LICEA.] 
LICEACEiE. 
151 
3. L. pusilla Schracl, Nov. Gen. PI., p. 19 (1797). Plasmodium? 
Sporangia hemispherical or pulvinate, scattered, 0-6 to 1 mm. diam., 
dark brown, glossy, dehiscing in lobes ; sporangium-wall cartila- 
ginous, oUve-brown, the margin of the lobes dotted with minute 
granules, 1 to 2 diam. Spores olive-brown, smooth, 16 to 20 
fji diam— Protoderma pusilla Eost., Mon., p. 90. Frotodermium 
pusillum Berl., in Sacc, SylL, vii., p. 328 ; Mass., Mon., p. 43. 
Plate LVII., B — fl. sporangia, x 20 ; b. fragment of sporangium-wall, and 
spores, X 280 ; c. spore, x UOO (Scotland). 
This species was separated by Eostafinski from Licea, and placed in 
the division Amaurosporea as the type of a new genus Protoderma, 
on account of the colour of the spores. The examination of several 
specimens in Strassb. Herb, and British Museum shows that the colour 
of the spores is essentially olive-brown ; Schrader's original place for 
the species is therefore retained. 
ffab. On dead wood. — Glamis, Scotland (B. M. 100) ; Kiel, Germany 
(Strassb. Herb.). 
SPECIES NOT MET WITH IN THE QUOTED COLLECTIONS. 
4. L. variabilis Schrad., Nov. Gen. PL, p. 18, pi. 6, figs. 5, 6. 
Sporangia scattered, depressed, reddish-brown, hemispherical, 
ovate, oblong or iiexuose, of varying shape and size ; sporangium- 
wall thin, dehiscing above, composed of a double membrane, the 
outer rough, the inner smooth, shining; spores dull yellow. 
Hab. On pine-wood, rarely on beech. 
The description and figures suggest that this species was a form of 
Perichana populina Fr., with scanty or no capiUitium. 
5. L, brunnea Preuss, Linnea, xxvi., p. 709 (1853). Sporangia 
gregarious, globose, subdepressed, ochraceous-brown j the wall 
parchment-like, breaking irregularly, evanescent above ; spores 
minute, ochraceous, conglobate ; capillitium none. 
Hah. On pine-wood. — Hoyerswerda, Silesia. 
This brief description probably refers to Crihraria argillacea Pers. 
6. L. incarnata Preuss, I.e. (1853). Sporangia minnte, flesh- 
coloured, smooth, round, somewhat depressed; spores flesh-coloured, 
globose. 
Hah. On dried tincture of rhubarb.— Hoyerswerda, Silesia. 
This description is too imperfect to be of value. 
7. L. antarctica Speg.,inBoletin Acad.Nac. Cienc.Cord. Arg., xi., 
p. 5. Sporangia in groups of from 5 to 20, rarely solitary, sessile, 
obovate, 0-5 to 0-7 mm. diam., smoke-brown, glabrous, smooth ; 
wall simple, brown, rugulose ; capillitium very scanty of slender, 
scarcely branching, papillose tubes, 1 /a thick, dull yellow-brown ; 
spores globose, closely and minutely warted, rosy-fulvous. 
Ilah. On dead trunks of Fagus antarctica. 
The description suggests a form of Perichcena populina Fr. 
