. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. J\lORTHW£6T£RM RUS5IA. STATUTE MILES, Fig. 1. Map of northwestern Russia. and chilling winds are frequent, interrupted by a month of uncomfortably warm weather in summer. Daylight, or twilight, is perpetual from April to September. Three Russian botanists, temporarily or permanently stationed in these regions, were of great help in the planning of trips and in the final identifica- tion of the plants collected; they are Johann Eichf eld. Director of the Hibini Station, George M. Kreps, Keeper of the Imandra Game Reserve, a
. Contributions from the Botanical Laboratory, vol. 11. Botany; Botany. J\lORTHW£6T£RM RUS5IA. STATUTE MILES, Fig. 1. Map of northwestern Russia. and chilling winds are frequent, interrupted by a month of uncomfortably warm weather in summer. Daylight, or twilight, is perpetual from April to September. Three Russian botanists, temporarily or permanently stationed in these regions, were of great help in the planning of trips and in the final identifica- tion of the plants collected; they are Johann Eichf eld. Director of the Hibini Station, George M. Kreps, Keeper of the Imandra Game Reserve, and Vlad-. HlSini MOUtiTAITiS, /^USSIAn LAFUliP, iXemtvons artinftet aJbovtthcJIrctic Oc^aK. yfmi;s Fig. 2. Map of the Hibini Mountain region of Russian Lapland. imir Fridoline of the Leningrad National Academy, specialist in entomolog- ical biology. To these gentlemen are my thanks due for their courteous as- sistance. I am also indebted to IVIr. W. R. Williams of the New York Botan- ical Gardens for identifying the mosses, to the late Professor C. C. Plitt of the University of Maryland, for the identification of the lichens, and to Miss Emily Rock for listing and arranging the plants names. Lake Imandra is 430 feet above sea level (fig. 2). Its shores, where recent foresting has left them untouched, are covered with pine, spruce, and birch The pine, Finns silvcstris var. femiica, usually predominates. The spruce is chiefly the Siberian species, Picea ohovata, with P. cxcclsa also pres- ent and according to some authorities, equally abundant. There is difhculty. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum. Philadelphia : [s. n. ]
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