Psilonia.] FUNGI. 353 



by the converging twisted flocci of the mycetium* — Name, 

 ^i\ori a spot. 



1. P. gilva, {red-grey Psilonici) ; tufts suhrotund compact 

 reddish-grey inclining to brown, flocci intricate twisted mostly 

 simple, covering the variously shaped sporidia. Fr. Syst. 3Iyc. 

 V. 3. p. 431. — Conoplea gilva, Pers. Myc. Ear. \. p. 12. 



Of the flat surface of a felled o..k. Southwiek, Norths. Rev. M, 



.7. Berheley Masses 1 —2 lines broad, subinnate ; flocci very fine, 



curiously twisted together, the external surface finely tomentose, from 

 their free apices. Sporidia, in my specimens, as in those described by 

 Sommerfelt, fusiform, though sometimes globose or oval. They are 

 often collected about the apices of the filaments, being, 1 suppose, washed 

 tip by rain. 



SlJBORDKiiIV. CoNJOiNiYCETES (/cowr, dusl, and (J.v'/.rtg,'dfu7igns.) 

 — Sporidici produced beneath the epidermis of plants or loithin the 

 matrix, naked, {icithout any hymenium, perithecium, peridium, 

 asci, or true sporidijisrous flocci). f 



* I take this opportunity of describing two or three productions, which 

 are refVrrible to Psilouia, when defined so as fo include /''. Buxi. but not as 

 limited above. The three first have the habit of that plant and of Tiihercidaria 

 ci/iafa. All). & Schwein. ( Vohitella, Fr. ), but they are not erumpent, and 

 therefore cannot be placed in the last named genus. It is possible they may 

 be imperfect Fusisporia, but they are too interesting to pass by entirely 

 unnoticed. I shall refer them, then, but only provisionally, to Psilonia. 



a. P. setosa. Berk, (bristhj Psilonia) ; quite sessile white, mass of sporidia 

 suiTOunded by and mixed with erect elongated bristles — ylL. setosa, Grev. 

 Sc. Crypt. Fl. t. 268./. 2. Fr. Syst. Myc. v. 3. p. 220. 



On wood, stems of lierbaceous i)lants, &c. Api>in. Capt. Carmichael. — 

 This certainly is not a true JEgerita, as defined by Fries ; indeed the mass of 

 sporidia is not beset with bristles, but the bristles spring from the base and 

 penetrate the whole mass. Sporidia globose and fusiform. 



b. P. r6sea. Berk, (rose-coloured Psilonia) ; quite sessile wliitisli or bright 

 rose-coloured, mass of sporidia surrounded by and mixed with erect elongated 

 bristles. 



On Potatoes. Winter and Spring. Apethorpe, King's Cliffe, Norths, 



liev. M. J. Berkeley Sporidia elliptic or oblong, larger and slightly curved. 



Bristles sharp-pointed, septate. There is a sort of stroma, probably formed 

 from abortive bristles. 



C. P. /iyacint/i6ru»i. Berk, (white slipitate Psilonia) ; very minute white 

 very shortly but di-itinctly stipitate, mass of sporidia sfuroumlod by bristles. 



On hyacinths in glasses nourished by «ater only. King's C'lilVe, Norths. 

 Rev. M. J. Berkeley. 



d. P. densn, l^'vk. (condensed Psihniit) ; S('>'^ilo h(MiiispluM-ical, flocci con- 

 densed dicliotonious, sporidia at loiii^^tli hjiig fii>ilbrm obscurely septate. 



On Potatoes when «juite soft and juicy within. Apetbor|»e, Norths. 7?(f. 

 M. J. Berkeley — This plimt, though at first siyht very ditferpiit, appears wlieii 

 compared with P. rosea to be allied, the stroma being more developed and 

 consisting distinctly of dicholonious erect llocci. The masses are 1^ line 

 broad, having niurii tin- habit of IVriiiht, brownish at the base within, tbi-ii 

 dirty-white, outer stiatuni of sporidia pure white ; this with agf is rrddish- 

 brown and the sporidia, which at first were oblong, are much t-Iongatcd, 

 blightly curveil, more acute ami obscurely septate. 



f In a few species there is a sort of receptacle, wliich liowever is innate and 

 BO differs from any thing analogous in Ilt/phomycctcM, and in the genus Ailiidium 



2 A 



