342 THE JOURNAL OP BOTANY 



Previously recorded from Italy on Sax. rotunclifolia. Mr. Boyd 

 says the infested plants are easily recognized by the abnormal ]xvle- 

 greon colour of the leaves at the tips of the branches ; the leaves 

 lower down are brown and killed by the fungus. I am indebted to 

 Miss E. M. Wakefield for the recognition of this species. 



297. Crtptospoeium ViNCiE Otth. Bern. Mitth. 18G8, p. Gl. 

 Sacc. Syll. xi. 585. 



Var. ramulonom Gr. Acervulis ranaulicolis, dense sparsis, rotun- 

 datis, nigrescentibus, centro pallidioribus, depressulis, ca. 200-300^ 

 diam., epidermidem levantibus tandemque poro lato rotundo apertis, 

 absque j^ycnidio. Conidiis allantoideis, curvatis v. hamatis, utrinque 

 subattenuatis, hyalinis, subinde guttulatis, 19-22 x 2-2| /x ; sporo- 

 phoris brevissimis, e strato molli olivaceo parenchymatico oriundis. 



Hab. in caulibus aridis emortuis Vincee majoris, Seamill, Ayr- 

 shire, Apr. 1918 (Boyd). 



Differs from the type merely in the shorter spores and in not 

 being on leaves. The pustules are brownish, then blackish, at length 

 elevated and whitish in the centre, where the epidermis is pierced by 

 a rather wide pore. 



298. LiBERTELLA Opuli Oud. Contr. Flor. Myc. Pays-Bas, xvii. 

 295. Sacc. Syll. xvi. 1021. 



Pustules scattered, covered, elliptic or oblong, about | mm. Irtng, 

 orange-yellow. Spores cylindrical, curved, rounded at both ends or 

 more tapering below, 15-20 X 2 ^ ; sporophores filiform, about as 

 long. (Tab. 550. f. 14.) 



On thin twigs of Viburnum Ojmliis. Storeton, Cheshire (Ellis). 

 Feb. 



There was very little of this fungus present, but it seems to be 

 identical with Oudemans' species, in which, however, the size of the 

 spores is not given. The original description adds that the spores 

 escaped in pallid-orange heaps, of which no sign was seen in this case. 

 Accompanying it was a large quantity of a Phoma-like sj)ecies, 

 evidently not a Phomopsis, but also not agreeing with the description 

 of Phoma Opuli Thiim. 



299. Marssouia Omphalodis, sp. n. 



Maculis vagis, saepe confluentibus partemque folii dimidiam v. 

 amplius occupantibus, fuligineo-umbrinis, pagina superiore quasi 

 pallido albore allutis, baud marginatis. Acervulis epiphjdlis, usque 

 100 /J. diam., sparsis, innatis, rotundis, brunneolis. Conidiis oblongis, 

 utrinque rotundatis, ut pkmmum rectis, sjepe ad septum leviter con- 

 strictis, loculis rarissime inaequalibus, 2— 4-guttulatis, 9-12 x 2^-3 ^u.. 



Mab. in foliis languescentibus Omphalodis vernce, Saltcoats, Ayr- 

 shire (D. A. Boyd), July. 



The whitish coating with which the up]3er surface of the spots 

 appears to be washed is due to the hairs and the loosened epidermis. 

 It was not until the spores were strongly stained by iodine solution 

 that the septum becaine apparent, although the fact of its existence 

 was indicated by the median constriction. No pycnidial wall could 

 be seen ; if there was one, it was excessively thin. 



