NEW OR XOTEVVORTIIT FUNGI 17^3 



oil, apparently residing mainly in the guttules. Tlie spores vary 

 much, the narrower and shorter ones having- no guttules, but the 

 great majority having two large coloured guttvdes. A few had three 

 and eventually four guttules, and in the latter case a septum Avas 

 present in a few spores, but without any constriction. 



On the same culms there was found, in small quantity, what 

 seemed to be the " stylospores " mentioned by Saccarclo (Syll. ii. 70) 

 as belonging to LcpfosplicEria citlmicola, f. minor ; if this sliould be 

 found in other instances, it would tend to justify Saccardo's sugges- 

 tion that the DidymelJa is only an immature form of the Leptosphcjeria. 

 See also wh^ih ^'AiiXnnAev Lejytostromella ptcridina (supra, no. 358). 

 382. Leptospk.eria cliyensis vSacc. Syll. ii. 10. Splicer ia 

 clivensis E. & Br. in Ann. Nat. Hist. 1852, ix. 379, pi. 11. f. 21). 

 L. fjaliorum Sacc. Syll. ii. 22. 



Perithecia scattered, globose, \ mm. diam., black, immersed, 

 erumpent by the shortly conical ostiole. Asci clavate, rounded above, 

 attenuated downwards, pedicellate, 90-100x12-4//, (part, sporif.), 

 S-sj^ored, surrounded by filiform guttulate paraphyses. Spores more 

 or less biseriate, oblong, curvulous, rounded at both ends, 3-septate, 

 sometimes constricted, frequently 4-guttulate, brown, subopaque, 

 22-24x6-7//. 



On dead stems of Arctium Lappa, Kilpeck, Herefordshire ; on 

 Cirsiuui arvense, Bromsgrove and Droitwich. May. 



The spores are at first more or less fusoid and colourless, soon 

 olivaceous and often biguttulate (while still eseptate), becoming 

 afterwards 1-septate, and at last 3-septate and decidedly brown 

 (" brunneis "), closely resembling the brown 3-septate spores of 

 some species of Henderson ia. Berkeley's original specimens on 

 Pastinaca, from King's Cliffe (whence the name clivensis), have 

 been examined and proved exactly similar. The species was found 

 on Bui-dock by Cooke at Darenth, and by Delitsch in Germany, 

 but it seems to occur abroad chiefly on Senecio Jacohcea : it has also 

 been found on Diiysacvs, and my specimens on that host, recorded 

 (Journ. Bot. 1918, p. 28G) as L. gdliorum f. Dipsaci, belong doubt- 

 less to i. clivensis. In fact, I consider now that the whole of the 

 forms of L. galiorum should be placed under the latter name : 

 Saccardo would not have described his species {galiorum) as distinct 

 if he had been acquainted Avitli Berkeley's specimens. The chief 

 mark of the S2)ecies lies in the spores being deeply coloured at maturity, 

 whereby it can be distinguished from allied species of the genus. 

 Cf. also L. rothomagensis (Sacc. Syll. ii. 17), which bears a great 

 likeness to L. clivensis, but may be distinct. All the forms men- 

 tioned here also bear some resemblance to L. vagahunda, but the 

 mature spores of that ^yq fuscous, and the 3^oung s])ores, even Avhen 

 1-septate, are still colourless and remind one strong!}^ of a Diaporilie 

 spore. 



383. Leptosph.t:eia Pitohmii Grove in Kew Bull. 1921, p. 150. 



Perithecia about 400 /x diam., lens-shaped, black, opaque, covered 



by the epidermis, then erumpent at the summit, surrounded at the 



base by purplish hyplue ; texture thick, parenchymatous, ])urplish 



brown. Asci elliptic-oblong, rounded above, with a very thin wall. 



