CHONDRIODERMA.] 
PHYSARACE^. 
85 
13. C. floriforme Rost., Mon., p. 184 (1875). Plasmodium 
greyish-white. Total height 1 to 2 mm. Sporangia globose, 
stipitate, erect, smooth, crowded, 0-8 mm. diam., varying from 
white to ochraceoLis-brown; sporangium -wall splitting into several 
revolute petal-like lobes, ochraceous-brown on the inner side, 
cartilaginous, obscurely . granular, with an inseparable mem- 
branous inner layer. Stalk equal, furrowed, 0-5 to 1 mm. long, 
0-15 mm. thick, ochraceous-brown, rising from a strongly developed 
common hypothallus. Columella ovoid or hemispherical, brown, 
densely calcareous. Capillitium of slender, sparingly branching 
threads, with scattered bead-Hke thickenings, thicker and anasto- 
mosing at the base, dark violet-brown. Spores red violet-brown, 
with widely separated obtuse warts, 9 to 11 /a diam. — Cooke, Myx. 
Brit., p. 41 • Mass., Mon., p. 198; Macbride, in Bull. Nat. Hist. 
loAva, ii., p. 149. Sphcerocarpus floriformis Bull., Champ., p. 142, 
t. 371 (1791). Diderma floriforme Pers., in Rom., N. Mag. Bot., 
i., p. 89 (1794). Leangium florijorme Link, in Berlin Ges. Nat. Fr. 
Mag., iii.,p. 26; Rost., in Fuckel, Symb. Myc, Nachtr. 2, p. 73. 
P]ate XXXIV., B.— a. sporangia moist and unexpanded, x 20; 5. sporangia 
dry and expanded, x 20 ; c. capillitium and spores, x 280 ; d. spore, x 600 
(England) ; e. sporangia expanded and showing clavate columellEe, x 20 
(United States). 
The red-brown spores with scattered warts distinguish this species 
from all forms of C. radiatum. 
Hah. In crevices at the base of oak stumps, etc. — Epping Forest, 
Essex (L:B.M.64) ; Germany (B. M. 533) ; Ohio (L:B.M.64) ; Iowa 
(B. M. 817) ; S. Carolina (B. M. 925). 
14. C. Ho okeri Lister. Plasmodium? Sporangia subglobose, 
stipitate, erect, gregarious, 1 mm. diam., rufous with a slight 
iridescent lustre ; sporangium-wall of two layers, the outer car- 
tilaginous, purplish-brown, closely combined with the colourless 
inner layer. Stalk equal from a iDroader base, furrowed, 0*7 mm. 
high, purplish-brown, densely charged with lime. Columella 
cylindrical, obtuse, rugose with the expanded bases of the capilli- 
tium, 0*4 mm. high, 0*17 mm. thick, purplish-brown, densely 
charged with lime. Capillitium of lax branching and anastomosing 
threaxls, nearly equal in breadth throughout, 2 fx diam., colourless 
or pale violet. Spores dark purple-brown, spinose, 13 to 15 
diam. — Diderma Hookeri Berk., in Fl. Nov. Zel., p. 191 (1855). 
Lamproderma Hookeri Rost., Mon., App., p. 24. Diachcea 
Hookeri Mass., Mon., p. 260. 
Plate XXXV., A. — a. remains of sporangia, on fern frond, natural size ; 
b. stalk and columella, x 20; c. capillitium. wiih portion of columella, 
containing lime-granules, x 280 ; d. spore, x 600 (New Zealand). 
This ia represented by a single gathering, and appears to have been 
in imperfect preservation when first examined by Berkeley. Rostafinski 
writes that it was in an injured state when seen by him ; probably it 
was then in much the same condition as at the present time. The speci- 
men consists of a considerable number of sporangia on a frond of 
Hymenophijllum, but little remains beyond the stalks and columellaa 
