CEYLON FUNGI. 25 



description has been copied into Saccardo as it stands, but 

 Cesati's unit of spore measurement was 2 [k, and consequently 

 the dimensions of the spores should be 20-22 X 5 [l. 



This species has been re-discovered on leaves of Lycopodmm 

 phlegmaria at Hakgala . The perithecia are chiefly epiphyllous, 

 immersed, black, depressed globose, 0-3 mm. diameter, with 

 sUghtlyprojectingostiola. By transmitted light the perithecial 

 wall is rather pale brown, except at the ostiolum, which is 

 black. The asci are narrow-clavate, almost sessile, without 

 paraphyses, eight-spored, about 90 X S [k. The spores are 

 narrow-oval or fusoid, straight, ends acute, hyaline, three- 

 septate, not constricted at the septa, 16-24 X 4-6 [x. 



255. — Clypeolum zeylanicum Cke. & Mass. 



This species was described by Cooke and Massee in Grevillea, 

 XVII., p. 43, from Ceylon specimens, as " Peritheciis sparsis, 

 superficialibus, dimidiato-scutatis, atris, nitidis (| mm. diam.), 

 macula nulla vel macula brunnea indeterminata, inside ntibus. 

 Ascis clavatis. Sporidiis ellipticis, uniseptatis, hyalinis, 11 X 

 3 [K." In Grevillea, XVIII., p. 35, they stated that it occurred 

 also on leaves from Brazil (Glaziou 18070, 18084, 18078). 



The Ceylon specimen in Herb. Kew bears a label marked 

 Ceylon in Berkeley's handwriting, and the locality " Pada- 

 cumbra " in pencil. There is no date or name of the host plant. 



The perithecia are situated on the upper side of the leaf in 

 blackish patches up to 5 mm. diameter. These patches are 

 superficial films, formed by rays, which start from a central 

 point, branching and expanding as they run outwards, and 

 ultimately coalescing into a more or less continuous patch. 

 The arrangement resembles that of Cephaleuros. The rays 

 are pale brown, blackening at the margins. The perithecia 

 are embedded in the film ; they are black, up to 0*5 mm. 

 diameter, smooth, peltate, broadly conical, superficial, with a 

 thick, opaque, carbonaceous wall, in which the structure is 

 not evident. The asci are narrow-clavate, 30 x 4 (/.. The 

 spores are hyaline, fusoid, one-septate, 12-14 X 3 [ji. 



The structure of the film does not agree with that of the 

 Trichopeltacese. It would appear that Clypeolum zeylanicum 

 should be classed as a lichen. 



6(4)19 (4) 



