NEW OR NOTEWORTHY FUNGI 53 



tectis, dein ea radiatim v. sulcatim fissa erumpentibus, atris, glo- 

 bosis, |-f mm. diam., umbilicatis, denique patelliformibus. Sporu- 

 lis hyalinis, intus granulosis, 30-40 x 12-13 /z, oblongo-ellipticis, 

 basidiis rectis filiformibus 50 x 2i /x suffultis. (Tab. 516, fig. 13.) 



In ramis Fraxini excelsior is, Over Whitacre (Wk.), April. 



This variety differs from Peck's species in possessing a distinct 

 black pycnidium, which, however, appears to be made from the 

 cortex ; it is at first globular, continuous all round, then opens at 

 the top with an umbilicus, and gradually expands to a dirty 

 whitish disc, surrounded by a black margin. The spores are 

 remarkably large, and remind one of the conidia of a Perono- 

 spora. They are straight in front view, but curved when seen 

 from the side. 



There can be little doubt that Phoma hyalina Sacc. Syll. 

 Fung iii. 88 {Sphceropsis hyalina B. et C.) is the young state of 

 this species. 



203. Glceosporium phacidiellum m. Maculis suborbicu- 

 laribus, i-li cm. diam., albidis, margine angusto fusco cinctis ; 

 acervulis epiphyllis, numerosis, minutis, dilute fuscis, translucen- 

 tibus, tectis, dein epidermide fissa 3-4 laciniis (ad instar Phacidii) 

 coronatis ; conidiis oblongis, obtusis, granulosis fere achrois, 

 18-20 X 7-8/x, basidiis crassis 40 x 6-7 fx suffultis. 



In pagina superiore foliorum viventium Prwii lattrocerasi, 

 Studley Castle, Mar. Presumably the pycnidium stage of Trochlia 

 laurocerasi. 



204. Glceosporium phillyrese m. Acervulis hypophyllis, 

 non maculicolis, sparsis v. gregariis, atris, epidermide nigrificata 

 tectis, dein poro albo pertuso erumpentibus, 150-250 /u. Conidiis 

 hyahnis, elhpticis, interdum subacutatis, biguttulatis, 8-9 x 2-2i/x. 



In pagina inferiore foliorum emortuorum Phillyrecs medice, 

 Studley Castl6, April. 



205. Marssonia Delastrei Sacc. Syll. Fung. iii. 770 ; Trans. 

 Brit. Myc. Soc. iii. 39. 



Spots roundish, indeterminate, pale yellowish, indistinct; acer- 

 vuli small, round, elevated, pallid in centre, with a narrow brown 

 margin. Conidia about 25 x 6 /a, unequal, inaequilateral, clavate- 

 pyriform, often curved, colourless, on short basidia, at length 

 1-septate below the middle, and oozing out as a white tendril. 



On both surfaces of the leaves of Lychnis diurna, Berkswell 

 (Wk.), x\ugust. Except for the short basidia, the earlier stages, 

 on the same leaves, exactly resembled Glceosjporizcm lychnidis Oud. 



206. Marssonia Castagnei Sacc. Syll. Fung. iii. 768. 

 Epiphyllous, forming round, confluent brown spots, without 



any darker margin. Conidia 25-26 x 9 [x, oblong -pyriform or 

 clavate, curved, hyaline, distinctly septate below the middle, not 

 constricted at the septum, oozing out and forming whitish tendrils. 

 On the upper surface of fading leaves of Populus nigra, Olton 

 (Wk.), November. The spots covered more or less the whole 

 surface of the leaf ; under a lens, each spot could be seen dotted 

 over with the little translucent acervuU of (undischarged) conidia. 



