332 E. A. Vainio, Lecideales. 



aut subglobosa, diam. O.oos — O.ooe mm, membrana sat tenui, saepe 

 autosporas nonnullas continentia. 



32. Rh. cinereonigrum Vain. (n. sp.). 



Thallus crustaceus, uniformis, verrucosus, verrucis 

 majusculis, cinerascentibus, baud pruinosis, esorediatis, 

 demum verruculoso-inaequalibus, intus albis et KHO lute- 

 scentibus, jodo non reagentibus, hypothallo nigricante. 

 Apothecia sat parva aut fere mediocria, areolis thalli im- 

 mixta aut latere iis connata, thallum baud superantia, nigra, 

 nuda, disco piano, aut demum depresso-convexo, margine 

 sat tenui aut fere modice incrassato, persistente. Perithe- 

 cium KHO non reagens, Epithecium rubricoso-fuligineum. 

 Sporae 8:nae, nigricantes aut fusco-nigricantes, long. O.028 — 

 0.035, crass. O.oh — O.oi? mm, 1-septatae. 



Distr. Ad saxum diabasicum in Kuusto in Tammela in 

 Ta. (A. Kullhem). 



Verrucis thalli majoribus, demum inaequalibus, apotheciis 

 baud prominentibus, et colore epithecii sporarumque a Rh. Co- 

 pelandi differt. Thallus crassus, verrucis 1.6 — 1 ( — O.5) mm latis, 

 depresso-convexis, opacis, sat obscure cinerascentibus, dispersis, 

 sat laxe affixis, saepe sat rotundatis, medulla KHO demum ful- 

 vescente, hypothallo demum evanescente. Apothecia lat. I.2 — O.7 

 mm, dispersa. Perithecium rubricoso-fuligineum. Hymenium circ. 

 0.150—0.160 mm crassum. Epithecium KHO pulchrius rubricosum. 

 Hypothecium rubricosum aut fuscescens, KHO non reagens. 

 Sporae medio constrictae, strato gelatinoso modice incrassato. 



33. Rh. Hochstetteri (Koerb.) Vain. 



Catocarpus Hochstetteri Koerb. Parerg. Lich. 3 Lief. (1861) p. 195 

 (videas p. 333). Lecidea Vain. Adj. Lich. Lapp. II (1883) p. 619, Lich. 

 Exp. Vegae Pitlekai (1909) p. 115. L. atroalba var. chlorospora Nyl. 

 Obs. Lich. Holm. (N. Bot. Not. 1853) p. 97 (6), Lich. Scand. (1861) p. 233 

 f. 10 (sec. specim. orig. n. 10047 et 10060 in herb. Nyl.), nomen ineptum. 

 Buellia chlorospora Hellb. Ner. Laffl. (1871) p. 104. Lecidea colludens 

 Nyl. Fl. 1870 p. 38. L. atroalba var. applanata Fr. Summ. Veg. Scand. 

 (1846) p. 116 p.p. (videas p. 335), baud L. applanata Chev. Fl. Gen. Par. 

 I (1826) p. 565. Rhizocarpon applanatum Th. Fr. Lich. Scand. II (1874) 

 p. 618. Catocarpus applanatus Arn. Lich. Tirol XX (1879) p. 373, XXIII 

 (1887) p. 101. 



