Nc-w or Rare Microfun^i. A . T..Smilh&r' J. Ramsbottom. 51 



MELANCONIACEAE. 



Myxosporium lanccola Sacc. & Roum. Rev. Mycol. 1884, 

 p. 36. 



Acervulae gregarious, like tubercles, bursting the 

 epidermis, flesh coloured, with a darker base, white above; 

 spores elongate, fusiform, gutlulate, colourless, 20-22/^. long 

 (or shorter), about 4/^1 thick; sporophores rod-like, half the 

 length of the spores. 



On dead bark of Qucrcus Rohiir. D. A. Boyd, Stevenston, 

 Ayrshire, Sept., 191 7. 



M. pubescens Sacc. Syll. x. p. 465, 1892. 



Acervulae roundish, pale coloured ; spores blunt at tiie ends, 

 straight or slightly bent, mostly filled with guttulae. 

 Sporophores (?) one-celled, in the mature fungus projecting 

 like hairs. 



On dead bark of Tilia. Coll. D. A. Boyd, West 

 Kilbride, Ayrshire, May, 191 7. 



The size of the spores is not given in the original diagnosis. 

 In Mr. Boyd's specimens they are oblong, rounded at the 

 ends and full of small guttulae, they measure about 15x7/1. 

 The projecting filaments are not present. 



Amphichaeta Mac Alp- Proc. Linn Soc. N. S. Wales 1904 

 p. 118; Sacc. Syll xviii. p. 486, 1906. 



Acervulae subcutaneous, often erumpent, disciform or 

 pulvinate. Conidia elongate, 2-pluriseptate, become partly 

 coloured, i-ciliate, at each end. 



A. EUROPAiiA Grove in Journ. Bot. Ix. p. 136, 1917. 



On thick dead shoots of Vitis vinifera, King's Cliffe, 

 (Berkeley, 1851). In Kew herbarium. 



Lcplosiromella ptcridina (Sacc. et Roum. Mich. ii. p. 353, 

 1880-82); Sacc. Syll. iii. p. 660, 1884. 



Pycnidia elongate, applanate, i-i.5mm. long, immersed 

 then subsuperficial, not sulcate ; spores filiform, acicular, 

 colourless, 5-6-septate, 8o/x x 1.5/x. 



On stems of Pteris aquilina. West Kilbride, Ayrshire, 

 May, 1917. Comm. D. A. Boyd. 



In Mr. Boyd's specimen the spores measure about 50/x to 

 75/x. None have been seen up to 8o/x in length, and usually 

 thev are between 50 and Go/x. There seems however no 

 reason to doubt that the specific determination is justified. 



