E. WAINIO, LICHENES PROPE PITLEKAI COLLECTI. 143 



Beringsm. (1887) p. 524; Tuck., Syn. North Am. Lieh. II 

 (1888) p. 68; Deichm. Branth et Groenl., Grgenl. Lieh. 

 (1888) ]). 499; Arn., Lieh. Fragm. XXIX Miquelon (1888) 

 p. 16, XXXV Neufundl. (1896) p. 27. 



Var. diducens (Nyl.) Th. Fr., Lieh. Scand. II (1874) 

 p. 499, On Lieh. Pol. Exp. (1879) p. 362. L. diducens Nyl., 

 Fl. 1865 p. 148. L. auriculata v. paupera Th. Fr., Lieh. 

 Spitsb. (1867) p. 39; Nyl., Enum. Lieh. Fret. Behr. (1888) 

 p. 12, 35 (58). 



Thallus evanescens aut tantum infra apothecia evolu- 

 tus, KHO non reagens, jodo passim dilutissime caerulescens. 

 Apothecia disco piano aut rarius demum convexo, atro, nu- 

 do, margine mediocri aut demum attenuate. Excipulum 

 extus fusco- aut violaseenti-fuligineum, intus dilute et pallide 

 violaeeo-fuscescens, KHO distinctius violascens et Solutio- 

 nen! luteam effundens, ex hyphis irregulariter contextis for- 

 matum. Hypothecium fuseonigrum aut dilute fuseeseens 

 aut inferne albidum pallidumve, KHO non reagens, ex hy- 

 menio haud distincte limitatum. Hymenium jodo persi- 

 stenter caerulescens. Paraphyses mediocres, crass. 0,001 5 — 

 0,002 millim., apiee leviter incrassatae, sat arete cohaerentes, 

 gelatina parea. Epithecium aeruginoso-fuligineum, KHO 

 non reagens. Sporae 8:nae, distiehae, ellipsoideae, apici- 

 bus rotundato-obtusis, long. 0,008 — 0,009, crass. 0,004 — 0,005 

 millim. 



Ad lapides et saxa granitica et gneissacea in penin.sula 

 Jinretlen et prope pagum Pitlekai. Fert. 



F. subpruinosa Wain. 



Thallus evanescens dispersusque, sordide albidus, KHO 

 non reagens, jodo partim caerulescens, hypothallo indistincto. 

 Apothecia 1 — 0,7 millim. lata, approximata, thallo substra- 

 toque adnata, basi leviter eonstricta, sat tenuia, disco piano, 

 tenuissime cinereo-pruinoso, ma,rgine sat tenui, primum le- 

 viter, demum parum elevato, nigro, nudo, vulgo integro. 

 Excipulum extus violaceo-fuscescenti-fuligineum, intus dilute 

 violaeeo-fuscescenti-pallidum, KHO distinctius violascens, 

 ex hyphis irregulariter contextis formatum, jodo caerulescens. 

 Hypothecium fuseeseens, inferne anguste albidum, KHO 

 non reagens, superne ex hyphis ereetis formatum. Hymeni- 

 um cire. 0,040 millim. crassum, jodo persistenter caerulescens. 

 Epithecium inaequale, aeruginoso-fuligineum, KHO non re- 



