30 



BRITISH MYCETOZOA. 



[Amauroch.ete. 



ORDER II.— AMAUROCHzETACEzE. 



Genus 17. AMAUROCHzETE Rostafinski. — zEthalia pulvinate, 

 composed of elongate confluent sporangia ; 

 sporangium-walls not developed ; capil- 

 litium rising from the base in irregularly 

 flattened and ragged strands, rarely form- 

 ing a more regular network. 



1. A. atra Rost.— zEthalium black, 

 covered with a silvery evanescent mem- 

 brane. Capillitium black, often very 

 scanty. Spores dull purple, spinulose, 

 11 to 13 /» diam. 



Hab. On fir wood. 



Amauroch^ete atra Rost. 



zi. zEthalium. Half natural size 

 b. Capillitium. Magnified ic 

 imes. 



Genus 18. BREFELDIA Rostafinski.— zEthalia pulvinate, com- 

 posed of subcylindrical, branched, and 

 confluent sporangia. Capillitium of nume- 

 rous horizontal threads, those of adjacent 

 sporangia uniting on the boundary line 

 and there forming a many-chambered 

 vesicle. 



1. B. maxima Rost. — zEthalia some- 

 times many inches across, purplish-brown. 



Capillitium brown. Spores purplish- Fig. 26. 



brown, minutely spinulose, 9 to 12 /a Brefeldia maxima Rost. 



diam. rt. zEthalium. Natural size. 



Hab. On dead wood. *• °}gM«g- jo ^ »P»» 



Cohort U.—LAMPROSPORALES. 

 Sub-cohort 1.—ANEMINE&. 



ORDER I.— HETERODERMACEzE. 



Genus 19. LINDBLADIA Fries. — Sporangia either combined 

 to form an aethalium or closely compacted 

 on a strongly-developed hypothallus. 



1. L. Tubulina Fries. — zEthalia thin 

 or pulvinate, formed of confluent sporangia 

 with persistent membranous walls; either 

 black and rugose, with a cortex of imper- 

 fectly developed spores, or umber-brown 

 with a surface of unbroken sporangia. 

 Spores ochraceous-brown, nearly smooth, Linddlvdia Tubulina Fries. 

 4 to 6 /u. diam. <j. zEthalium. Natural size. 



Hab. On dead wood. *• *$*&£&£!**'"• 



