. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. LEGUMINOSAE 299 stage the stigma projects through the cleft. To begin with, it is surrounded by the pollen-grains of its own flower, but these do not adhere to its papillae, which are not yet viscid. Not till the pollen has been carried away on the ventral surfaces of insect visitors, are the delicate epidermal cells of the stigma partly rubbed away, making it receptive for pollen from other flowers. Visitors.âThese are chiefly humble-bees. Herm. Miiller obs
. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. LEGUMINOSAE 299 stage the stigma projects through the cleft. To begin with, it is surrounded by the pollen-grains of its own flower, but these do not adhere to its papillae, which are not yet viscid. Not till the pollen has been carried away on the ventral surfaces of insect visitors, are the delicate epidermal cells of the stigma partly rubbed away, making it receptive for pollen from other flowers. Visitors.âThese are chiefly humble-bees. Herm. Miiller observed the follow- ing insects.â A. Hymenoptera. Apidae: i. Bombus agrorum Z'. 5, skg.; 2. B. hortorum L. 5, do.; 3. B. sylvarum L. 5, do. B. Lepidoptera. Rhopalocera: 4. Lycaena minima Fuessl. 5, do. C. Hemiptera. 5. Capsus sp., attempting to Fig. 97. Anthyllis VuUieraria, L. (after Herm. Miiller). (l) Flower seen from below. (2) Flower after removal of the calyx, seen from the side. (3) Flower after removal of the calyx and the vexillum, seen from above. (4) Anterior half of the carina, seen obliquely from above and from the left. (5) Anterior half of the carina and an ala, seen from the left side. (6) Left ala (except the base), seen from within. (7) Vexillum, seen from below ( x 3J). (8) Tip of the carina after removal of its left half, with the stamens and style, seen from the left side (X 7). a, calyx ; ^, lower side of the vexillam ; b\ groove in the same ; c, outside of the vexillum ; rf, lobes of the vexillum grasping alae and carina ; e, inner side of the alae; yj outer side of the alae; j^, deep and narrow fold in the upper external surface of the vexillum, projecting inward as a sharp ridge. This latter fits into a deep fold (/") in the upper side of the carina (/t), and is fixed still more firmly by an acute process (/) of the carina, which fits into the space {h') behind the sharp ridge {h)\ nt, opening in the carina through which the pollen passes o
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