Vascular Plants of West Greenland. 3G3 



roots with the fine dust which fills up all the interstices. The most 

 characteristic of all was a Bog -Whortleberry, Mijrtilhis uliginosa v. 

 pubescens, which formed a real bush on a gneiss-ledge. It had long 

 year's-shoots, and large, broad leaves (see Figs. 9 and 14) as in 

 a Danish bog; it had also flowered, but there was no chance of its 

 setting a single fruit, although its low-growing relative, var. micro- 

 рИцПши, out upon the heath had already ripened its berries. 



5. List of the Vascular Plants of the district. 



Polypodiaceae. 



1. Aspidium fragrans (L.) Sw. Fairly common in the in- 

 terior of the fjords in rock-crevices and on rock-ledges in the gneiss 

 district. It has also been observed there upon the ground, between 

 stones — also on basalt — , to a height of more than 700 metres 

 above sea-level. 



As is the case with other Arctic ferns the old fronds persist for 

 several years. In sunny, favourable localities the fronds reach a 

 length of as much as 25 cm. and are closely set with scales; in shady 

 places, for instance in crevices, forms occur with thinner and less 

 rigid fronds and more sparsely covered with scales. 



2. Gystopteris fragilis (L.) Bernh. Found in favourable 

 localities on sunny and suitably damp rocks; is not rare in the in- 

 terior of the fjords; has not been observed on out-standing situations. 



As is the case everywhere else, its leaves vary considerably, 

 from those quite short and slightly divided to those which are long 

 and several times divided. 



3. Wood si a ilvensis(L.) R. Br. a, rufidula (michx.) Koch. 

 In similar localities as the above. /9, alpin a (Bolton) Asch. & Graebn. 

 More common than a. 



4. Wo ods i a glabella R. Br. Rare; was observed only at 



Lakse Fjord Qingua on suitably exposed gneiss rocks. There, in the 



most favourable localities, the fronds reached a length of as much as 



12 cm. 



Equisetaceae. 



5. Equisetum arvense L. Very common everywhere, especi- 

 ally along lake-margins, in bogs and on damp spots on heaths. At 

 Orpik a high flaccid from occurred as a dense undergrowth in the 

 willow copse. 



6. Equisetum v a r i e g a t u m Schleich. Along lake-margins 

 and in wet bogs. (Searched for in vain at Prøven and in the interior 

 of Lakse Fjord). Amitsuarsuk: very rare. Ingnerit Fjord: fairly 

 common. Tartusaq and Sarfarssuit: common. Igdlorssuit: rare. 



24* 



