174 HF.RNT LYNGK. M.-X. Kl. 



exl( rior 50 80 y. crassus, parte cxteriori + ohscuratus, hyphae congluti- 

 natac et valde indistinctae, cortex interior incoloratus, 30 50 [a altus. 

 Gonidia iiifVa cortice interiori accuniulata, infra cortice cxteriori numerosa, 

 praeteixa in tota medulla dispersa. I lypothecium incoloratum vel dilutissime 

 flavescens, 18-25 1-'- I lyinciiiiiiii (iiigiisliiiii, 45 55 \)., strato amorphe 

 incolorato tectum, non inspersum. Paraphyses apice luteo-fuscescentes et 

 capitatae, arcte cohaerentes, vulgo indivisae, vel interdum + ramosae vel 

 etiam ramoso-connexae. Asci breves et crassi, 40 — 45>ci6 — 24 [v-, membrana 

 apice parce incrassata. Sporae ovales, apice rotundatae, pachydernmticae, 



12 18 >< 8 13 [7.. 



Pycnides rarae, iw'cnoconidia 8 [x. 



React. Thallus KOI 1 extus flavescens, intus e flavo rubescens. Hyme- 

 nium J flavo-fuscescens, asci caerulescentes, sed apice solum persistenter. 



The colour of the medulla varies: usually white, but occasionally yellow 

 or (morbid specimens?) reddish, this is especial!}' the case if the cortex 

 has been removed and the medulla exposed to the air. ' — Young thalli 

 have rather narrow, elongate and discrete laciniae, but the laciniae rapidly 

 grow out so as to form quite contiguous, often imbricate thalli. 



A peculiar form is found on large stones and at other prominent 

 places in the mountains, associated with Xanthoria lyclmca, Physcia tribacia, 

 and Gyrophorn arctica, and also at the strand, where birds like to rest. It 

 has a very thick rigid thallus and densel}' imbricate and little distinct laciniae. 

 It seems to me that a rich supply of food (Nitrogen from the birds) has 

 incited it to this growth (f. n'o/da (Havaas). 



37. Parmelia omphalodes (L.) Ach. 

 Map I, 2. 



0s//. Hvaler: Kirkøen (B. L.), Ovenøen (B. L.). Akcrsh. Kristiania: 

 Malmøen (B. L.), Nordmarken : Kroksund (B. L.). Vest/. Tjomø (B. L.), 

 Yasser (B. L.), Larvik (M. N. Bl.), Ula (B. L.), Svenor (Høeg), Fredriksvern 

 (Norm.). 



Tcleiii. Bolkesjø (Kiær). Aitsiagd. Lyngor very plentiful (B. L.), Trom- 

 øen (Jebe). Vcstagd. Kristianssand (B. L.), Hægeland (Sør.), Sogne: Hollen 

 (SøR.), Mandal: Risøbank (B. L.), and Skjernoen (B. L.). Rog. Rægefjord 

 (H.), Utsire (Nordh.): 



Hord. Moster (H.), Fitjar pluribi (Lid), Siggen (H.), Tysnessaata (H.), 

 Alversund (Kaal.), Megster (B. L.), Kalso (B. L.), Fusa (Lillef.), Bergen 

 (Friele), Hamre: Sjursæterfjell (Lid), Lygrefjorden (H.), Manger (H.), Gran- 

 vin: Aasene (H.), Hardangervidda: Drolstolgjelae (H.), and Haarteignuten 

 summit (H.). Sogu. Nordfjord: Loenvand (Jebe), and OJe (Jebe), Stat (H.), 

 Vaagsø (H.), Filefjell (M. N. Bl.). More. Merok (H.), Kristianssund (H.). 



' ZoPF Flechtenstofte p. 365. 



