396 
HANDBOOK OF 
2042. Perichsena applanata. G. # M. Mass. Mon. p. 116. 
=Hemiarcyria applanata. Che. <J- Mass. Grev. xvi., 20. 
Sacc. Syll. vn., 1515. 
Sessile, adnate on a broad base, much depressed, circular in out- 
line or iethalioid and irregular, dehiscing in an irregularly circurn- 
scissile manner ; wall with a dense layer of granules of lime on its 
inner surface, bright blue-grey ; mass of capillitium and spores 
clear orange-yellow ; capillitium rather scanty, forming a loose net ; 
threads 3-5 p diam., sometimes notched or with scattered rudi- 
mentary spinules ; spores globose, minutely warted, 11-12 p diam. 
On rotting Ct/cas. Queensland. (Fig. 349.) 
Genus 7. LYCQGA'LA. Mich. 
More or less rounded, variously coloured mthalia, joined together 
intricately into an obtuse vein-like, naked plasmodiocarp ; outer 
part of the combination formed into a double cortex, covered on 
the outside with coloured cells ; tubes of the capillitium originat- 
ing in the inner stratum of the cortex, penetrating in numerous 
places its inner wall, branching within the body of the Eethalium, 
and formed into a loose net in which many arms run out in free, 
blunt ends. 
2043. Lycogala epidendrum. Bux. Rtfki. Mon. 285, Jig. 
1, 7 to 12. Sacc. Syll. 1484. 
.^Ethalium roundish, sociable, large as a pea, shining, surface 
distinctly warted, rose-colour, but commonly dull-brown with a 
shade of red ; mass of spores and capillitium very variably coloured, 
violet-red, purple, rosy, dull clay-colour, greenish clay-colour, or 
almost greyish ; thickenings of the tubes of the capillitium only 
distinct in the young state, when dry the surface only exhibits 
irregular wrinkles ; spores very small, smooth, 3^-5| p diam. 
On stumps. W. Australia. Queensland. Yictoria. (Fig. 350.) 
Family XVI. TK.ICHIACE.ffi. 
Capillitium either of simple threads with both ends attenuated, 
or combined into a net, with thin-sided walls, provided with serpen- 
tine thickenings; wall of sporangium, capillitium, and spores 
usually of the same colour in the same sporangium, mostly olive or 
brownish. 
Genus 8. PROTOTRICHIA. Rost. 
Sporangia simple or fasciculate, stipitate or sessile, thin, reflecting 
metallic tints, dehiscing irregularly ; capillitium well-developed, 
elaters attached by one end to the basal portion of the sporangium, 
becoming attenuated upwards and dividing into a variable number 
of slender, tapering free tips, the slender branchlets are sometimes 
more or less connected laterally, elaters furnished with spirals, 
irregular rings, or entirely smooth. — Mass. Mon. 126. 
2044. Prototrichia metallica. Mass. Mon. 127.— Trichia 
metallica, B. Br. FI. Tasm. 268. 
Sporangia scattered, stipitate or sessile, on a broad base, 
spherical or depressed, and lenticular, smooth, shining, copper- 
