New or Rare Microfungi. A. L. Smith and J. Ramshottom. 371 



The conidia of Mr Marriott's specimen are generally shorter 

 than 20jLi, but though the habitat is different there is no doubt 

 that it is the same as the Belgian plant. 



B. Paeoniae Oud. in Med. Konink. Ak. Wet. Amsterdam, 

 p. 464, fig., 1897. 



Mycelium within the leaf. Conidiophores long, numerous, 

 emerging by the stomata, congregate in tufts, branched, the 

 branches, three to five, produced spirally, once or more divided 

 at the tips, the end cell developing to a globose or flattened 

 swelling covered with fine spines; conidia (in heads 20-40 /x 

 across) ovate-elongate 16-18/x x 7-7-5/^, hyaline or faintly 

 coloured. 



Causing disease of Paeonies. Spalding, Lines. (J. K. Rams- 

 bottom), April. 



See Massee (Dis. Cult. Plants, etc. p. 267, 1910) on Sderotinia 

 Paeoniae. 



Martensella Coemans in Bull. R. Ac. Belg. ser. 2, XV, p. 536, 

 1863. 

 Sterile hyphae creeping, branched; fertile erect, simple or 

 dichotomous, septate; conidiophores lateral, short, curving at 

 the apex. Conidia subfusiform biseriate along the upper surface 

 of the conidiophore. 



M. pectinata Coemans, loc. cit. t. 2, fig. 10. 



Scattered or in tufts. Fertile hyphae greyish-yellow or green- 

 ish; conidiophores scattered, 7-9-septate; conidia biseriate-pec- 

 tinate i8/x x 3ju on the curving boat-shaped branchlet. 



Parasitic on hyphae of Mucor or Saprolegnia. 



Found in a soil-culture by Miss Jewson at Rothamsted. 

 Comm, W. B. Brierley. 



Ramularia Hypochaeridis Magnus, in Verh. Bot. Ver. Prov. 

 Brand, xxxvii, p. 83, 1895. 



Leaf spots roundish, scattered, 2-5 mm. in diameter, brown- 

 ish, almost constantly epiphyllous, with a violet coloured mar- 

 gin, sometimes concentrically zoned; tufts amphigcnous; coni- 

 diophores emerging in tufts from the stomata, unbranched, 

 rarely septate, somewhat bent, 27-38 x 2- $-'^11; conidia cylin- 

 drical, blunt at the ends, often somewhat tapering, simple or 

 uniseptate, 19-27 x 3-3-5jLt. 



On living leaves of Hypochaeris radicata. Wisley, Surrey, 

 June 1916. 



The fungus was abundant at Wisley on the host plant on 

 which were large decaying violet patches. The spores in our 

 specimens measure up to 36/^ long. 



