CHONDRIODERM A. ] 
PHYSARACEiE. 
83 
Hah. On dead leaves, moss, etc.— Herb. Bloxam (Leicester?) (B. M. 
26) ; Jedburgh, Scotland (K. 1477) ; Northumberland (Edin. Herb., 
ex Herb. Grev. ; K. 1478, ex Herb. Sowerby). 
10. C. Sauteri Eost., Mon., p. 181 (1875). Plasmodium? 
Sporangia subglobose, d-epressed, sessile, somewhat aggregated, 
0-7 to 1 mm. diam., smooth, pale pinkish-brown ; sporangium- 
wall of two layers, the outer cartilaginous, thin, brittle, shining, 
more or less charged with innate lime-granules, separating from 
the membranous inner layer. Columella hardly evident, a rugose 
thickening of the base of the sporangium ; reddish-brown. 
Capillitium not very abundant, of sparingly branched colourless 
or pale violet threads, 2 to 4 /x broad, persistent at the base. 
Spores dark violet-brown, spinulose, 10 to 13 /a diam. — Mass., Mon., 
p. 217. C. aculeatum Rex, in Proc. Acad. N. Sc. Phil. 1891, p. 390. 
Plate XXXIII., A. — a. sporangia, x 20 ; J. capillitium, with fragments of 
sporangium-wall, x 280 ; c. spore, x 600 (Salzburg, Tyrol). 
The specimen in the Strassburg collection named previously 
" Diclerma deplanatum, ex. Herb. Sauter, ad muscos in montibus Salz." 
appears to be the type given by Rostafinski (Mon., p. 181), and is well 
described as " of cofEee-and-milk colour, the outer wall brittle, separat- 
ing from the inner, which is membranous and colourless." The species 
described by Dr. Rex as C. aculeatum (I.e.) (L:B.M.61) is identical in 
all its characters with C. Sauteri. The specimen in Greville's coll. 
in the Edinburgh Herb, named ^'■Diclerma? Appin. Carm." is the 
same form and probably part of the same gathering as K. 403, named 
" Diderma melaleucum Carm.," with a descriptive note stating that it was 
gathered in Scotland by Capt. Oarmichael. It differs from the 
Salzburg and American gatherings in the rather darker and larger 
sporangia, and in the broader, almost simple threads of the more 
scanty capillitium, but it appears to be the same species. 
Hah. On dead wood, moss, etc. — Appin, Scotland (K. 403) ; Salzburg, 
Tyrol (Strassb. Herb.) ; Philadelphia (L:B.M.61). 
11. C. radiatum Rest., Mon., p. 182, figs. 152, 155, 156, 170 
(1875). Plasmodium pale yellow, among dead fir and oak leaves, 
and stripped bark. Total height 0-7 to 1 mm. Sporangia sub- 
globose, flattened or umbilicate beneath, stalked or sessile, smooth 
or somewhat wrinkled and rimose, 0-7 to 1'2 mm. diam., pale grey 
or brownish or red-brown, crowded or scattered ; sporangium-wall 
brealdng irregularly above, occasionally dehiscing from the naked 
globose mass of spores in re volute lobes, cartilaginous, obscurely 
granular, with a membranous inseparable inner layer. Stalk 
short, 0-2 to 0-5 mm. high, thick, yellowish-brown, charged 
throughout with white lime-deposits. Columella hemispherical 
or subglobose, 0-5 mm. diam., densely calcareous. Capillitium 
abundant, dark violet-brown, radiating from the columella in 
somewhat rigid threads, sparingly branched except at the colour- 
less extremities, usually roughened with minute wart-like thicken- 
ings ; rarely pale, delicate, and flexuose. Spores dark violet-brown, 
closely and minutely spinulose, 9 to 12 diam.— Cooke, Myx. Brit., 
p. 40 ; Blytt, Bidr. Norg., Sop. iii. (1892), p. 6 • Mass., Mon. 
