99 



Phyllodoce coerulea (L.) Gren. & Godr. (Figs. 15—17.) 



Phyllodoce taxifolia Salisb. Bryanthus coendeus (L.) Dippel. 



Warming, 1885, p. 20; idem, 1887, p. 109. Borgesen, 1895, 

 pp. 234— 35. Ambronn, 1890, p. 71. 0. G. Petersen, 1901, p. 80. 

 KiHLMAN, 1890, p. 232. 



I have had specimens for investigation from the following 

 localities: — West Greenland: Sukkertoppen (July 5, 1884, Th. 

 Holm); Tatsip-ata (July 15, 1884, Th. Holm); loc. ign. (July 20, 

 1884, S.Hansen). East Greenland: loc. ign. (Aug. 1892), Dron- 

 ning Louises 0. Norway: (Finmark) Bosekop (1885, E. W.) ; 

 (Dovre) Vaarstien (July 13, E. W.) ; Storlien (July 20, 1894, 

 F. Borgesen); Lille Elvedal (July 11, 1887). [Sweden: Härje- 

 dalenj. 



The leaf is rounded, 

 triangular in transverse sec- 

 tion, and furnished with two 

 furrows, one on either side 

 of a central ridge, in which 

 furrows the stomata occur. 

 The epidermis outside the 

 furrows is very much thick- 

 ened and has no mucilaginous 

 inner walls like those in Loise- 

 leuria and the lateral walls 

 are roundly angular; in a few 

 cases chlorophyll grains occur 

 in this part of the epidermis 

 (LiDFORss, p. 75). in the fur- 

 rows the epidermis is thin and has very prominent stomata 

 which are rather thickly covered with two kinds of hairs — 

 unicellular bristles , and multicellular, glandular hairs. The 

 stomata are placed obliquely to the longitudinal axis of the 

 leaf, as in the case of cricoid leaves with furrows. 



7* 



Fig. 15. Phyllodoce coerulea. 



The leaf. 1, Epidermis of the outer surface. 



2, Stoma. (7, East Greenland; 2, West 



Greenland.) (H. E. P.) 



