106 
ENDOSPOREiE. 
[lepidodeema. 
The specimen from Ceylon, named by Berkeley Didymium leon'mvm 
(K. 1664), which is given by Rostafinski as a synonym for 
L. tigrinum (Mon., App., p. 23), is immature, the capillitium and 
spores being undeveloped ; the deposits of lime on the cartilaginous, 
orange sporangium-wall are in the form of large stellate crystals ; 
those in the spongy tissue of the columella are in rounded masses as 
in typical L. tignmim. The type specimens of L.fulvum Mass., from 
Scarboro' ('Herb. Mass.), and from Belle Croix, France (K. 1655 ; 
Paris Herb.), are immature specimens of L. tigrinum; the spores appear 
warted under a high magnifying power, though the warts are faint 
from their unripe condition ; the French specimen is part of the 
large gathering by Roussel, given as a type of L. tigrinum by 
Rostafinski (Mon., p. 188). Growing with stalked specimens of 
L. tigrinum, Prof. Farlow has twice found, in Massachusetts, sporangia 
of a sessile, depressed form, with capillitium and spores exactly as in 
the type, but with the sporangium-wall of two layers, the outer 
delicate, ochraceous, densely charged with irregular granules of lime, 
separating more or less from the inner layer, which is yellow and 
membranous above, orange and cartilaginous towards the base ; the 
columella is small and depressed. Taken by itself this form would be 
a Cliondrioclerma, but considering its association with sporangia of 
i. tigrinum, from which it differs only in shape, and the granular, not 
crystalline, condition of the lime on the sporangium- wall, it appears 
that it is a form of this species. 
Hah. On bark, moss, etc. — Leighton, Beds (L:B.M.80); Inverary, 
Scotland (K. 668) ; France (K. 1556) ; Denmark (K. 1667) ; Germany 
and Italy (Strassburg) ; Ceylon (K. 1664) ; Mass., U.S.A. (L:B.M.80) ; 
S. Carolina (Paris). 
2. L. Carestianum Eost., Men., p. 188 (1875). Plasmodium? 
Sporangia forming elongate, pulvinate plasmodiocarps, 10 to 
15 mm. long, 1 mm. thick, brovt^nish-grey, closely beset with 
white crystalline scales of lime; sporangium -wall cartilaginous, 
dark brown. Columella hardly evident, represented by the 
thickened dark brown base of the sporangium-wall, enclosing 
rounded nodules of lime. Capillitium of colourless, and pale- 
brown, branching and anastomosing threads, 2 jx thick. Spores 
dark purplish-grey, minutely spinulose, 12 to 18 /a diam. — Mass., 
Mon., p. 255. Reticularia Carestiana Rabenh., Fung. Eur., 
No. 436 (1862). 
Plate XLT., B.— e. part of plasmodiocarp, x 20 ; /. capillitium and 
spores, X 280 (Italy). 
This species appears to be represented by a single gathering, and 
would seem to be a plasmodiocarp form of L. tigrinum. 
Hah. On twigs.— Carestia, North Italy (B. M. 678). 
The type specimen of Didymium granuliferum Phillips (Badhamia 
(jranulifera Mass., Mon., p. 321) from Dr. Harkness, Blue Canon, 
California (L:B.M.78), has the sporangia subglobose or extended, 
somewhat depressed, sessile on a broad base, 2 to 3 mm. long, gre- 
garious on an effused hypothallus, which, together with the sporangia, 
is pale brown, and thickly studded with crystalline scales; the 
sporangium-wall is of two layers, the outer cartilaginous, pale-brown, 
with deposits of lime in the form of closely set, angular, crystalline 
