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a dense,irregular network,protruded elastically; threads equally
cmercA in every part with short, variously curved, and frequently
anastomosing, slightly raised lands; sometimes a more or less
perfect ring occurs; spores globose, smooth, 8— 10 g diameter.
Arcyria versicolor, Phillips, in herb.
Areyria versicolor, Phill,, Grev., v., p. 115, t. 88, f. 8, a e,
Sacc., Syll., vii., 1, n. 1473.
Arcyria vitellina, Phill., Grev., v., p. 115, t. 88, f. 7, a e ;
Saoc., Syll., n. 1474.
On trunks. California.
A beautiful species, 3—3'5 mm. high. Variable in colour,
but constant in all important characters. I am indebted to
Mr. Phillips for an opportunity of examining the type specimens.
Arcyria nutans, Rost. (figs. 140, 141).
Sporangia cylindrical, sometimes ovate, very shortly stipitate,
wall dingy yellow; stem same colour, filled with large cells;
capillitium and mass of spores pale opaque yellow; eapillitium
elastically protruded, elongated, drooping, threads combined to
form a dense, irregular network, thickenings in the form of
prominent half-rings, often with projecting spines arranged in
a diffuse spiral, the remainder covered with a fine, irregular lut-
woi’h ; spores globose, pale yellow, smooth, 7—8 g diameter.
Areyria nutans, Rost., Mon., p. 277; Cke., Myx. Brit., p. 72.
Exsicc.—Fuckel, Fung. Rhen., n. 1439.
On rotten wood and hark. Britain (Kew, Scarboro’, Carlisle);
Europe; United States.
Scattered or gregarious, 1'3—2 mm. high. Somewhat resembling
A. cinerea, hdt distinguished by the short stem, the
elastically protruded, very long, drooping capillitium, which is
usually the colour of ground ginger, but sometimes tinged with
brown, and more especially by the portion of the capillitium
threads not occupied by the half-rings being ornamented with
a fine network of slightly raised lines.
(Rostafinski’s Synonyms.)
Clathroides flaveseens, Mich., p. 214 (1729).
Clathroides longissimum. Hall, p. 10 (1742).
Clathrus ramosus, p. Retz. Vet. Handl., 25.3 (1769).
Trichia nutans, Bull., t. 502, f. 3 (1798) ; Sow., t. 260.
Stemonitis nutans, Gmel, Sys., 1467 (1791).
Arcyria flava, Pers. Obs., i„ 85 (1796) ; Grev., t. 309.
Stcmonites amaena, Trent., p. 222 (1797).
Trichia elongata, Schum. Saell, 1464 (1803).
Areyria alutacca, Schum. Saell, 1474 (1803).
Arcyria nutans, Grev. FL Ed., p. 455 (1824); Eng. FI, v„
319 ; Cooke, Hdbk., No. 1173.
Arcyria pallcns, Wallr. in litt.
Arcyria straminea, Wallr. Crypt. Germ., 2232 (1833).
Arcyria nutans, c, minor. Bong., in Weinm. p. 609 (1836).
Arcyria ciñera, Mass. (figs. 137—139, and 248, 249).
Sporangia varying from globose to cylindrical, stipitate,
simple or digitato-fasciculate on a common stem, wall thm,
smooth, grey, or yellowish, cup-like base persistent after dehiscence
; stem slender, about equal in length to sporangium oi
longer, straight, colour of sporangium, filled with large cells
that become smaller upwards; mass of capillitium and spores
yellowish-grey or grey; capillitium àen,e, protruding d a s tic a ^
and remaining erect, threads combined to form an iiie^n
network, variable in thickness, often smooth or minutely warted
towards the base, the remainder equally covered with close-set
short spines, or half-rings or spines arranged in a diffuse sp.ial,
spores globose, smooth, rarely minutely granular, 7 - 9 ff
Arcyria cinerea, Rost., Mon., p. 272, figs. 182 -1 8 ^ . 193,
C o o k e , Myx. Brit, p. 71. figs. 1 8 2 -1 8 5 , 193; Saoc., Syll, vii.,
1 n 1459
’ Arcyria poviiformis, Rost., Mon., p. 271 ; Cke., Myx. Bnt.,
p. 70.
Arcyria strida, Rost., Mon. Supp., p. 71.