Seed Germination in Arctic and Alpine Species

Résumé

Account of germination tests made with the aim of ascertaining seed viability of plants from the arctic tundra of Alaska (near Umiat, 69 22 N, 152 10 W) and the alpine tundra of Wyoming. A greater proportion of the latter germinated (of 26 species, 21 i.e. 80%; of 36 arctic species, 22 or 61%); though individual species from both tundras showed a high percentage of germination. Conditions affecting germination, influence of light and darkness, wetness, etc., are analyzed.