Cribraria. 57 



(Rostafinski's Synonyms.) 



Cribraria macrocarpa, Schrad., Nov. Gen., p. 8, t. ii., f. 3 4 



(1797). 

 Trichia macrocarpa, Poir., Ency., 1. c. viii., no. 30 (1808). 



Cribraria purpurea, Schrad. (f. 109). 



Sporangia globose, stipitate, dark purple, calyculus well- 

 developed, with thickened ribs, sometimes irregularly perforated 

 near the dentate margin ; nodes of network containing purple 

 granules, small, usually elongated, but very irregular in form, 

 with numerous processes, connecting threads thin, some of the 

 processes are prolonged into simple or branched irregularly bent 

 threads that remain free at the tips, and not connected with 

 other nodes or threads ; stem elongated, flexuous, purple ; spore- 

 mass dark purple, spores almost colourless, or with faint tinge 

 of rose, globose, smooth, 5 7 ju, diameter. 



Cribraria purpurea, Schrad., Nov. PI. Gen., p. 8 ; Host., Mon., 

 p. 233 ; Sacc., Syll., 1408. 



On decayed pine trunks. Germany; Britain (specimen in 

 Herb. Kew marked, " Herb. Dawson Turner, British ") ; Sweden 

 (specimen collected by Lindblad, and communicated to Berkeley 

 by Fries). 



Gregarious or scattered, about 1'5 mm. high, stem 3 4 

 times as long as sporangium, usually more or less flexuous. 

 Agrees in colour with C. elegans, but readily distinguished by 

 the smooth spores and numerous free ends in the permanent 

 network of the sporangium. Distinct from C. macrocarpa in 

 the globose sporangium and long, slender, flexuous stem. 



Cribraria aurantiaca, Schrad. (f. 104). 



Sporangia globose, usually more or less cernuous, orange 

 brown, calyculus occupying one-third or more of the sporangial 

 wall, furnished with ribs which pass upwards to form the net- 

 work, nodes coloured, containing granules, large, irregular, united 

 by thin, colourless bands ; stem elongated, attenuated upwards, 

 where it is curved, bright brown, expanding at the base into a 



