. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. PL ANT A GIN A CEAE 325 Schulz noticed not only gynodioecism, but also gynomonoecism, andromonoecism, and androdioecism. Visitors.—Knuth observed (Kiel Botanic Garden) the butterfly Vanessa io Z., vainly searching for nectar, and the following in Thuringia (Eisenach, Coburg, and Schwarzburg), and in meadows at Cassel (July, '94).— A. Coleoptera. (a) Ceramhycidae: i. Strangalia bifasciata Miill., po-dvg. (b) Nitidulidae: 2. Meligethes sp., po-dvg. B. Diptera.
. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. PL ANT A GIN A CEAE 325 Schulz noticed not only gynodioecism, but also gynomonoecism, andromonoecism, and androdioecism. Visitors.—Knuth observed (Kiel Botanic Garden) the butterfly Vanessa io Z., vainly searching for nectar, and the following in Thuringia (Eisenach, Coburg, and Schwarzburg), and in meadows at Cassel (July, '94).— A. Coleoptera. (a) Ceramhycidae: i. Strangalia bifasciata Miill., po-dvg. (b) Nitidulidae: 2. Meligethes sp., po-dvg. B. Diptera. Syrphidae: all po-dvg.: 3. Eristalis sp.; 4. Melanostoma mellina Z.; 5. Rhingia rostrata Z.; 6. Syrphus balteatus ZJi'^.; 7. S. sp.; 8. Volucella pellucens Z. C. Hymenoptera. Apidae: all po-cltg.: 9. Apis mellificaZ.; 10. Bombus lapidarius Z. 5; n- B. terrester Z. 5 and 5 ; 12. Halictus cylindricus Z'.. Fig. 346. Plantago media, L. (after Herm. Miiller). (1-5) A form growing on dry sunny slopes at Rixberger Hill (Lippstadt). (i) Bud. (2) Opening flower. (3) Completely expanded flower. (4) Corolla. (5) Pistil. (6-8) Another form growing in damp and rather shady spots in the same locality. (6) Mature flower. (7) Corolla. (8) Pistil. a, anthers ; yf, filaments ; oi^, ovary ; ^, petals ; J, sepals; St, stigma. Herm. Muller gives the following list, in which Budd. = Buddeberg, and T. = Thuringia.— A. Coleoptera. (a) Ceravihycidae: i. Strangalia bifasciata MiilL, po-dvg. (T.); 2. S. nigra Z., in large numbers, gnawing the anthers, (b) Telephoridae: as 2 : 3. Anthocomus fasciatus Z.; 4. Malachius aeneus Z. (c) Nitidulidae : 5. Meligethes, not infreq. (d) Oedevieridae : 6. Oedemera marginata F., dvg. the anthers (T.). B. Diptera. (a) Muscidae: 7. Spilogaster semicinerea Wied., very common, po- dvg. (6) Stratiomyidae: 8. Chrysomyia formosa Scop, (c) Syrphidae : all po-dvg.: 9. Ascia podagrica F.; 10. Chrysotoxum festivum Z. (Kitzingen); 11. Eristalis arbustorum Z., very common; 1
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