168 E. A. Vainio, Pyrenocarpeae. 



gonidiis destituto constans. Apothecia recta, simplicia aut 

 confluentia, ostiolo mediano instructa. Paraphyses bene 

 evolutae aut raro obsoletae. Sporae fusiformes aut oblongae 

 aut ovoideo-oblongae ovoideaeve aut lacrymaeformes aut 

 bacillares aut aciculares, decolores, septis 1 — pluribus trans- 

 versim divisae. 



1. Thelopsis Nyl. 



Herb. Lich. Par. II (1855) n. 98, Ess. Nouv. Classif. Lich. Sec. 

 Mem. (Mem. S. I. Sc. Nat. Cherb. 1855) p. 194, 202, Exp. Pyrenoc. (1858) 

 p. 65; Th. Fr. Gen. Heterol. (1861) p. 106; Jatta Fl. It. Crypt. Lich. 

 (1911) p. 892; Zahlbr. Ascolich. (1903) p. 67 (excl. sp. sporis simpl. 

 et mural.). Verrucaria stirps Thelopsis Nyl. Lich. Paris (1896) p. 124. 

 Sychnogonia Koerb. Syst. Lich. Germ. (1855) p. 332. 



Thallus crustaceus, uniformis. Apothecia simplicia, 



gonidiis hymenialibus nullis. Perithecium rectum, ostiolo 



mediano. Gelatina hymenialis jodo reagens. Paraphyses 



bene evolutae, simplices. Ascus sporis numerosissimis. 



Sporae decolores, ellipsoideae aut oblongae, 3 — 1-septatae. 



Gonidia fa Trentepohlia praedita. 



Ab hoc genere distinguendae sunt Haplothelopsis Vain, {flaveola 

 Arn.), sporis simplicibus, et Sychnoblastia Vain, (inordinata Nyl.), sporis. 

 muralibus ab eo recedentes. 



1. Th. melathelia Nyl. 



Fl. 1864 p. 258, 1868 p. 348, Lich. Lapp. Or. (1866) p. 189, Enum. 

 Lich. Fret. Behr. (1888) p. 26; Norm. Spec. Loc. Nat. Norv. (1868) p. 

 368; Arn. Lich. Tirol XI (1873) p. 17, XXI (1880) p. 151, XXX (1897) 

 p. 38; Hue Addend. II (1888) p. 309; Jatta Fl. It. Crypt. Lich. p. 893; 

 A. Sm. Mon. Brit. Lich. (1911) p. 340. Sagedia (Sychnogonia) rugosa 

 Anzi Anal. Lich. Rar. It. Sup. (1868) p. 22 (secund. specim. orig. in herb. 

 Nyl.). Thelopsis rugosa Jatta 1. c. 



Exs. Arn. Lich. Exs. (1872) n. 515, (1873) n. 515 b. — Malme 

 Lich. Suec. Exs. XXII (1915) n. 541. 



Thallus modice incrassatus, subsquamuloso-diffractus r 

 muscos inaequaliter obtegens, at superficie sat aequali, 

 pallido-cinerascens aut subcinereus. Apothecia sparsa, ver- 

 rucas formantia tuberculoso-conicas vel rugoso-irregulares, 

 circ. 0.5 — 0.7 mm latas, basin versus dilatatas, nigras, opacas, 

 margine ostiolari leviter prominente aut interdum impresso, 



