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capillitium well developed, snow-white; spores pale brownisli-
violet, epispore thick, warted, 10—12 g diameter.
Physarum affine, Kost., Mon., p. 94; Saco., Syll., vii., 1,
n. 1200.
On rotten wood. Germany ; Poland.
(Rostafinski’s Synonyms.)
a, FI. Dan., t. 776, f. 4 (1782).
(?) Trichia nivea, ------ ,-. . -
Ml, Trent, I.C., p. 288 (1797).
Physarum glaueum, Phillips.
(?) Trichia ricgosa.
Sporangia subglobose, and depressed or irregularly lobed,
more or less umbilicate below, grey, covered densely at first
with snow-white particles of lime; stem much shorter than
height of sporangium, blackish, thick, longitudinally lorinkled,
expanding into a common, firm, pale hypothallus; columella
absent; capillitium very dense, snow-white, nodes numerous,
large, angularly stellate, connected by very short internodes;
spores bright violet, globose, rather coarsely warted, 12—14 g
diameter.
Physarum glaueum, Phillips, in Herb.
Physarum lividum, Oke., Myxomycetes of the United States,
in Ann. Lyo. N a t Hist, of N. York, vol. xi., n. 12, p. 384.
Didymmm glaueum, Phillips, Grevillea, vol. v., p. 113, t. 88,
f. 6, a—e; Sacc., Syll., vii., 1, n, 1315.
(Type in Herb., Phillips, examined.)
On dead branches. California.
Scattered or gregarious, up to 1 mm. across, stem sometimes
obsolete. Certainly not synonymous with Physarum lividum
as supposed by Oooke, but much more nearly allied to Physarum
•nephroideum, from which it is distinguished by the very dense
capillitium of numerous large nodes only separated from each
other by constrictions, hence every portion contains granules of
lime as in the genus Badhamia.
Physarum cupripes, Berk, and Rav.
Sporangia subglobose, umbilicate below, darh grey, often with
a purple tinge; stem elongated, slender, attenuated upwards,
straight or slightly bent above, copper-colour, longitudinally
wrinkled, filled witb masses of lime and organic matter, usually
expanding at the base into a small, circular hypothallus; columella
absent; threads of capillitium numerous, thin, combined
to form an irregular, dense net, swollen elliptical portions containing
yellowish granules of lime, numerous, small, either formed
at the angles of bifurcation or interstitial; spores globose, pale
lilac, mimitely warted, 9—12 g diameter.
Physarum cupripes, B. and R., Grev., vol. ii., p. 65.
(Type in Herb. Berk., Kew, n. 10,779.)
Physarum Berkeleyi, Rost, Mon., p. 105 (in part).
Physarum flavieomum, Saco., Syll,, vii., 1, n. 1193 (in part).
Exsicc.—Rav,, Fung. Car., n. 76 (under tbe name of Physarum
ctiprieeps, B.).
Berkeley’s type specimen is a portion of the same gathering
issued in Ravenel’s Exs., quoted above, and possibly Berkeley
in sending Ravenel the name, wrote euprieeps instead of
cupripes; however this may be, it is certain that the two names
refer to the same species. The present species has been hopelessly
confused with others by Rostafinski.
The following note accompanied Ravenel’s specimen to
Berkeley.
“At first a yellowish-green mucus, spreading on tbe surface
12—18 in. square, interlaced with veins. On these veins small
clavate pedicels arise of the same colour, the heads becoming
thicker and assuming finally the subspherical form, changing
to lilac-blue.”
On dead wood. United States.
Gregarious, 2—2'5 mm. high.
Physarum nefroideum, Rost.
Sporangia longitudinally compressed, circular in outline, but
owing to the umbilicus at the base, reniform, minutely cinereo-
furfuraceous, scarcely 1 mm. broad; stem —1 mm. long,
cylindrical, slightly striate, hrown; columella almost obsolete;