138 
ENDOSPOTlEiE. 
[CRIBRARTA. 
e^tisa Mass., Mon., p. 41. Licea spermoides Berk. & Curt., in 
Grev., ii., p. 68. Tahulina sjjernioides Mass., Mon., p. 37. 
Fhi/sarum ccesjntosum Peck, in Kep. N. York Mus., xxvi., 
p. 75. rerichcnna ccespitosa Peck, in Rep. N. York Mus., x>.xi., 
p. 57. Ihobulina ccespitosa Mass., Mon., p. 43. 
a. genuina : sporangia combined into an ajthaliura. 
3. simplex Rex : sporangia shortly cylindrical, closely com- 
pacted, sessile, rarely free and stalked. 
Plate LI., B. — a. vertical section of part of a pulvinate ajthalium, x 9 ; 
i, fragment of sporangium-wall and spores, x 280 ; c. closely comjjacted 
tubvdar sporangia, f3. sini])lex, x 9 ; d. sessile and stalked sporangia, j3. 
sim2)lex, closely allied to Cribraria argillaeca, x 9 ; fragment of spo- 
rangium-wall, and spores of same, x 280 ; /, spore, x 600 (United States). 
The form j3. simplex has hitherto been recorded only from the 
United States, and has been described by Dr. Rex (/.c), where he gives 
a full account of the genus Lindhladia and of the relationship which 
exists between L. effusa and Cribraria argillacea. His gatherings show 
a complete series of intermediate forms between the two species. 
Licea spermoides Berk. & Curt, is var. simplex of Rex ; it is repre- 
sented by several specimens in the Kew Collection, including the type 
from Alabama referred to by Rostafinski in his App., p. 32, and given 
by him as a synonym for Cribraria argillacea (K. 1695) ; the spo- 
rangium-wall is bestrewn with dark plasmodic granules, but there is no 
indication of a net to warrant its being placed under C. argillacea. 
Hab. On dead wood, etc. — a. Bulmer, Yorks (L:B.M.103); a. Aboyne, 
Scotland (B. M. 244) ; a. Sweden (K. 1658) ; a. and /3. Philadelphia 
(L:B.M.103) ; /S. Iowa (B. M. 822) ; ^. S. Carolina (B. M. 948). 
Genus 23.— CRIBRAIIIA Persoon, in Romer, Neues Mag. Bot., 
i., p. 91 (1794). Sporangia globose or subpyriform, stipitate; 
sporangium-wall persistent, and forming a cup in the lower half, 
or reduced to a basal disc, continued above in a net of slender 
threads more or less expanded and thickened at the nodes ; the 
wall membranous and evanescent in the meshes of the net. 
KEY TO THE SPECIES OF CRIBRARIA. 
A. Nodes of the net not expanded : — 
A. Sporangia clay-coloured, cup imperfectly defined, spo- 
Tungium-wall subpersistent above. 1. C. argillacea 
B. Sporangia crimson. 2. G. ruhiginosa 
c. Sporangia rufous or nut-brown, cup well-defined or 
obsolete — 
Sporangia 0 6 mm. diam. 3. C. rufesceiis 
Sporangia O'l to 0'2 mm. diam. 4. C. minutissima 
