NEW OR NOTEWORTHY FUNUI 15 



at times aggregated. Spores cylindrical, obtuse at both ends, 4-5 x 



On living leaves of Pyrus Mains. Stevenston, A^-rshire (Boyd). 

 Aug. 



* The spots are very conspicuous, but appear as if the leaf were 

 merely dry and dead ; the pycnidia can be seen only with a lens. 



307. Piirj/r.osTiCTA buxina Sacc. Syll. iii. 24.*^ Allesch. vi. 25. 

 Spots variable in form, becoming pale, with a distinct narrow 



dark })uri)le border. Pycnidia scattered, rather dense, punctiform, 

 about 100 IX diam., prominent, black, with a pale spot in the centre. 

 Sporjs oblong-ellipsoid, 4-5xlg-2/x,, eguttul.ite, hyaline. 



On living leaves of Biixus seinperDireiis. Box Hill, Surrey. 

 Aug. 



This is probably an early state of Ascocliyfa luxina Sacc. 1. c. 

 p. 393. It is quite distinct from P. liinbalis Pers. in its minute 

 pycnidia, etc. 



308. Phyllosticta Geossulari^ Sacc. Syll. iii. 17. Allesch. 

 vi. 82. 



Pycnidia epiphyllous, round, up to 120^ diam. and on spots as 

 described ; texture thin, plectenchymatous, dark honey-coloured, 

 hardly darker round the pore. Spores of two kinds, intermixed in 

 the same pycnidium, (1) ellipsoid, biguttulate, 5-0x3/<, (2) oblong- 

 linear, 3-4 X 1 /i, obtuse at both ends. 



On the same leaves was 



309. AscocHYTA RiBESiA Sacc. & Fautr. in Bull. Soc. Myc. Fr. 

 1900, p. 22. Sacc. Syll. xvi. 92(5. Allesch. vii. 879. 



Spots like those of the Plti/llosticfa, in fact often the same spots. 

 Pycnidia epiphyllous, few, lens-shaped, 150 /x, diam., blackish, opening 

 by a central pore ; texture somewhat parenchymatous, olive-brown, 

 darker round the pore. Spores oblong-fusoid, 1-septate, acute at both 

 ends, or somewhat obtuse, especially at the upper end, pale olivaceous. 

 13-14x2^-3^. 



On living leaves of Bihes Grossularia. Bute and Ayrshire 

 (Boyd). Aug., Sept. 



Pycnidia darker than those of the Phyllosticta. This Ascochi/ia 

 is probably only the leaf -form of Hendersonia Grossiilari<s Oud. 

 (Sacc. Syll. xiv. 954; Allesch. vii. 230), for many of the spores 

 of the Ascocliyta were 4-guttulate, in such a way as to suggest tri- 

 septation, although only two or three spores were seen, out of many 

 hundreds, in which the two additional septa could be discerned. If 

 it were a distinct species, it would be placed, on account" of its spores, 

 in the genus Ascochytella Died. 



310. Phyllosticta heltanthemtcola Allesch. in Ber. Bayer. 

 Bot. Gesell. 1895, p. 31 ; llabenh. Kr. Flor. vi. 125 ; see also vii. 767. 



Spots indefinite, ochraceous, or none. Pycnidia roundish or 

 angular, lens- shaped, blackish, densely scattered, often occupying the 

 whole leaf, 80-100 /z diam., furnished with a pore; texture thin, 

 pale brown, indistinctly prosenchymatous. Spores oblong-cylindrical,. 

 zb rounded at the end, faintly biguttulate, 0-8 X 1^-2^1/, but varying 

 much. 



