. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 140 ANGIOSPERMAE—DICOTYLEDONES Botanic Garden), a hover-fly (Eristalis nemorumZ.) and 2 bees—i. Apis mellifica Z. 5, skg.; 2. Osmia rufa Z. 5, persistently skg. Plateau (Ghent Botanic Garden), the honey-bee and Osmia sp. Ekstam (Nova Zemlia), flies. 2004. M. intermedia Link. (Herm. Muller, ' FertiHsation,' pp. 415-16, ' Weit. Beob.,' Ill, p. 17 ; Kirchner, ' Flora v. Stuttgart,' p. 562 ; Knuth, ' Bloemen- biol. Bijdragen.')—In the small, homogamous, sky-blue
. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 140 ANGIOSPERMAE—DICOTYLEDONES Botanic Garden), a hover-fly (Eristalis nemorumZ.) and 2 bees—i. Apis mellifica Z. 5, skg.; 2. Osmia rufa Z. 5, persistently skg. Plateau (Ghent Botanic Garden), the honey-bee and Osmia sp. Ekstam (Nova Zemlia), flies. 2004. M. intermedia Link. (Herm. Muller, ' FertiHsation,' pp. 415-16, ' Weit. Beob.,' Ill, p. 17 ; Kirchner, ' Flora v. Stuttgart,' p. 562 ; Knuth, ' Bloemen- biol. Bijdragen.')—In the small, homogamous, sky-blue flowers of this species the stigma is at the same level as the anthers, so that an insect proboscis probmg for nectar is even less likely to touch both with the same side than in M. alpestris. The connectives are produced into broad swollen appendages covering the anthers, and preventing an inserted proboscis from taking up pollen to be transferred to the stigma. These two peculiarities ensure crossing by insect-visits to a greater extent than in the preceding species, but should these fail automatic self-pollination regularly takes Fig. 278. Myosotis alpestris^ F. W. Schmidt. A. Small-Howered dark-blue form. ^. Do., partly dissected from the side. C Large-flowered paler form. /?. .1 stamen before dehiscence. M-C^7; -^ X 35.) 7z, nectary; ov, ovary. Visitors.—Herm. Muller gives the following list.— A. Diptera. (a) Bombyliidac: \. Bomb3'lius major Z., skg. {b) Muscidae: 2. Aricia incana Wiedem., freq., skg.; 3. Limnophora sp., skg.; 4. PoUenia vespillo F., skg. (; 11. A. parvula A'. 5, in large numbers; 12. Apis mellifica Z. 5, numerous: hanging verti- cally or obliquely from the flower, it inserts the tip of its tongue with great accuracy into the small opening of the corolla-tube; 13. Sphecodes gibbus Z. j, skg. C. Lepidoptera. Rhopalocera: 14. Coenonympha pamphilus Z., freq., skg.; 15. Pieris napi Z., skg.; 16. P. rapae Z., do. The following were recorded b
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