Trichia.] BRITISH MYCETOZOA. 35 



diam., with 2 spiral bands. Spores ochraceous, minutely vvarted, 

 13 /j. diam. 



Hab. On dead wood. Common. 



7. T. contorta Rost. — Sporangia yellow-brown, subglobose or 

 curved, gregarious or scattered, sessile ; sporangium-wall charged 

 with granular matter. Elaters yellow or brown, 3, rarely 5 \x diam., 

 with 4 close, often indistinct, spiral bands ; the tips usually swollen 

 and ending in a curved point. Spores yellow, minutely warted, 

 12 jx diam. 



Hab. On dead wood. 



8. T. erecta Rex. — Sporangia dark brown, reticulate with 

 bright yellow, broad veins, which are free from granular deposits, 

 turbinate, stalked, scattered. Elaters often very long, 4 /u. diam., 

 with four close spiral bands, spinulose. Spores yellow, minutely 

 warted, 12 //. diam. 



Hab. On dead wood. 



This species is closely allied to Hemitrichia intorta. 



9. T. fallax Pers. — Sporangia turbinate, stalked, gregarious, 

 shining olive-brown. Stalk hollow, filled to the base with spores. 

 Elaters brown, tapering into long slender points ; spiral bands 4 to 5. 

 Spores yellow-brown, minutely warted, 9 to 12 yx diam. 



Hab. On dead wood. Common. 



10. T. Botrytis Pers. — Sporangia turbinate, stalked, gregarious, 

 simple or combined in clusters, purplish-brown, often reticulate with 

 yellow veins, or black. Stalk dark brown, solid. Elaters brown, 

 tapering into long slender points ; spiral bands 3 to 5. Spores 

 ochraceous, minutely spinulose, 9 to 11 \t. diam. 



Hab. On dead wood. 



Var. lateritia. — Elaters pale burnt-sienna, with shorter points. 

 Spores orange-yellow. 



Hab. On dead wood. 



Var. flavicoma. — Sporangia minute, solitary ; elaters and spores 

 bright yellow. 



Hab. On dead leaves, holly, etc. 



Genus 28. OLIGONEMA Rostafinski. 

 — Sporangia minute, densely clustered, 

 sessile. Elaters scanty, with spiral bands 

 obscure. 



1. 0. nitens Rost. — Sporangia sub- 

 globose, o'3 mm. diam., heaped together, 

 shining, yellow. Elaters usually few, 

 short, obtuse, sometimes longer and Fig. 36. 



pointed ; spiral markings faint or wanting. Ougonema mtens Rost. 



c- . c j- 11 «.• l„.. a. Cluster ot sporangia. Magni- 



Spores 11 to 16 /x diam., yellow, reticulate, fled 3 times. 



with a border I a wide. *• Hater. Magnified 280 times. 



TT , „ , r , , c. Spore. Magnified 400 times 



Hab. On dead wood. 



