160 
ENDOSPORE/K, 
[llETICULARIA. 
oval or spherical clusters of 5 to 25, warted on the exposed 
surface, elsewhere smooth, 11 to 12 fx. 
Hub. On fir wood. — Denmark. 
This appears to be a form of E. olivaceum intermediate between the 
usual type and the simple type from Glen Tanner referred to under 
Licea fiexuosa. 
4. E. macrospema Eaunk., I.e., is described as similar to E. 
olivaceum, but the spores are spinulose on the outer surface and 
12 to 14 yu, diam. 
Hab. On fir. — Denmark. 
It is very doubtful if the slightly larger size and more spinulose 
raarkings of the spores is a sufficient character on which to base specific 
difference. 
Genus 32.— RETICULARIA Bulliard, Champ., p. 95 (1791). 
^thalium composed of numerous elongated interwoven sporangia, 
with their walls partly evanescent, partly persistent, forming 
chambers and strands, and di^dding above into delicate capillitium- 
like threads ; spores and threads rusty-brown. 
KEY TO THE SPECIES OF RETICULARIA. 
Spores minutely reticulated. 1. R. Lycoperdon 
Spores coarsely reticulated. • 2. R. lobata 
1. R. Lycoperdon Bull., I.e., t. 446, f. 4 (1791). Plasmodium 
creamy-white, on dead wood, ^thalium pulvinate or subglobose, 
2 to 6 cm. diam., enclosed in a thin smooth silvery cortex, seated 
on a well-developed hypothallus of interwoven membranous strands. 
Capillitium consisting of the persistent remains of the sporangium- 
walls, forming irregular chambered and branching strands 
arising from the hypothallus, dividing above into numerous 
delicate flattened and flexuose threads ; together with the spores 
pale rusty-brown. Spores somewhat turbinate, thickened and 
closely reticulated on the rounded side, the remaining part 
marked with scattered warts, 6 to 8 /x, diam. — Post., Mon., 
p. 240; Cooke, Myx. Brit., p. 60; Blytt, Bidr. K. Norg., Sop. 
iii. (1892), p. 10 ; Mass., Mon., p. 93. Reticularia umbriiia 
Er., Syst. Myc, iii., p. 87. R. argentea Corda, Ic. Fung, vi., p. 15. 
Plate LIX., B. — a. asthalium, half natural size ; h. capillitium, x 80 ; 
c. spores, x 600 (England). 
In eethalia developed in a moist atmosphere under a glass shade the 
silvery cortex formed by the drying of the outer ends of the sporangia 
is not produced, but the convolute sporangia are filled with spores 
to their apices, which gives an irregular brain-like surface to the 
a;thalium. lu some gatherings the walls of the sporangia are much 
moie persistent than in others, and have almost the character of 
Enteridium, to which genus Reticularia is closely allied. 
Uab. On dead wood.— Bristol (B. M. 18) ; Leytonstone, Essex 
(L:B.M.131) ; Germany (Strassb. Herb, and B. M. 649) ; Sweden 
(K. 977). 
