LAGERHEIMA PATELLEA. 97 



Lagerheixna sphaerospora, Sacc., Syll., x. n. 4671. 

 (figs. 51-54, p. 91.) 



Scattered or crowded, applanate, indistinctly marginate, 

 thin, circular or slightly elongated, 1-2 mm. across ; ex- 

 cipulum consisting of interwoven hyphae of a dingy olive 

 colour ; asci cylindrical, apex rounded, base narrowed, 8- 

 spored; spores uniseriate, typically broadly elliptical, ends 

 obtuse, smooth, continuous, clear brown, sometimes 1-guttu- 

 late, 9-12 x 7-8 /JL ; paraphyses numerous, filiform. 



Patellaria sphaerospora, B. & C., in Cooke's Disc. U. States, 

 p. 26 (name only) ; Phil., Grev., xviii. p. 85. 



On decaying wood. 



Type specimen examined. 



In many asci the spores are all alike in form, as described 

 above ; in others, again, some of the spores are normal, others 

 globose, angularly globose or piriform. 



PATELLEA. Fries, (figs. 38, 39, p. 91.) 



Ascophore erumpent, soon quite superficial, sessile, circular, 

 patellate, coriaceous, contracting more or less when dry, 

 blackish ; asci oylindric-clavate, 8-spored ; spores elliptic- 

 oblong, hyaline, 1-septate ; paraphyses present. 



Patellea, Fries, Syst. Myc., ii. p. 149, emended by Saccardo 

 in Consp. Gen. Disc., p. 67 ; Sacc., Syll., viii. p. 783. 



Patellaria, of authors. 



Distinguished by the 1-septate, hyaline spores. 



Patellea pallida. Mass. (figs. 38-39, p. 91.) 

 Gregarious, sessile, pallid, discoid, plane, more or less 

 contracted and concave when dry, |-f mm. across ; excipulum 

 parenchymatous, cells 8-11 /t diameter, running out into 

 parallel septate hyphae at the margin, these become thinner 

 inwards and gradually pass into typical paraphyses ; brown, 

 septate hyphae spring from the basal cells of the excipulum, 

 and attach the fungus to its matrix; asci clavate, apex 

 narrowed, 8-spored ; spores narrowly cylindrical, ends rather 

 narrowed, often slightly curved, hyaline, for a long time 

 continuous, then 1-septate, 12-14 x 2-3 p, ; paraphyses 

 cylindrical, about 2 p thick, hyaline. 



