340 E. A. Vainio, Lecideales. 



Thallus verrucosus, verrucis convexis, vulgo rotundatis, lat. 

 0.2—0.4 (—0.7) mm, albido-cinerascentibus, supra hypothallum nigrum 

 crebre dispersis, apotheciis intermixtis. 



Distr. Ad rupem gabbroiticam in reg. subalp. montis Kivakka 

 in KKer. (Vain.). 



Facie externa subsimilis *Rh. eapetraeo. Thallus baud pruinosus, 

 KHO non reagens, medulla jodo caerulescente. Apothecia thallum 

 baud aut parum superantia, lat. 0.4 (— O.3) mm, disco piano, baud papil- 

 lato, margine tenui, integro, baud aut leviter prominente. Epitbecium 

 rubricoso-fuligineum. Sporae 1-septatae, primum decoloratae, demum 

 obscuratae, long. circ. O.022— O.024, crass. O.012— O.ou mm, strato gelatinoso 

 crasso indutae. 



F. recedens Vain, L. atroalbicans f. recedens Vain. Adj. Licb. 

 Lapp. II (1883) p. 131. 



Corticola. Tballus areolis vulgo convexis, saepe verrucaeformi- 

 bus, contiguis, cervinis, modice incrassatis. Apothecia demum convexa, 

 vulgo immarginata. 



Distr. Ad corticem Betulae in regione Coniferarum montis 

 Pyhatunturi in Sodankyla in LKem. (Vain.). 



Thallus KHO non reagens, medulla jodo caerulescente. Exci- 

 pulum et hypotbecium rubricoso-fuligineum. Epitbecium sat dilute 

 rubricosum. Hymenium circ. O.iio mm crassum, jodo persistenter cae- 

 rulescens. Sporae 1-septatae, decoloratae, long. circ. O.025— O.030, crass. 

 0.0:0—0.011 mm, interdum strato gelatinoso crasso indutae. 



F. rhododendri (Arn.) Vain. Catocarpus polijcarpus t rhododendri 

 Arn. Lich. Exs. (1873) n. 559 a, b, (1875) c. 



Thallus obscure cinerascens, areolis planis, vulgo contiguis. 

 Apothecia plana. Sporae demum obscuratae. 



Distr. Ad corticem Betulae in Alkkula in Ob. (E. Nylander). 

 Ad saepimenta lignea in Tuusula in N. (Vain.) et in Asikkala in Ta. 

 (J. P. Norrlin), ad pontes ligneos in pag. Lieksa in Kb. (Vain.) et ad 

 Templum in Kuhmo in OKaj. (Vain.l 



Thallus jodo caerulescens, KHO non reagens. Hypotbecium 

 fuscescens, KHO non reagens. Epitbecium subfuscescens, KHO 

 rubricosum. Sporae 1-septatae, decoloratae deindeque nigricantes, 

 long. 0.018—0.024, crass. O.ooo— O.oio mm. — Ab Arn. in Lich. Tirol XV 

 (1876) p. 385 n. 33 (conf. XXI p. 142) „sporis incoloribus, olivaceis, 

 fuscis, 0.027—0.034 mm longis, O.012— O.015 mm crassis" descripta est (ad 

 corticem Rhododendri ferruginei in Tirolia collecta). 



