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to the wall of the sporangium, dusky or almost colourless;
spores globose, minutely verruculose, lilac, 7—9 g diameter.
Diaehaea leucopoda, Rost., Mon., p. 190, f. 178; Cooke, Myx.
Brit., p. 44, f. 178; Sacc., Syll., n. 1335.
Exsicc.—&ah., Fung. Eur., 434 and 1071; Roum., Fung.
Gall., 3174; Klotzsch (Rab.), Herb. Myc., 36; Syd., Myc. March.,
1900; Rav., Fung. Car., 80; Desm., Cr. Fr., Faso, ii., 261;
Fckl, Fung. Rhen., 1451; Westendorp, Crypt. Belg., 1260.
On leaves, twigs, &c. Britain (King’s Cliffe, Carlisle, Linlithgow)
; France; Germany; Belgium; United States ; Cuba;
Brazil; S. Africa; In d ia ; E. Austraba.
Varying from 1'5—2 mm. high, characterized by the white,
acutely conical stem, and smooth spores not produced in
clusters.
(Rostafinski’s Synonyms.)
Trichia leucopoda, Bull., t. 502, f. 2 (1791).
Stemonitis elegans, Trent., in Both., Cat., 220 (1797).
Stemonitis leueoslyla, Pers., Syn., 186 (1801).
Stemonitis leucopoda, D. 0., FL Fr., ii., 257 (1805).
Diachaea elegans, Fr., Stirp. Femsj., p. 84 (1825); Fr., S. M.,
iii., 156; Berk., Ann. N. H., n. 112; Cooke, Hdbk,,
n. 1154, f. 131.
DiaDiaea leucopoda, Rost., Mon., p. 190 (1875),
Var. cylindrica, Mass.
Sporangium cylindrical, elongated, stem cylindrical.
Exsiee.—Ellis, N. Amer. Fung., 336.
On pine wood lying on the ground. United States.
Differs from the type form in its larger size, 2'5—3 mm.
high; the longer cylindrical stem, and elongated, cylindrical
sporangium.
Diachaea Hookeri, Mass.
Spoi-angia spherical, slightly flattened or umbilicate below,
wall thin, pale ochraceous or with a flesh tinge, slightly iridescent,
with minute granules in detached patches on the inside; stem
Diachaea. 261
about equal to sporangium, stout, expanded at the base into
a circular hypothallus, longitudinally rugulose, colour of sporangium
; columella pale, cylindrical, ahmct half the height of the
sporangium,, containing irregular masses of lime; threads of
capillitium springing from the columella, irregularly branching
and anastomosing to form a dense net, attached by its ultimate
branches to the wall of tbe sporangium, threads 3—4 g broad
near tbe columella, flattened, tapering, pale dirty lilac to
colourless; spores globose, minutely warted, brownisb lilac,
11—14 g diameter.
Diderma Hooheri, Berk., FL, New Zealand, p. 191 T CV
f. 12.
Lamproderma Hooheri, Rost., Mon. Append., p. 24.
(Type in Herb., Kew.)
Gregarious on living fronds of Hymenophyllum. New Zealand.
A true Diachaea, as the genus is at present defined, and well
marked by the pale coloured globose sporangium, and the large
spores.
(Rostafinski’s Synonym.)
Diderma Hooheri, Berk., FL, New Zeal, p. 191, T. CV,, f. 12.
Sub-Gen. Hemidiachaca.
Columella short or obsolete, and represented by a few lime
granules at base of sporangium.
B. Spores u'ith irregular, raised hands.
Diachaea splendens. Peck (figs. 37, 38).
Sporangia spherico-depressed and umbilicate beloio, or reniform,
solitary or fasciculate on a common stem, deep peacock-blue
or purple, iridescent; stem equal to or shorter than sporangium,
white, expanding into a vague hypothallus; columella white,
cylindrical or reniform, containing lime; capillitium dense,
threads brown, anastomosing to form a network extending from
the columella to the sporangial wall; spores globose, purple