A New Discinella. W. D. Buckley. 347 



branched at varying distances from the base, sometimes sub- 

 dichotomonsly and at others on one side only and often pre- 

 senting a budding appearance; the apices are at times shghtly 

 thickened and shortly and acutely bent, but this is not the 

 normal condition. They contain oil globules and granulations 

 which give a pseudo-septate appearance. The excipnlum shows 

 signs of separate hyphae at the base, passing into a pseudo- 

 parenchymatous condition of irregular cells of greatly varying 

 size and form, becoming very small and compacted at the 

 margin; the hypothecium is finely cellular. The three species, 

 Menziesi, minutissima and margarita fall into a natural group, 

 being characterised by a more or less intense shade of pink 

 combined with white or grey, whereas the other species of 

 the genus show some marked shade of purple or brown. The 

 affinity indicated is natural and more easily recognised than 

 expressed. The specimens were accompanied by Helotium lute- 

 olum Currey {Dasyscypha liiteola (Curr.) Sacc.) which also oc- 

 curred on Ulex stumps. 



My thanks are due to Mr Ramsbottom of the British Museum 

 for much help in the preparation of this note. 



Discinella margarita. 



Gregaria, minutissima ad 2 mm. lata, turbinata, crassa, 

 margaritaceo-grisea roseolo-tincta; carnosa, margine integro; 

 primo concava mox applanata. Paraphysibus tenuibus circa 

 i/x crassis, oleosis, filiformibus, simplicibus aut ramosis, ad 

 apices non aut vix incrassatis, hyalinis, non-septatis. Ascis 

 modicis 70-80^11 longis x g-iOfx latis, inoperculatis, octosporis, 

 foramine marginato, cylindrico-clavatis ad basim vix attenu- 

 atis, ad apicem iodo non caerulescentibus. Sporis fusiformi- 

 bus, hyalinis, levibus, continuis, saepe leniter curvatis, 9-15^1 

 longis X 3-4/A crassis, intus guttulosis, et granulosis; guttuhs 

 2-5 plerumque, granulis minoribus. 



Ad terram argillosam inter muscos, Slough, May 1920. 



, Discinella margarita. 



Gregarious, up to 2 mm. broad, turbinate, thick, pearl grey 

 with a tinge of flesh colour; fleshy, margin entire. At first con- 

 cave then convex and spread out. Paraphyses filiform, simple 

 or branched, apex slightly or not at all thickened, hyaline non- 

 septate, containing oil drops. Asci medium size 70-80/x long by 

 9-10/X broad, inoperculate, 8-spored, opening marginate, cyhn- 

 dric-clavate, slightly attenuated at the base, not coloured blue 

 with iodine. Spores fusiform smooth, continuous, sometimes 

 curved on one side 9-15/x. long by 3-4/^ broad, 2-5-guttulate 

 with granules. 



On the ground among moss under Ulex, Slough, May 1920. 



