398 
HANDBOOK OF 
2047. Arcyria incarnata. Peru. Itostfi. Mon. 275. Mass. 
Mon. 145.=Arcyria adnata. Sacc. Syll. v n., 1461. 
Sporangia in the type ovate, with an evanescent, short, erect 
stem, crowded in clusters ; mass of spores and capillitinm usually 
flesh-colour, more rarely rosy or umber, exceptionally ochre or 
carmine-brown ; net of the capillitinm composed of cylindrical 
tubes 4 p diam. ; thickenings in the form of a border of half rings 
or spines, or half rings standing in rank, more sharp pointed than 
stout; spores smooth, 6-7^ /a diam. 
On rotten wood. Queensland. W. Australia. 
2048. Arcyria nutans. Bull. Iitfki. Mon. 277. Sacc. 
Syll. 1464. Mass. Mon. 150. 
Sporangia cylindrical in the typical form, with a short, disappear- 
ing stem, so as to be seemingly sessile ; capillitinm much relaxed, 
diooping ; mass of spores and capillitium of a dull yellow colour, 
resembling that of chamois leather, or more rarely brownish- 
yellow ; tubes of the net of the capillitium when fully developed of 
variable width, 3-4 p diam. ; thickenings in the form of 
spines cover the thick tubes, amongst which others are met with, 
dispersed without order, having rings or half rings ; spores 7f-8£ 
p diam. 
On rotten wood. W. Australia. Queensland. Victoria. 
2049. Arcyria cinerea. Bull. Iitfki, Mon. 272, figs. 182- 
185, 193,= Arcyria pomiformis. Host. Mon. 271. Sacc. 
Syll. 1458. Mass. Mon. 151. 
Sporangia ovate, globose, or elongated-ovate, with an even, long, 
erect, straight stem ; mass of capillitium and spores usually bright- 
grey, more rarely greyish flesh-colour, greyish-yellow, straw-colour, 
or dull yellow ; tubes of capillitium developed in the interior, and 
on the outside of variable width, with variable thickenings. 
Thickenings of the inner and outer not equally spiny, but those of 
the interior warty, aud the external very spinulose ; spores 7-9 p 
diam., smooth. 
On stumps. Queensland. 
*'* Hemiarcyria. Threads with continuous spirals. 
2050. Arcyria rubiformis. M ass. Mon. 15 8.= Hemiarcyria 
rubiformis. Peis. Iitfki. Mon. 262, figs. 201, 230, 231. 
Sacc. Syll. 1512. 
Sporangia usually fasciculate, collected in a short coalescing 
stem, often of a beautiful metallic lustre ; mass of spores and net 
of c-laters brownish-red ; tubes of the elaters 4-5 p, very 
rarely branching, but not with numerous arms, which terminate in 
free ends, either not distinctly narrowed, smooth, or swollen, and 
then provided with a short spine, or more rarely obtuse ; spirals 
two to four, usually three, flat, when matured armed with numerous 
spines, separated by depressions twice as broad as the spirals ; 
spores 10-11 p diam., with a stout but smooth membrane. 
On dead wood. Tasmania. 
