often combined into a network; wall smooth,
chestnut, or brown; mass of capillitium and spores yellow;
threads of capillitiimi 2—4 g thick, with scattered, straight, or
bent spines, 1— 2 g long, combined to form an irregular network,
with numerous free arms often slightly incrassated at the tip s ;
spores globose, smooth, 8—19 diameter.
Ophiotheca chrysosperma, Curr. Quart. Micr. Journ., v., n ,
p . 240, t. 9, f. 1—5.
Gornuvia eircumseissa, Rost., Mon., p. 290; Cke., Myx. Bnt.,
p, 76 ; Saoc., Syll., n. 1432; Schroeter, Kr. FI, Sohles., 108.
Gornuvicc dictyocarpa, Crupa. Cosmos, Lemberg, 1866; Sacc.,
Syll, n. 1453.
On hark. Britain; Germany; France; Switzerland.
(Rostafinski’s Synonyms.)
Lignidium qucrcinum, Fr., Stirp. Femsp., 83 (1825).
Trichia, eircumseissa, Wallr., FI. Cr. Germ., n. 2219 (18.i3).
Arcyria glomcrata, Fr., Sun. Veg. Scand., 457 (1849).
Opihiothcca chrysospierma, Microsc, Journ., p. 240, t. 9, f. 1—o
(1854),
Trichia Curreyi, Crouan, 1. c., 16 (1867).