. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 444 ANGIOSPERMAE—MONOCOTYLEDON ES however, rarely sets fruits. Maximovicz says that when L. dahuricum and the variety croceum are crossed, the latter produces fruits corresponding to those of the former, and vice versd. Visitors.—The following were recorded by the observers, and for the localities stated.— Knuth (Gardens at Kiel), the peacock butterfly (Vanessa io L.). Herm. Miiller (Alps), skg. butterflies belonging to the genera Polyommatus and Argynnis, a
. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 444 ANGIOSPERMAE—MONOCOTYLEDON ES however, rarely sets fruits. Maximovicz says that when L. dahuricum and the variety croceum are crossed, the latter produces fruits corresponding to those of the former, and vice versd. Visitors.—The following were recorded by the observers, and for the localities stated.— Knuth (Gardens at Kiel), the peacock butterfly (Vanessa io L.). Herm. Miiller (Alps), skg. butterflies belonging to the genera Polyommatus and Argynnis, and of the same colour as the flowers of the species. 2724. L. candidum L. (Knuth, op. cit., 'Beitrage,' VI.)—I illustrate the flower mechanism of this plant, which has been grown in cottage gardens for centuries, from specimens obtained in gardens in Kiel. The very large, white flowers are infundibulo-campanuliform and horizontal. They are faintly fragrant by day, much more strongly so in the evening, almost like lilies of the valley. The base of each petal is green and contracted into a sort of groove, in which a rather large drop of nectar is secreted. Automatic self-pollination is excluded in spite of homogamy, as the stigma projects 20—5 mm. beyond the anthers. The white colour, greater fragrance in the evening, and versatile anthers indicate that the flowers are adapted for pollination by noc- turnal hawk-moths, especially as no other insects correspond in size to the flowers, and there is no platform provided for visitors. When a visit takes FlO. 396. Lilmm candidum, LI(from naXure). The perianth plaCC, the inSect Cannot avoid and 4 of the 6 stamens are removed. The receptive stigma , . , . k' k projects about 25 tmn. beyond the anthers (natural size). touching the Stigma, wnicn dominates the entrance of the flower, owing to a slight upward bend in the terminal part of the style, and dusts it with pollen if another flower has previously been visited. On penetrat
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