CEYLON FUNGI. 11 



might be distinct species, the spores in the specimen on 

 Symplocos being 30 a long, and those of the specimen on Paveita 

 15 \x long. In Saccardo it was listed under Cocconia, with a 

 variety, microspora, on Pavetta; recent revisions have not 

 altered that classification. 



Von Hohnel, after examination of the type in Herb. Kew, 

 stated that the spores were the same in both specimens (Fragm., 

 No. 495), and that consequently the fungus occurs on plants 

 which are not closely allied. Theissen and Sydow did not 

 see the specimen on Pavetta. In Herb. Kew the specimen 

 labelled " on Pavetta indica " is not on Pavetta, but on Symplo- 

 cos ; thus, not only the fungi, as determined by von Hohnel, 

 but also the leaves, are identical. 



It may be noted that Thwaites 420 on Pavetta indica was 

 included by Berkeley and Broome under Asterina pelliculosa 

 (Fungi of Ceylon, No. 1140), and has been described by 

 Theissen as Lemhosia Pavettse Theiss. (Ann. Myc, XI., 

 p. 429). The spores of Cocconia placenta are 32-40 x 14-16 [x, 

 and those of Lemhosia Pavettse are 18-21 x 6-8 p.. It would 

 appear probable, therefore, that Berkeley and Broome's 

 specimen of " Cocconia placenta " with spores half the normal 

 size was Lemhosia Pavettss. 



225. — Rhytisma spurcarium B. & Br. 



Described from Thwaites 422, on leaves of Artocarpus 

 integrifolia. On the same leaves also occurred Rhytisma 

 constellaium B. & Br., which was described immediately after 

 the former. Both were included in Saccardo under Marclialia, 

 the second being the type species of the genus. Von Hohnel 

 found that the two species were identical, and transferred it 

 to Hysterostomella, as Hysterostomella spurcaria (B. & Br.) 

 V. H., Fragm., IX., No. 448. Theissen and Sydow {loc. cit., 

 p. 251) amend the genus MarchaUa and retain it for this 

 species, but they adopt the name MarchaUa constellata, as the 

 latter name was placed first in the genus MarchaUa in Saccardo. 

 It would appear to be more correct to keep the name MarchaUa 

 spurcaria (B. & Br.) Sacc. 



MarchaUa spurcaria (B. & Br.) Sacc, Syll. Fung., VIII., p. 

 737 ; Rhytisma spurcarium B. & Br., Jour. Linn. Soc, XIV., 

 p. 131 ; Rhytisma constellaium B. & Br., Jour. Linn. Soc. 



