. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. SAXIFRAGEAE 399 bees (the sole resort of which during the summer is this species) and flies. In Spitzbergen he noticed several small Muscids on three days during July. Schneider (Mus. Aarsh. Troms0, xvii, 1895) saw Andrena sp. in the Christiania Botanic Garden. He further states (op. cit., p. 142) that humble-bees only play a sub- ordinate part as pollinators in Arctic Norway. 944. S. aizoides L. (Herm. Miiller, 'Fertilisation,' p. 245, ' Alpenblumen,' pp. 9
. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. SAXIFRAGEAE 399 bees (the sole resort of which during the summer is this species) and flies. In Spitzbergen he noticed several small Muscids on three days during July. Schneider (Mus. Aarsh. Troms0, xvii, 1895) saw Andrena sp. in the Christiania Botanic Garden. He further states (op. cit., p. 142) that humble-bees only play a sub- ordinate part as pollinators in Arctic Norway. 944. S. aizoides L. (Herm. Miiller, 'Fertilisation,' p. 245, ' Alpenblumen,' pp. 94-8; Warming, Bot. Tids., Kjobenhavn, xvi, 1888, pp. 26-7; Axell, ' Om Anord. for Fanerog. Vaxt. Befiukt.,' p. 35; Engler, Bot. Ztg., Leipzig, xxvi, 1868 ; Schulz, ' Beitrage.')—Axell and Engler were the first to describe the protandry of this species, though Schulz states that the terminal flower is frequently female. The nectar is exposed, and the flower mechanism adapted to the visits of flies. According to Hermann Miiller, cross-pollination, as the "''n-'JWffir^ "'"'"'"'^'"'" Warming states that in Greenland, Spitz- bergen, and Finmark, the flowers are at first markedly protandrous, afterwards becoming V>*«*/ -A. homogamous. Ripe fruits were observed at St. 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 Knuth, Paul, 1854-1899; Knuth, Paul, 1854-1899; Mu?ller, Hermann, 1829-1883; Ainsworth Davis, J. R. (James Richard), 1861-1934. Oxford : Clarendon Press
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