86 
ENDOSPOREiE. 
[CHONDRIODERMA. 
■with the bases of the sporangium-walls ; they had, apparently, been 
exposed to weather before gathering, as the tangle of capillitium, where 
any remains, is closely wound about the columella, as if from the effect 
of rain. From the structure of the sporangium-wall and capillitium 
Berkeley was clearly right in placing it as a Diderma. The substance 
of the outer layer is very similar to that of C. Sauteri, and there is a 
strong resemblance to that species in the large spinose spores and the 
pale, rather broad threads of the wavy capillitium ; it differs in the 
presence of the stalk and cylindrical columella, which contain dense 
deposits of lime extending for some distance into the hypothallus. 
Sab. On Hymenophyllum. — New Zealand (K. 1559, L:B.M.65 slide). 
15. C. lucidum Cooke, Myx. Brit., p. 42 (1877). Plasmodium? 
Sporangia subglobose, sessile or occasionally stipitate, scattered, 
0*7 mm. diam., bright reddish-yellow, shining, dehiscing in more 
or less petaloid lobes; sporangium-wall of two layers without 
deposits of lime, the outer cartilaginous, closely colnbined with 
the membranous inner layer. Stalk very short, 1 mm. high, in 
one instance 3 mm. high, brown, slender. Columella irregularly 
globose, 0'35 mm. diam., seated on a narrow stalk, rugose and 
pitted, ochraceous. Capillitium not abundant, of ii'regular purple- 
brown threads 2 to 5 /a diam., branching and anastomosing, with 
wide expansions at the axils. Spores dark purple-brovm, closely 
spinulose, 12 to 14 /x, diam. — Mass., Mon.. p. 204. Diderma lucidum 
Berk. & Br., in Ann. Mag. Nat. Hist., 'ser. 3, vii., p. 380 (1861). 
Chondrioderma Garmichcelianum, Mass., Mon., p. 202 (in part). 
Plate XXXV., A. — e. sporangia, x 20 ; /. broken sporangium showing 
stalked columella, from mounting in glycerine, x 20 ; g. capillitium and 
spores, X 280 ; h. spore, x 600 (Trefriw, Wales). 
In Berkeley's description of this species {I.e.') two localities are given : 
Trefriw, Wales, and Cumberland. Examples of the former gathering 
are met with in Broome's coll. (B. M. 25), named '^'■Diderma lucidum,^' and 
in Berkeley's collection at Kew, named " Diderma Carmichaelianum, 
ex Herb. Broome " (K. 353). From the irregular character of the 
capillitium, and the absence of lime-deposits in the sporangium-wall 
and columella, it is possible that this is not a normal development, but 
an unusual form of some other known species. 
Eah. On moss.— Trefriw, Wales (B. M. 25). 
SPECIES NOT MET WITH IN THE QUOTED COLLECTIONS. 
16. C. fallax Rest., Mon., p. 171 (1875). Sporangia seated on 
a common hypothallus, crowded, but not closely compacted, 
sessile, globose, chalk- white ; columella either small flattened or 
distinct ovate ; capillitium fasciculate below, becoming very 
diffuse above, dull violet ; spores dull violet, strongly spinulose, 
12 to 14 jx diam. 
Hah. Near Salzburg, Tyrol (Sauter). 
May not this be a form of C. glohosumf 
17. C. anomalum Host., Mon., p. 169. Plasmodiocarps venulose, 
creeping, very convex, variously contorted, superficially minutely 
