| 单词 | Ophrys |
| 例句 | Take for example Ophrys sphegodes, the early spider orchid, which has flowers resembling a spider's abdomen, but also reproduces the sex pheromones of certain mining bees. Why did this daisy evolve to look like a fly? 2023-03-26T04:00:00Z Was this the spot where the Judge had collected the beautiful Ophrys for me! The Lonely House 2011-01-13T03:01:04.920Z However, the scientists were surprised to find a large population of a hybrid species of orchid growing nearby, created by interbreeding between Ophrys arachnitiformis and Ophrys lupercalis . Light shed on bee-tricking orchid 2010-04-21T09:16:00Z I had crossed this same field in a former year without observing the Ophrys there. Island Life Or the Phenomena and Causes of Insular Faunas and Floras Mr. J. T. Moggridge has described and figured a flower of Ophrys insectifera in which there was a vestige of a second stamen present, probably one of the inner series fig. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Europe Ophrys apifera is as regularly self-fertilised as is any cleistogene flower. Effects of Cross and Self Fertilisation in the Vegetable Kingdom He had certainly gathered the Ophrys for me here. The Lonely House 2011-01-13T03:01:04.920Z Ophrys apifera, self-fertilisation of. -formation of pollen by a petal in. The Variation of Animals and Plants under Domestication — Volume 2 I have seen the action in Ophrys exactly as you describe, and am thoroughly ashamed of my inaccuracy. More Letters of Charles Darwin — Volume 2 M. His observed, several years in succession, some flowers of a species of Ophrys with three sepals, no lateral petals, one lip, and three perfect stamens. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants This is the case with the varieties of Pisum sativum and of Lathyrus odoratus which are cultivated in England, and with Ophrys apifera and some other plants in a state of nature. Effects of Cross and Self Fertilisation in the Vegetable Kingdom When I returned his handkerchief I would expatiate on the terrible danger of the place where the Ophrys Bertolini was to be found. The Lonely House 2011-01-13T03:01:04.920Z But, he wrote, "the safest conclusion, as it seems to me, is, that under certain unknown circumstances, and perhaps at very long intervals of time, one individual of the Bee Ophrys is crossed by another." Darwin and Modern Science I am glad, however, that you are now convinced of the difficulty which I had two weeks ago in plucking the Ophrys Bertolini. The Lonely House 2011-01-13T03:01:04.920Z Dr. J. E. Gray exhibited at the Botanical Society of London, in August, 1843, a specimen of Ophrys apifera with a triandrous column, the supernumerary anthers belonging, apparently, to the inner whorl. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Ophrys offers a remarkable instance of one species having its structure manifestly adapted for self-fertilisation, and other species as manifestly adapted for cross-fertilisation. Effects of Cross and Self Fertilisation in the Vegetable Kingdom I dug up a number of the beautiful Ophrys Bertolini growing here by hundreds, and then, walking on quickly, in scarcely five minutes I reached the Lonely House. The Lonely House 2011-01-13T03:01:04.920Z The Ophrys Bertolini grows in the neighbourhood; except himself no one knows the locality. The Lonely House 2011-01-13T03:01:04.920Z I have observed cases of the adhesion of the segments of the perianth to the stamen in Ophrys aranifera, Odontoglossum, sp. &c. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Mr. Moggridge has communicated to the author an account of certain flowers of Ophrys aranifera, in which the petals were deficient, sometimes completely, at other times one or two only were present. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants It will be seen from the following description that these flowers presented an almost precisely similar condition to those of the Ophrys aranifera just mentioned. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants The ascent to a place where he told me I should find quantities of the Ophrys Bertolini was so hazardous that I might easily have come to grief had I not been a practised mountaineer. The Lonely House 2011-01-13T03:01:04.920Z |
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