LAMPRODERMA.] 
STEMONITACE/E. 
131 
L. jjhysaroides, which it very closely resembles, in the shape of 
the columella, and the smaller size and less strong warting of the 
spores. 
Hob. Alsace (Schimper). 
The characters above given are frequently met with in typical 
developments of L. i^hysaroicles. 
7. L. leucosporum Rost., Mon., App., p. 26. Sporangia globose, 
0'5 mm. diam., iridescent. Stalks black, shining, subulate, slender. 
Columella cylindrical, truncate. Capillitium dusky after the dis- 
persal of the spores ; composed of variously branching threads 
combined into a very dense network. Spores violet, smooth, 
8 to 9 yu, diam. — L. nigrescens Rost., Mon., p. 205. 
Hah. Eberbach, Germany (Fuckel) ; Paris (Roze). The specimen 
from Roze has colourless capillitium. 
This description applies to L. violaceum, 
8. L.Fuckeliamim Rost., in Fuckel, Symb., Nachtr., p. 69 (1873). 
Sporangia globose, almost sessile, 0'75 mm. diam., iridescent red, 
slightly umbilicate beneath. Stem short, inconspicuous, pene- 
trating the sporangium as a short conical columella. Capillitium 
loosely branching, combined into a network by transverse 
branchlets. Spores pale violet, marked with minute ridges uniting 
to form a reticulation, 8 to 9 u, diam. — Mon., p. 207, tab. xiii., 
fig. 6. 
Hab. On the twigs and leaves of oak. — Eberbach, Germany (Fuckel). 
9. L. minutum Rost., Mon., App., p. 26. Sporangia globose, 0-6 
mm. diam., somewhat iridescent. Stalks black, slender, cylindrical. 
Columella cylindrical, slender, truncate. Capillitium threads 
colourless, branching in a fasciculate manner; fascicles few. 
Spores violet, delicately verruculose, 6-6 fj, diam. 
Hab. Near Paris (Roze). 
This description applies to a form of L. irideum with pale 
capillitium. 
10. L. nigrescens Sacc, inMich., ii., p. 262 (non Rost.) Sporan- 
gia gregarious, stipitate, globose, not umbilicate, smooth, erect, at 
first yellowish, then opaque black. Stalks filiform, 0-5 mm. high, 
40 IX thick, black, with a small reddish hypothallus. CohTmella 
cylindrical, reaching half the height of the sporangium, giving 
rise at the obtuse apex to the radiating, dichotomously branching, 
filiform, dusky threads of the capillitium. Spores dull violet, very 
minutely echinulate, 9 to 10 /x diam.— Z. Saccardianum Mass., 
Mon., p. 101. 
Hub. On heaps of dead leaves and twigs.— N. Italy. 
From the size of the spores it is probable that this is a minute form 
or Li. violaceum. 
ILL. Ellisiana Cooke, in Ann. Lyc. Njit. Hist. N. York, xi., 
p d97. Sporangia globose, stipitate, minutely ruguloso, bl.'ickish- 
