88 FUNGUS-FLOBA. 



MELITTOSrORIUM. Corda. (figs. 31-33, p. 12.) 



Ascospore somewhat fleshy or waxy, immersed then 

 erumpent, plane, round or oblong, shortly and irregularly 

 marginate; asci cylindric-clavate ; spores 1 or more in an 

 aseus, longish, hyaline or pale olive brown, muriform, paren- 

 chymatous, many-celled ; paraphyses slender, septate. 



Melittosporium, Corda, Icon. Fung., ii. p. 38 ; Sacc, Syll., 

 viii. p. 704. 



Stictis, Cke., Hdbk., p. 735; Phil., Brit. Disc, p. 382. 



Keadily distinguished by the parenchymatous, muriform, 

 many-celled spores. 



Melittosporium lichenicolum. Mass. (fig. 33, 

 p. 12.) 



Ascophore immersed at first in the substance of the host, 

 erumpent, becoming expanded and quite plane, with a slightly 

 raised, minutely torn margin, which like the flat disc is 

 blackish ; asci elliptic-clavate, almost sessile, base rather 

 broad; spores four in an ascus, broadly elliptical, 5-septate 

 and muriform, pale olive-brown, 30-35 x 12-14 jx ; para- 

 physes numerous, filiform, tip slightly thickened, colourless. 



Stictis lichenicola, Mont., Ann. Sci. Nat., 1836, v. p. 281, 

 tab. xiii. f. 3; Phil., Brit. Disc, f. 382; Cke., Hdbk., 

 p. 735. 



Urceolaria scruposa, var. parasitica, Sommf., Suppl. Fl. Lapp., 

 1826, p. 100. 



Parasitic on the thallus of Cladonia pyxidata and also on 

 other species of the same genus. 



Superficially resembling a minute Patellaria when fully 

 expanded. This species is by some authors considered as 

 a lichen — Eehm, Krypt.-Fh, Disc, p. 173 — but I think it is 

 a genuine fungus; the disc when young is covered with a 

 layer of amorphous particles of oxalate of lime, as in so 

 many of the Sticteae. 



Melittosporium pteridinum. Sacc, Syll., n. 2890. 

 (figs. 31,32, p. 12.) 



Scattered, slightly immersed, circular or elongated, irre- 

 gular in outline, open; disc pallid brown, not deeply de- 



