H
■Ji
§ § Spores with raised hands comhined to form a ncticorh.
Areyria chrysospora, Mass. (figs. 268, 269).
Sporangia sessile on a broad base, generally closely aggregated,
bright ochraoeons yellow ; mass of capillitinm and spores
yellow ; threads 5 g thick, forming a loose net with many free
ends, which generally terminate in slightly expanded, smooth,
bent or straight conical apices, spirals four, rather close, not
prcnninent, connected hy less prominent ridges running parallel to
the long axis of the thread; spores globose, with raised flat hands
forming a polygonal network, 16 /i diameter.
Hemiarcyria chrysosptora. Lister, Grev., vol. v., p. 126 ; Mass.,
Rev. Trich., p. 357, fig. 37-
On larch twigs lying on the ground and on the surrounding
herbage. Lyme Regis.
A fine species with the sporangia reaching to 1 mm. diameter,
approaching in habit and general structure the form scssilis of
Arcyria serpula, hut quite distinct in the lai-ger spores, the
thinner capillitinm threads without spines, and having the
spirals connected by ridges parallel to the axis of the elaters.
From three to five polygons on a hemisphere of the spore.
Arcyria serpula, Mass. (figs. 273, 274a),
Either a vein-like, creeping plasmodiocarp, usually anastomosing
to form a net, or suhglobose, scattered, and sessile on
a broad base, wall thin, fragile, yellow, sometimes tinged brown ;
mass of spores and capillitium yellow or orange ; threads of the
dense capillitmm 5— 6 g thick, forming a net with numerous
free ends which usually terminate in a smooth, thin, tapering
spine 8—10 g long, spirals thin, not prominent, rather distant,
furnished with numérotes long, slender spinules; spores globose,
with narroto, raised flat hands forming an irregulccr network,
10— 12 g diameter.
a. plasmodiocarpa. Plasmodiocarp vein-like, usually forming
a network.
|9. sessilis. Sporangia sessile on a broad base, scattered or
gregarious, capillitium orange, elastic.
Hemiarcyria serpula, Rost., Mon., p. 267, figs. 200, 227, 228
Cooke, Myx. Brit., p. 68, figs. 200, 227, 228; Schroeter, p. 115
Saoc., Syll., vii., pt. I., n. 1514 ; Raunk., Myx. Dan., p. 64, t. 3,
f. 16 ; Mass., Rev. Trich., p. 357, f. 34.
Exsicc.—Fuckel, Fung. Rhen., 2692 (as Hemitrichia contorta
(Ditm.) Rost.).
On rotten wood, branches, leaves, &o. Britain (Carlisle ;
specimen in Herb. Berk., from Sowerby’s herbarium, no locality,
called Trichia reticulata, undoubtedly British) ; Germany ;
Sweden; Belgium; Italy; United States; Cuba; St. Vincent;
Bombay; N. W. Australia; New Zealand ; Ceylon.
Distinguished amongst the clear yellow species by the very
spiny elaters and the reticulate spores. The suhglobose sessile
form has not, so far as I am aware, been met with in Britain,
but, although differing in habit and in the bright orange elastic
capillitium, agrees in the structure of the elaters and the spores.
The type of the form scssilis is in the herbarium of the Paris
Museum, and was collected in Cuba.
(Rostafinski’s Synonyms.)
Mucor serpula. Scop. FI. Cam., t. 65 (1772).
Lycoperdon lumbriealc, Batsch., f. 174 (1786).
Trichia spongioides, Vill. FI. Dauph., 1061 (1789).
Stemonitis lumbricalis, Gmel. Sys., 1470 (1791).
Trichia reticulata, Pers. Disp., 10 (1797) ; lo. and Desc., 1. 12, f, 1
Trichia serpuh,, Pers. Disp., 10 (1797); Eng. FI., v., 320;
Cooke, Hdbk., 1189.
Trichia serpula, /3 spongioides, Pers. Syn., 181 (1801).
Trichia venosa, Schum. Saell., 1456 (1803).
Hyporhamma rctmdatnm, Corda Ic., v., 34 (1842).
Trichia retiformis, Payer. Crypt., f. 574 (1850).
Arcyria clavata, Mass. (fig. 124).
Sporangia varying from clavate to globose, yellotoish, polished,