156 



Transactions British Mycological Society. 



MyxosporiumPolygoniW . B. Grove in Journ. Bot. Ivi. p. 340, 1918. 

 On stems of Polygonum cuspidatum in Botanical Garden, 

 Birmingham, associated with Phoma anceps var. Polygoni. 



Marssonia Omphalodis W. B. Grove, loc. cit, p. 342. 



On decaying leaves of Omphalodes verna, Saltcoats, Ayr- 

 shire (D. A. Boyd), July. 



HYPHOMYCETES. 



Ovidaria Doronici Sacc. in Mich. ii. p. 638, 1882. 



Spots hypophyllous, spreading, whitish. Conidiophores in 

 tufts, non-septate, shortly branched above or denticulate, 30- 

 40 /x long, 3ju. thick, colourless; conidia elongate sometimes sub- 

 fusiform, occasionally in chains, 12-15 /x x 4-5 /u-, colourless. 



On the imderside of the leaves of Doronicum Pardalianches, 

 Flax Bourton, Somerset. Comm. T. M. Roper, Bristol, Feb. 1919. 



COREMIUM SVVANTONII n. Sp. 



Stroma simplex albo-ochraceum usque ad 15 mm. alt., 

 I mm. lat. vel tenuis ca. 5 mm. x 0-2 mm. Hyphae fertiles 



capitula singula, 2-3 mm. diam. vel 

 plura coalescentia, sporis pulvereis ob- 

 tecta, formantes. Hyphae longae, sep- 

 tatae ca. 2ju, lat. irregulariter ramosae; 

 verticilli fertiles sparsi ca. lo/x long, 

 pluribus sterigmatibus praediti ; sporae 

 minutae ellipsoideae vel globosae, sim- 

 plices, catenulatae, 3^11 x 2)Lt vel 2ju. 

 diam., hyalinae. 



In vespa emortua. Blackdown, 

 Haslemere, Surrey: E. W. Swanton. 



The fungus is probably saprophytic 

 on the wasp {V. sylvestris) which was 

 lying entangled in moss, 



Acrostalagmns albiis Preuss. 



This species was recorded from Cambridge in Trans. B. M. S. 

 i. p. 71, 1897. It has recently turned up in a chemical solution 

 from Coventry. In the solution there was a dense mass of felted 

 hyphae; a culture on glucose agar grew freely producing dense 

 clusters of yeast spores and a vigorous growth of Acrostalagmns. 



RamulariaLysimachiarum Lindroth in Acta Soc. Faun. Fl. Fenn. 

 xxiii. p. 28, 1902. 

 Leaf-spots brown, then dark-green, at length yellowish, often 

 covering complete portions of the leaf from the margin inwards, 

 without a margin. Tufts on both sides of the leaf (mostly under 

 surface), very small, white; conidiophores, 5 to 15 emerging 



Fig. 2. Coremium Swantonii 

 A. L. Sm. 



a. Wasp with fungus. Nat. 



size. 



b. Head of Coremium. x 5. 



