![](./pubData/source/images/pages/page64.jpg)
I
dehiscing irregularly; capillitium well developed, forming an
irregular, loose network, threads 2—4 g thick, irregularly
notched; spores globose, smooth, 13—14 g diameter; mass of
capillitium and spores dingy ochraceous. sometimes with a
suggestion of olive.
(Type in Herb., Kew.)
Exsicc.—Ellis, N. Amer. Fung., n. 726 (as Ophiotheca unibrina,
Berk.).
On wood, leaves, &o. Britain (Lyme Kegis, Yatton); U.
States.
Berkeley’s description of Ophiotheca umbrina is very imperfect,
as shown by examination of his type specimen, which proves
to be identical with Physarum vcrmieulare, Sz. Rostafinski had
not seen Berkeley’s type, but gave the original description and
changed the name to Perichaena variabilis, Rost. Berkeley’s
imperfect description of Ophiotheca umbrina curiously agrees in
many points with the present species which was unknown
to him. Rarely with simple, normal sporangia, usually elongated
and curved, forming rings, flexuous vein-like strands, or
combined to form a network. The species is a connecting link
between Perichaena and Ophiotheca, having the capillitium of
the former without distinct markings, hut the peculiar habit
of Ophiotheca.
Perichaena liceoides, Rost.
Sporangia globose, scattered or gregarious, dehiscing in an
irregularly circumscissile manner; spores smooiA, globose, 9— 10
g diameter; capillitium scanty, threads slender, branched, with
minute included granules.
Perichaena liceoides, Rost., Mon., p. 295; Saco., Syll., vol. vii.,
part I., n. 1438.
Licca pannorum, Cienk., Pringsh. Jahrb., vol. iii., p. 407,
t. 17, fig. 1 (not of Wallr.).
On leaves. Germany.
Eoubtful species.
Perichaena pallida, Berl.
Sporangia gregarious, very pale tan colour; spores yellow,
hut paler than in Perichaena australis, whose chestnut-coloured
sporangia and intense golden spore-mass distinguish it from
the present species.
Perichaena pallida, Berl., Sacc., Syll., n. 1446.
Stegasma pallidum, Oesati, Myc. Born., p. 12.
Borneo (Sarawak).
Perichaena australis, Berl.
S p o ran g ia often ciroinnate, an g u la r, c en tra l ones orbicular
a t first yellow, passing th ro u g h c h e s tn u t to brown, smooth lid
p la n e ; c ap illitium y e llow ; spores sub-globose, g ra n u la r within,
opaque, yellow.
Perichaena australis, Berl. Sacc., Syll, vii., 1, n. 1447.
Stegasma australe, Cesati, Hedwigia, 1874, p. 186.
Borneo.
Perichaena 1 pseudaecidium, Speg.
Sporanaia cylindrical, conical, or calyciform, 1—1'5 mm. long,
by 0-5—Ymm. broad, sessile or shortly stipitate, wall very thin,
cartilagineo-membranaoeous, base even or minutely rugulose,
dehiscmg at the apex in an irregularly laciniate or fimbriate
manner, chestnut or brownish; mass of spores and capillitium
citrin or yellowish; capillitium threads very slender, 1 g thick,
sparingly branched, here and there with solUary conical or elongated
branch-likc spines, yellowish, hyaline; spores globose, 6—7 g
diameter, often irregularly angular from mutual pressure, perfectly
smooth, pale vinous with yellow tinge.
Perichaena ? pseudaecidium, Speg., Fung. Guar., n. 321.
On living fronds of many different species of fern, and on
Tillandsia museoidcs.
A rg e n tin e Republic.
A very beautiful but paradoxical species exactly resembling
a folicolous Aecidium, will probably form the type of a new
genus (Speg.). Possibly a sp. of Chondrioderma.
L y c o g a la , Mich.
Sporangia aethalioid, grouped together iu an intricate manner,