^yrenomycetea?, Sphseriaccae, Phseodidym», Tichothecium. 725 



substantia molliuscula, viridi-brunnea farctis ; ascis breviter clava- 

 tis ; sporidiis 6-3, soleasforraibus, bicellularibus, cellula superiore 

 majore, viridi-fuscis, 8-11=; 3-4. 



Hab. ir. thallo Urceolariae scruposfe in Germania. 



6. Tichothecium calcaricolum (Mudd) Arnold Lichenolog. Ausfl. XI, 2966 

 p. 52i et Wint. in Hedw. J886, p. 16, Microthelia calcaricola 

 Mudd Manual p. 306. — Peritheciis media raagnitudine irregu- 

 lariter sparsis, sessilibus vel basi imraersis, globosis, poro subma- 

 gno pertusis, atris; ascis clavato-subventricosis, 8-sporis; spori- 

 diis eliiptico-oblongis, bicellularibus, fuscis, r9-20 3 6; paraphysi- 

 bus gelatinosis. 



Hab. in thallo Aspiciliae calcareas, A. cinereae et A. 

 gibbo.sae in Germaoia et Britannia. — Sec. Arnold sporidia 15- 

 18 /... tantum looga sunt. — Var. Sendtneri Arnold Lichenol. Ausfl. 

 XI, p. 37: peritheciis liemisphaericis, prominuiis, atris; sporidiis 

 utrinque obtusis, fuscis, bicellularibus, 15-18 ^ Q-^, octonis. In tliallo 

 Poiyblastiae Sendtneri in Gerraania. 



7. Tichothecium gemmiferum (Tayl.) Korb. Parerga Lichen. p. 468, 2967 

 et Wint. in Hedw. 1886, pag. 16. Verrucaria gemmiferaHdkyXor 



in Mackay, Flora hibern. II, p. 95, Microihelia propinqua Korb. 

 Sjstem. p. 374. — Peiitheciis sparsis, iramersis, minutissimis, glo- 

 bosis, vertice umbilicato, demum collapso, poro siniplici pertusis, 

 opace atris, 0,1 mm. diam.; ascis clavatis, crasse tunicatis, 8-spo- 

 ris, 30-36 »10-12; sporidiis ellipticis vel elliptico-oblongis, obtusis 

 bicelluiaribus, pjeruraque haud vel perparum constrictis, fuscis, 8- 

 12^3-4; paraphysibus coalitis. 



Hab. in thallo crustaceo lichenum variorum in Germania. 



8. Tichothecium ComplanataB (Arnold) Wint. in Hedw. 1888, p. 17, 2%8 

 Endococcus Complanatce Arnold Lichenol. Ausfl. in Tirol. V, p, 13. 



— Peritheciis rainutissiinis, punctiformibus, parum prominulis, atris ; 

 sporidiis octonis, oblongis, fusiformibus, utrinque plus minus at- 

 tenuatis, rectis vel parura curvatis, bicellularibus, fuscis, 15-17:5 

 4-5; paraphysibus nullis. 



Hab. in thallo LecanoraB complanatae in Gormania. 



9. Tichothecium squamarioides (Mudd) Wint. in Hedw. 1886, p. 17, 2969 

 Sphceria squamarioides Mudd Manual of Brit. Lich. p. 130, Po- 

 lycoccMm squamavioides Arnold Lichenol. Fragra. XVI, p. 29. 



— Peritheciis aggregatis, acervulos minutos forraantibus, puncti- 

 formibus, atris, nucleo albo-cinereo; ascis elongato-oblongis vel 

 oblongo-subclavatis, 8-sporis; paraphysibus indistincte diffluenti- 



