for tJie Microscope. 49 



gether laterally, so as to differ considerably in appearance 

 from most other species. Found on poles and bare sticks, 

 in smaller patches than the last. (PI. V., fig. 16.) 



345. RED CHEESE MOULD (Tornla sporcndonema). . 

 Found in reddish patches on old cheese, and is very dif- 

 ferent to the common Blue Cheese Mould, having the 

 simple spores attached together in chains. The same 

 species occurs on rats' dung, and we have seen it growing 

 upon glue. 



346. BEADED TWIN-SPORE (Bispora monilioides). The 

 black sooty patches on old stumps are sometimes a species 

 of Tomla, but are more commonly this fungus. The spores 

 are chained together as in Torula, but the spores are 

 larger, and each spore is divided by a transverse septum. 

 It is exceedingly common. (PL V., fig. 28.) 



347. COIL-SPORED FUNGUS (Helicosporium vegetum.) 

 A curious fungus which has been found on rotten oak 

 sticks, but is evidently uncommon. The spores are long 

 and narrow, curled round in a spiral manner, or like the 

 involutions of a coil shell. (PI. V., fig. 9.) 



348. RED TUBERCULARIA (Tubtrcularia vulgaris). 

 Common on dead twigs, especially on currant. Forms 

 bright pink or reddish, rounded, and prominent tubercles, 

 breaking through the bark. (Only a spermatiferous con- 

 dition of Nectria!) The surface consists of a dense 

 stratum of minute sporidia (?). 



349. NETTLE FUSARIUM (Fusarium tremdloides). 

 Little reddish patches, of a rather gelatinous nature, 

 sprinkled over dead stems of nettles. Only a condition 

 of a species of Peziza. If one of the little patches be 

 removed, and placed in a drop of water on a glass slide, 

 the structure can be well examined with a quarter-inch 

 objective. One of the commonest of fungi. 



350. NETTLE BLACK MOULD (Arthrobotryum atrum). 

 Found on nettle stems, just visible to the naked eye. 

 The jointed threads are united so as to form a stem, 

 bearing large, dark, septate spores at the apex, in a kind 

 of dense head. 



351. VELVETY BLACK MOULD (Helminthosporium velu- 



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