58 Transactions British MycoJogical Society. 



Trichocrea oodgs Bayliss Elliott. Sp. n. 



Pycnidium superficial, gregarious, lemon or egg-shaped. 

 130-190/Jt X 180-200/^, stalk, 50-100/^ long, shining, whitish; 

 excipulum consisting of very narrow interwoven septate 

 hyphae; at first closed, then open, margin fringed with 

 converging hairs. Pycnospores elongate, linear, some 

 slightly bent and thicker in the middle, 30-60 x 0.5/x aseptate 

 and pluriguttulate, colourless, situated on branched 

 sporophores, which rise in dense clusters from the base of 

 » the pycnidium : the pycnidia turn black with age, (Figs. 12, 

 13, 14, 15, 16). 



On a fallen cone of Pinus syhestris. 1 anworth-in-Arden, 

 Warwickshire. 



I have included this is the genus Trichocrea although it 

 does not quite agree, seeing that the excipulum is not 

 parenchymatous but of interwoven hyphae ; also the spores 

 are continuous, not septate, but they may become so since 

 they are pluriguttulate : but as the genus Trichocrea hitherto 

 only contains one species, Tr. stenospora March, recorded for 

 Belgium, which has some points of resemblance with this 

 species, it seems better to do this than burden the classi- 

 fication with another genus. 



The spores germinate readily in 24 hours and by means 

 of connecting hyphae often anastomose with one another. 



A group of pycnidia looks very like a cluster of insect's 

 eggs, so much so that although I had frequently seen groups 

 of them I had not troubled to examine them, thinking they 

 were insect's eggs. 



The hvphaj forming the excipulum, the long branched 

 conidiophores, the attenuated pycnospores are all so nearly 

 of the same narrow width that a crushed pycnidium appears 

 little more than a mass of pycnospores unless very carefully 

 examined. 



Latiji diagno.iis. Pvcnidiis gregariis, superficialibus, ovatis 

 vel limoniiformibus, 150-190 x 180-200 fi, pedicello 

 50-100/1 longo pr^ditis, nitidis, albidis, senio 

 nigrescentibus, initio clausis, dein apertis, excipulo 

 hvphis angustissimis septatis intertextis constante, 

 margine pilis convergentibus ciliato. Sporulis 

 elongatis, linearibus, raro flexis medioque crassio- 

 ribus, 30-60 X 0.5 /i, eseptatis, pluriguttulatis, 

 achrois, sporophoris e basi pycnidii oriundis dense 

 fasciculatis suffultis. 



Hab. in cono delapso Pini sihestris, (Figs 12-16). 



