224 E. A. Vainio, Pyrenocarpeae. 



[specimina „paraphysibus creberrimis crassisque" instructa (Minks 

 1. c. p. 7, hb. Nyl. n. 4249) hue non pertinent]. Sporae 8:nae, 

 polystichae, pyriformi-ovoideae, apicibus rotundatis, saepe ad 

 septum secundum leviter constrictae, loculis haud lenticularibus, 

 membrana sat tenui, strato gelatinoso haud indutae, jodo non 

 reagentes. Hyphae fuscae e basi perithecii excrescentes parcae, 

 crebre septatae, crass. O.004 — O.oos mm. Gonidia desunt. Pycnidia 

 conceptaculo hemisphaerico, fusco, dimidiato, lat. O.130 — O.100 mm, 

 tenui, plectenparenchymatico (perithecio simili), fissura difformi 

 aperiente. Sterigmata brevissima. Stylosporae (macroconidia) 

 decolores, ellipsoideae, apicibus rotundatis, lateribus cylindricis, 

 vacuolo centrali, guttulam oleosam in apicibus ambobus conti- 

 nentes, long. O.003, crass. O.0015 mm. „Stylosporae", in n. 4300 in 

 herb. Nyl. delineatae, fusiformes et leviter arcuatae, apicibus 

 acutis, ex analogia potius sunt microconidia („spermatia"). 



Obs. Mycoporum ptelaeodes var. submiserrimum Vain. (Adj. Lich. 

 Lapp. II, 1883, p. 200), sporis long. O.ou — O.ois, crass. O.005— O.oos mm, 

 submuralibus, septis transversis vulgo 4, apotheciis saepe confluenti- 

 bus instructa, est forma optime evoluta hujus speciei, in typo Acha- 

 riano autem, a Nyl. descripto, sporae submurales, septis transversis 

 3, long. O.012 — O.016 mm. 



2. C. major (Nyl.) Vain. 



Mycoporum ptelaeodes f. major Nyl. in Norrl. Ber. Torn. Lappm. 

 (1873) p. 344. 



Exs. Anzi Lich. Rar. Langob. XII (1866) n. 470 b. 



Apothecia sparsa, simplicia haud confluentia, verrucas 

 formantia subhemisphaericas aut leviter ellipticas, circ. 

 O.240 — O.200 mm latas, nigricantes. Perithecium fuscescens, 

 dimidiatum, vulgo epidermide substrati velatum, hyphis fuscis 

 e basi excrescentibus haud abundantibus. Sporae decolores, 

 submurales, septis transversis 4 — 3, septo uno longitudinali 

 in loculo apicis crassioris secundo primove, long. 0. 015 —O.021, 

 crass. O.007 — O.oos mm. 



Distr. Ad corticem Betulae prope Kaaresuanto in Lap- 

 ponia Enontekiensi (J. P. Norrlin). 



Apotheciis multo majoribus, sparsis, simplicibus a C. ptelaeode 

 bene differt. — ^ Apothecia epidermide substrati velata aut denu- 

 data, opaca. Perithecium tenue, plectenparenchymaticum, cellulis 

 subglobosis, O.006 mm latis, rima irregulari aperientia, hyphis 

 fuscis e basi excrescentibus O.006 mm crassis, crebre constricte 



