8 
Bay p. 86; Hart, Brit. Pol. Exped. p. 143; Lge. Consp. Fl. Groenl. p. 189; 
Dusén, Ost-Gronl. p. 63; Nath., Spetsb. Karly. p. 39; Kurtz, Flora d. Tschukt- 
schenh. p. 482. FI. D.t. 2921, fig. 1. 
Fronds pinnate, pinnz roundish, lobed. Stalk below with a 
few scales, frond and rachis glabrous, about 5 cm. high. Small 
forms occasionally look like Asplenium viride, but are easily re- 
cognisable by the node on the stipes. 
Obs.: We hawe followed Trautvetter in combining these 
plants into one species, but we have chosen the oldest name 
»ilvensis« for this in stead of »hyperboreac. Numerous specimens 
in the Herbarium of the Botanical Museum at Copenhagen from 
Arctic localities have convinced us that they are connected by 
transition forms and that dwarf forms of a & @ only differ from 
y in the covering. 
a, Am.: Baffin Land, West Greenl. 60°—72° 48’ (), 
East Greenl. 60°—70° (!). As.: Chukches Land. 
6, Am.: Hudson Strait, Baffin Land, Port Kennedy 
72° Ellesmere Land 78° 56", West Greenl. 60°—74° 18’ (!), 
East Greenl. 60°—73° 20’ (!). 
y, Am.: Baffin Land, Ellesmere Land 78° 56‘, West 
Greenl. 67 °—74° 18’ (!), East Greenl. 61° 32’ and 70° (!)— 74° 45’, 
Eur.: Spitsbergen (!). As.: Mouth of the Lena, Chukches 
1B. Land. 
in ae seed Geogr. area: @, North America from Great Bear 
nat. size. (Spec. from Lake, Hudson Bay and Rocky Mountains to the northern 
West Greenland’. United States and Alleghanies, Iceland, Great Britain, 
Scandinavia, Finland, Northern Russia, Central European 
Mountains, The Alps, Asia Minor, Northern Asia. 6, North America from 
the Arctic circle to the Northern United States, Iceland, Scandinavia, 
Great Britain, Central European Mountains, Pyrenees, The Alps, Northern 
Russia, Northern Asia. 7, North America from Great Bear Lake to the 
United States, North Scandinavia, Russian Lapland, The Alps. 

Fig. 8. Woodsia ilven- 
5. ASPLENIUM L. 
14. A. viride Huds. 
Berlin Karly. fr. Gronl. p. 81; Lge. Consp. Fl. Groenl. p. 305; Roseny. 
Till’ p: 738. Fl. Dit. 1289) 
Fronds linear pinnate, pinne roundish or rhomboidal, crenate. 
Sori linear, at last confluent. Rachis green furrowed above, stalk 
short, brown below. 
Am.: West Greenl. 61°—62°(!), East Greenl. 65° 35’ (1). 
Geogr. area: Southeast Canada, Northeastern United States, Eu- 
rope, Asia Minor, Caucasus, Siberia. 
Order III. EQUISETACEAE Michx. (By O. GELERT). 
The order consists only of the genus: 
1. EQUISETUM L. 
Sect. I. Hiemalia A. Br. Wintering, scabrous. Spike apiculate. 
