I92I. No. 7. STUDIES O.N THE LICHEX FLORA OF NORWAY. 185 



ovales, in ascis angustis saepe uniserialiter dispositae, 7.4 — 9.2 [j. longae, 

 5 — 5.8 [J- crassae. 



React. Hymenium J e caeruleo sordide obscure fuscescens, apices 

 ascorum solum subpersistenter colorantur, et earn ob causam Hymenium 

 parte exteriore stratum J persistenter caerulescentem coloratum ostendit. 

 Hypothecium proprium J dilute, sed persistenter caerulescens. 



The upper part of the 'cortex infrahypothecialis' is usually of a slightly 

 darker colour than the hypothecium, otherwise the two strata are not well 

 set off from each other. The final J colour of the hymenium is rather 

 dark, on thick sections the colour will sometimes appear persistently blue, 

 in order to obtain correct observations thin sections are quite necessary in 

 this species. A good section will show the following J colours: An almost 

 persistent blue of the tips of the asci, a reddish-brown colour of the lower 

 hymenium, a faint persistent blue of the hypothecium verum, and a yellow- 

 ish- or reddish-brown of the cortex infrahypothecialis. 



Apothecia are common in our country. 



4. Cetraria normörica Gunnerus. 



Map XIII, I. 



Lichen jwnuöricus Gun. F^l. norv. II p. 123, tab. II fig. 9 — -14. 



Syn. Paruielia coniiculata A. L. Sm. Brit. Lieh. I p. 124, ubi syn. 



Cetraria /risti^ (W^eb.I autorum. 



Busk. Hallingskarvet: Follaskaret (B. L.). 



Aiistagd. Valle: Hekfjell (M. N. Bl.), Byklum: IMeien (B. L.). Vestagd. 

 Kristianssand (Ahnfelt). 



Hord. Moster (H.), Fusa: Strandvik (Lillef.), Sefteland: Møsnuken 

 (B. L.l, Thurø (B. L.l, Blaamanden (Friele), Fløien (B. L.), Granvin: Smor- 

 eggen (H.), Ullensvang (Somrft.I, Hardangervidda: Haarteignuten summit 

 (H.), Voss (M. N. Bl.I: Lonehorgje (B. L.), Finse (B. L.l. Sogn. Stryn: Vide- 

 sæter (Jebe), Filefjell (M. N. Bl.), Floro (Kiær), Rugsund (Myrin), Nordfjord: 

 BedumsQell (Kiær). Mere. Molde (Kindb.), Aalesund (Th. Fr.), Stigtjell 

 (Blomb.), Sundalsoren (Scheutz); 'in rupibus normöriae passim, mihi a 

 V. D. Hil. Hag. Kjempe . . . missus'. (Gun. Fl. norv. II p. 123). 



Hed. Tron (Torss.), Hummelfjell (Resv. -Holms.). Dpi. Harbakken 

 (Th. Fr.), Jerkin (Baur), Torpen: Synfjell (M. N. Bl.). 



Sortr. Trondhjem: Graakallen (Kindt), Hittern (Norm.). Nordtr. Stjor- 

 dalen (Somrft.), Haftorstøtten (Hulting), Rorvik: Nærø (Norm.), Namsos 

 (Malmgr.). 



Xordl. Dunderlandsdalen: Kjærringfjell (Wbg.), Torghatten (Baur), 

 Rødø: Norske Løve (Norm.), Rodø (Somrft.), Bodø (Hoch), Saltdalen 

 (Somrft.), Steigen: Laskestad (Norm.), and Prestkontind (Norm.), Lofoten: 

 Svolværgjeita (Norm.), and Store MoUa (Norm.); Melbo (Norm.). 



