1909. No. 8. VASCULAR PLANTS COLLECTED IN ARCTIC NORTH AMERICA. 31 
Pteridophyta. 
Equisetaceae. 
Equisetum L. 
1. Equisetum arvense L., Sp. pl., 1753, p. 1061. 
Herschell Isl. Sterile shoot. 
Monocotyledones. 
Juncaceae. 
Luzula D.C. 
2. Luzula sp. 
King Point. A sterile shoot was found among other plants 
(July 1906). 
Cyperaceae. 
Eriophorum L. 
3. Eriophorum vaginatum L., Sp. pl., 1753, p- 52. 
The specimens agree with the European E. vaginatum (anthers ca. 
2,5 mm. long, cauline sheaths conspicuously inflated) and do not belong to 
the Eriophorum which M. L. FERNALD (Rhodora, vol. 7, 1905, p. 85) calls 
»E callitrix CHamisso<, and which is the common North American form 
of the vaginatum group. FERNALD (l.c., p. 84) records with some doubt 
E. vaginatum from Mackenzie district, Artillery lake, which is in good 
accord with our specimens. 
King Point. Flowering spec. (ab. July 1st 1906, GODFRED HANSEN), 
immature fruiting spec. (July 7th, 1906). 
Cobresia Winn. 
4. Cobresia Bellardii (ALL.) DEGLAND., in Loisek Fl. Gall. II, 1807, 
p. 626; KUKENTHAL, Caricoideae, in Das Pflanzenreich, 1909, p. 37; Elyna 
Bellardii (AuL.) Koch, Linnæa, 1848, p. 616. 
Elyna spicata, PuLen’s list, Arctic coast. 
King Point. Å single tuft with young fruits (June 28th, 1906). 
