26 E. A. Vainio, Pyrenocarpeae. 



(„long. O.016 — 0.025, crass. O.oot — O.oio mm" observante Nyl. in 

 specim. e Torr-Mjolo). Conidangia incognita (indicationes de 

 sterigmatibus in Mull. Arg. Princ. Class. Lich. p. 73 erroneae 

 sint). Stratum corticale superius circ. O.030 — O.oso mm crassum, 

 plectenparenchymaticum, leptodermaticum, cavitatibus cellularum 

 0.003 — 0.008 mm latis. Stratum medullare hyphis in cellulas 

 rotundatas O.009 — O.007 mm latas leptodermaticas divisis, praeser- 

 tim subverticalibus, parce conglutinatis (partim interstitiis plus 

 minusve angustis disjunctis), parce etiam angustioribus, O.003 — 

 O.004 mm crassis, cellulis oblongis aut subellipsoideis. Stratum 

 corticale inferius haud distinctum. 



Obs. Endocarpon tephroides Ach., Meth. Lich. (1803) p. 129, in 

 Allvarden Oelandiae in Suecia a Vestring lectum, sec. specim. orig. 

 in herb. Ach. ad Dermatocarpon daedaleum (Krempelh.) pertinet. — 

 Pyrenula microciba Ach., Lich. Univ. (1810) p. 315, Syn. Lich. (1814) p. 

 122, Berl. Magaz. 1814 p. 16, tab. I f. 15, hue ducta (Fr. Lich. Eur. Ref. 

 p. 413), ad D. cinereum (Pers.) Th. Fr. non pertinet. 



Subtrib. 2. Hyalosporae (Sacc.) Vain. 



Thallus stroma gonidiosum crustaceum formans aut 

 e mycelio constans gonidiis destitute Apothecia recta, 

 simplicia, ostiolo mediano instructa. Periphyses in nucleo 

 circa ostiolum evolutae. Paraphyses in gelatinam diffluxae. 

 Sporae ellipsoideae oblongaeve aut raro globosae, decolores, 

 simplices. 



1. Verrucaria (Pers.) Th. Fr. 



Lich. Arct. (1860) p. 267; Gen. Heterol. (1861) p. 109; Koerb. 

 Parerg. Lich. 4 Lief. (1863) p. 359; Zahlbr. Ascol. (1903) p. 53, 54; 

 A. Sm. Mon. Brit. Lich. II (1911) p. 276; Jatta Fl. It. Crypt. Lich. 

 p. 803. 



Thallus crustaceus, uniformis. Apothecia simplicia. 

 Paraphyses in gelatinam dissolutae. Gelatina hymenialis 

 jodo reagens. Sporae 8:nae, simplices, ellipsoideae oblon- 

 gaeve, decolores. Gonidia pleurococcoidea (Coccobotrys ver- 

 rucariae Chodat, Mon. Algu. Cult., 1913, p. 218 in Mat. Fl. 

 Crypt. Suiss. IV 2) aut raro dactylococcoidea. 



Obs. Verrucaria melasperma Nyl., Fl. 1865 p. 357, „sporis sim- 

 plicibus fuscis et paraphysibus parcis" instructa, sec. specim. orig. est 

 Fungus. V. phaeosperma Am. et V. interlatens Am. item sporis obscu- 

 ratis descripta, exactius non sunt cognita. 



