Dryas octopela (near Havenfiord).
"Visit to Iceland and the Scandinavian North" by Ida Pfeiffer
For neither did Lycurgus, the valiant son of Dryas (as Homer calls him) ("Iliad," vi.
"Essays and Miscellanies" by Plutarch
Dryas octopetala L. Sieversia glacialis B. BR.
"The Voyage of the Vega round Asia and Europe, Volume I and Volume II" by A.E. Nordenskieold
12,900 years ago, cosmic bombardment by fragments of an asteroid or comet may have caused Earth to enter an unusually cold 1,300-year spell, the Younger Dryas.
Dark layer, the "black mat," comprises carbon-rich sediments at the bottom of Younger Dryas deposits.