102 ENDOSPORE^E. [DIDYMIUM. 



SPECIES NOT MET WITH IN THE QUOTED COLLECTIONS. 



9. D. Mvipes Fries, Stirp. Fenasj., p. 83. Stalks compressed, 

 sulcate, orange-scarlet ; sporangia globose, grey, villous ; spores 

 blackish. 



Hal). On rotten birchwood. Sweden. 



Stalks and hypothallus, wken present, as in Trichia ruliformis, 

 2 mm. or more in lengtk ; sporangia often confluent, blackish, but 

 clothed with delicate grey down ; columella none, flocci brown. 



The description suggests a mouldy specimen, possibly of Trichia 

 Botrytis. 



10. D. versipelle Fries, Syst. Myc., iii., p. 117. Sporangia 

 lenticular, umbilicate beneath, at first whitish-pruinose, then 

 shining chestnut-brown ; stalk conical, rugose, pale yellowish-red ; 

 columella brown; spores black, 



Hob. On dead stalks, etc. ; rare. Sweden. 



Stalk 2 mm. long, arising from a vein-like hypothallus ; sporangium- 

 wall membranous, at first pruinose, then naked and shining, opening 

 by a longitudinal fissure ; columella as in Schrader's figure of D. 

 tigrinum, Nov. Gen. PL, t. 6, fig. 3. 



This description applies to Lepidodcrma tigrinum Rost. 



11. D. daedalium Berk. & Br., in Ann. Mag. Nat. Hist., Ser. 2, 

 v., p. 366 (1850). Sporangia connate, labyrinthine-sinuous, pale 

 brick-red, of the same colour as the short connate stalks, sprinkled 

 with white meal ; flocci white ; spores purple-black, smooth, 

 globose. 



Hal}. In great abundance in a cucumber frame. Milton, Norths. 



Spreading far and wide in little globose masses ; stems reddish- 

 brown, inclining to orange, connate, as if composed of little flat 

 bran-like membranes, sporangia having a greyish tinge from the con- 

 tained spores, which are purple-black ; variegated with the white 

 flocci, which are frequently forked, and vary greatly in width, being in 

 parts flat, broad, and membranous. 



This description of the connate sporangia, membranous stalks, 

 and white capillitium applies to some forms of Badhamia utricularis, 

 but the colour of the sporangia is against this determination. 



12. D. angulatum Peck, in Rep. N. York Mus. Nat. His., 

 xxxi., p. 41. Sporangia delicate, subglobose, whitish, clothed 

 with minute granules and crystals of lime; stalk short, whitish; 

 columella subglobose, pale yellowish ; capillitium scanty, delicate, 

 white, or slightly coloured ; spores irregular, angular, black, 9 to 

 12 p.. 



Hal. On dead leaves. Adirondack Mts., N.Y. 



This description applies to specimens of D. effusum in which the 

 spores have shrunk. 



13. D. coimatum Peck, in Bull. Buffalo Soc. Nat. Sc., i., p. 64 

 (1874). Peridium depressed or subglobose, cinereous, furfuraceous, 



