320 PUNGUS-FLOEA. 



smooth, hyaline, oontimious, elliptical, 17-22 X 10-12 /jl; 

 paraphyses septate, clavate. 



On damp soil. The British specimens were communicated 

 by Mr. C. Crossland of Halifax, and were found growing on 

 a very thin layer of black dust that had settled on some pig- 

 iron in a foundry at Hebden Bridge, Yorka. 



Distinguished among the whitish species by the large size 

 of the ascophore, and the rather thin-walled, pale ochraoeous, 

 marginal hairs. 



Lachnea Woolhopeia. Phil., Brit. Disc, p. 215; 

 Sacc, Syll., viii. n. 752 ; Cke., Mycogr., fig. 404. 



Scattered, sessile, closed at first, then becoming nearly 

 plane, rather fleshy, 1-3 mm. across, disc pale grey, exter- 

 nally pilose, hairs in clusters, marginal ones largest, brown at 

 the base and becoming paler or almost colourless upwards--, 

 wall rather thin, ventricose and rather closely septate near 

 the base, then running out into long, slender points; 

 150-200 X 9-12 fx; cortex parenchymatous; asci cylindrical, 

 apex somewhat truncate, 8-spored ; spores obliquely 1-seriate, 

 smooth, hyaline, broadly elliptical, ends obtuse, usually 

 1-guttulate, 17-21 x 9-12 /x; paraphyses slender, septate, 

 slightly clavate. 



Peziza Woolhopeia, Cke. & Phil., Grev., vi. p. 75. 



On burnt gi'ound, charcoal beds, &c. 



Intermediate between L. cretea and L. erinacea, the mar- 

 ginal hairs being much stouter and darker in colour than the 

 first named, whereas they are much smaller and paler thaa 

 in the latter. The ascophore also is smaller in the present 

 species than in either of those with which it is compared. 



Type specimen examined. 



Lachnea gregaria. Phil., Brit. Disc, p. 214; Sacc, 

 Syll., viii. n. 685. 



Gregarious, sessile, at first globose and closed, then hemi- 

 spherical and the margin incurved, finally expanded, often 

 irregular or wavy; disc brown then greyish, externally 

 brown, and densely covered with rigid, tapering, septate, 

 slightly thick-walled, straight, brown hairs, which are 

 longest, and in dense clusters at the margin, 100-400 x 

 7-8 fx, these spinulose hairs gradually pass into', brown sep- 



