lyo 



HF.RNT I.YNfJF. M.-X. Kl. 



Norwegi.iii naines: Slcinnmsc (Loml, Slcinaniosr- anrl Letaremose 

 (Granvin). Tlicse names arc surely used in oil ur provinces. The 'Letare- 

 mose' also comprises Parmelia sulcata, I\ <»iif>lial()(lf's and in part P. phy- 

 Sixfcs which aie used lof^ether with P. saxalilis for dyeing purposes and 

 not always sepaialcd iVoin this species Ijy the people. In Granvin /'. /^//v- 

 sodcs is supposed to he a less valuahle colouring plant. 



f. caesia Nyl. 



Op/. Ringchni: .Stulshroen {V>. L.). 



Nordl. Lf)dingen (Magn.). Fiiiiii. Alten: Öskarnes (B. L.l, Sakkobani 

 (H. L.), and Rautas\ai-i-e (15. L.l; I lainniertest (Tii. Fr.I. 



Caesio-pruinose P. saxntilis plants are by far more rare than the cor- 

 responding modification of P. oiiiplialodcs. One fertile sp. from Kaafjord 

 in Alten: hymenium 80 85 \j., spores 11 — 14.5x8 — 10.5 [J.. The h^-me- 

 nium is usuall}' highei" in P. saxatilis. 



f. centrifuga Norm, apud Tu. Fr. Lieh. Scand. p. 115. 



Growing on flat substratum and emorescent at the central part of the 

 thallus. Evidently a morbid and little significant forma. 



Høidalsmo (Norm.), Bosekop (Norm.), Store Raipas (B. L.), and Sko- 

 ganvarre (Norm.-vn). 



Âpotlircia (in typo) frequentia, magna, diam. 8 — 10, usque 15 mm. 

 Discus badius, nitidus, epruinosus, imperforatus, concavus; niargo isidiatus, 

 involutus, saepe radiatim ruptus; receptaculum + rugosum. Cortex recepta- 

 culi crassus (50 — 80 \j), incoloratus, hyphis sat distinctis, parte exteriore 

 saltum superficiel subperpcndicularibus formatus, in corticem interiorem tran- 

 siens, cortex inferior distinctus, 30—35 \l altus, hyphis crassis hypothecio 

 subperpendicularibus contextus. Gonidia infra corticem interiorem stratum 

 continuum formantia, infra corticem exteriorem paucioria vel interdum omnino 

 desunt. Ilvpothecium incoloratum vel dilute flavescens, 25 — 30 \l altum. 

 Hyuioiiiiui altum: 90 — no \x, strato incolorato tectum, non inspersum. 

 Paraphyses apice + obscure luteo-fuscescentes, apice non vel leviter solum 

 incrassatae, indi\'isae vel rarius breviter i-amosae. Asci hymenio parce 

 breviores, angusti (16 — 20 \x.] et tum sporas uniseriales continentes, vel 

 crassiores, (usque 25 \i) et tum sporas distichas continentes. Sporne late 

 ovales: 15 — 18.5x10 — 14.5, mediocriter, sed distincte limbatae. 



Medulla KOH e flavo sanguinea. HN'menium J sordide vinose colo- 

 ratur, apices ascorum solum persistenter vel subpersistenter caerulescentes. 



The rugae are always more or less scabrous or isidiose. The isidia 

 ma}' be very poorly developed, which is rarely the case in Norway — 

 such plants have been called f. imiinia Sch.aer. (e. g. by Harm and Lieh. 



