. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. SCROPHULARINEAE 229 towards the upper anthers later, for the style does not grow during anthesis at the same rate as the corolla. Automatic self-pollination is in any case inevitable towards the end of anthesis. Kerner, however, did not observe elongation of the corolla, but says that towards the end of anthesis the style bends so far downwards as to bring the stigma into the line of fall of the Fig. 3-'i. Kuphrasia inijiima^ Jncq. (after Henn. Miil
. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. SCROPHULARINEAE 229 towards the upper anthers later, for the style does not grow during anthesis at the same rate as the corolla. Automatic self-pollination is in any case inevitable towards the end of anthesis. Kerner, however, did not observe elongation of the corolla, but says that towards the end of anthesis the style bends so far downwards as to bring the stigma into the line of fall of the Fig. 3-'i. Kuphrasia inijiima^ Jncq. (after Henn. Miillcr). A. Flower in the Grst staj;e, seen somewhat obliquely from in front and above. D. A smaller do., seen directly from the front. C. An older llower, with stigma bent under the upper anthers. D. Uo., seen oblifjuely from the right front. E. Still older do., with stigma abundantly self-pollinated. F. The two right stamens, seen from outside, and more strongly magnified. G. Do., seen from inside. H. Ovary and nectary. <.A-E, and 1-1 v. â ; \ cj, calyx ; d, anther-process; A, hairs on anthers ; ?i, nectary ; s/, stigma. 674. Trixago Stev. 2177. T. apula Stev. {= Bartsia Trixago Z.). (Kerner, 'Nat. Hist. PI.,' Eng. Ed. I, II, p. 353.)âIn this Dalmatian species each anther possesses a downwardly- pointing process, which is pushed to one side by insects, thus opening the pollen receptacle and causing pollen to be sprinkled on the head and back of the visitors. 675. Lathraea L. Protogynous bee flowers. Nectar (according to Stadler) secreted by a gland resembling a flattened bag, lying on the lower side of the ovary; it is stored at the base of the corolla-tube. Kerner says that the flowers are only entomophilous at first, becoming anemophilous towards the end of anthesis. 2178. L. squamaria L. (W. J. Behrens, 'Lehrbuch d. Botanik'; Knuth, ' D. Bestaubungseinricht. d. Orobancheen ' ; Kerner, ' Nat. Hist. PI.,' Eng. Ed. i, II, pp. 330-1 ; Warnstorf, Schr. natw. Ver., Wernigerod
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