84 THE JOURNAL OF BOTANT 



brown, of loose parenchymatous cells. Spores linear-fusoid, tapering 

 at both ends, straight or somewhat curved, furnished with a row of 

 guttules, 33-35 x It />«-. (Fig. 7.) 



On fading leaves of Banunculus Flammiila. Kilwinning, Ayr- 

 shire (Boyd). July. 



Differing a little from Karsten's species in the proportions of the 

 spores, but the spots are almost exacth^ the same. His specimens 

 were on JR. lapj)onicu8. 



349. Septoria Polypodii, sp. n. 



Maculis nullis. Pycnidiis sparsis, discretis, sed interdum breviter 

 seriatis v. aggregatis, orbicularibus, lentiformibus, prominulis, atro- 

 nitidis, 100-150 /x diam., poro minuto (7-8/xdiam.) pertusis ; con- 

 textu parenchymatico, tenui, membranaceo, sed impellucido, brunneo- 

 fuliginoso, circa porum obscuriore. Sporulis copiosis, angustissimis, 

 filiformibus, plerumque rectis, hyalinis, eguttulatis, 35—45 X i ^t, 

 sporophoris linearibus, achrois, septatis, arrectis, sjDora triplo v. quad- 

 ruplo amplioribus, 9-10 X 1^ a suffultis. 



Hah. in foliis emortuis Folypodii Fhegopteridis, Glen Falloch, 

 Perthshire (Boyd), Maio. 



The pycnidia usually occupy the rachis, and the petiolules and 

 nerves of the leaflets. On the petioles of the same leaves was LejUo- 

 stromrlla FoJypodii (see no. 359), a species allied to i. ^coJopendrii 

 Sacc. Septoria JPoh/podii is not identical with S. As^^Ienii Ell. & 

 Ev. in Proc. Acad. Philadelph. 1895, p. 434. 



350. Septohta posoxie>'sis Bauml. in Hedwig. 1885, p. 75. 

 Sacc. Svll. X. 367. Allesch. vi. 757. 



Spots roundish, 3-6 mm. diam., greyish-green or dark-cinereous, 

 without any distinct border, ver}^ inconspicuous. Pycnidia epiphvl- 

 lous, closely gregarious, globose, 60-130^ diam., immersed, pene- 

 trating the epidermis with a rather prominent widely-jjierced papilla ; 

 texture thin, pale-fuscous, darker round the ostiole. Spores numerous, 

 filiform, flexuose or bent, faintly and minutely guttulate, 25-56 x 

 1-3-1-5/x. 



On living leaves of Clirijsosplenium opposififolium. West Kil- 

 bride, Ayrshire (Boyd). Aug. 



351.'Septoeia Sii Rob. & Desm. in Ann. Sci. Nat. 1853, xx. 92. 

 Sacc. Syll. iii. 529. Allesch. vi. 857. 



Spots roundish or angular, very irregular, brownish, then paler, 

 often surrounded by a paler border. P^^cnidia epiphyllous, minute, 

 brown, slightly prominent. Spores filiform, straight or curved, with 

 numerous guttules, 30-40 x2| /a, emerging in colourless tendrils. 



On leaves of Hiiim erectiim. West Kilbride, A^a'shire (Boyd). 

 Sept. 



352. Rhabdospora Euphorbi.^ Brun. Liste Sphserops. p. 52. 

 Sacc. Syll. x. 396. Allesch. vi. 903. 



? Phoma EiiphorhicB f . ampUor Brun. in Bull. Soc. Sci. Nat. 

 Nantes, 1894, iv. 34. Sacc. Syll. xiv. 884. Allesch. vii. 801. 



Pycnidia crowded, gregarious, subepidermal, then erumpent by a 

 slit, 120-200 /x diam., shining, black; texture thick, dark olive- 

 brown. Spores cj'lindrical, usually straight, sometimes with a faint 

 guttulc at each end, 10^-18 X 2 /x ; sporophores very short. 



