| 单词 | Utricularia |
| 例句 | In the plant kingdom, the tiny, rootless aquatic bladderwort plant, Utricularia gibba, captures insect prey in miniature traps using vacuum suction. Not all genes are necessary for survival — these species dropped extra genetic baggage 2019-10-27T04:00:00Z Figure 2: Architecture of the Utricularia gibba genome. a, U. gibba gene islands are more compact than in Arabidopsis, and much higher in gene density than tomato or grape. Architecture and evolution of a minute plant genome 2013-06-05T17:21:05.400Z Now one seems to be attracted to this elegant glassy cluster of Utricularia. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z Spur of corolla very short and blunt, or almost none Bladderwort, Utricularia minor. 7b. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State The blue Utricularia had been heard of and discredited long before it was found—Utricularias are not orchids indeed, but only botanists regard the distinction. About Orchids A Chat The account of Utricularia is most marvellous, and quite new to me. Alfred Russel Wallace: Letters and Reminiscences, Vol. 1 These genes regulate plant morphogenesis, including branching, and it is tempting to speculate that specific clade expansions may be related to the genus-wide diversity of branching patterns in Utricularia. Architecture and evolution of a minute plant genome 2013-06-05T17:21:05.400Z Several beautiful little aquatic plants of the genus Utricularia or bladder-wort also inhabit bromelia leaves; and these send runners out to neighbouring plants and thus spread themselves with great rapidity. Darwinism (1889) This remarkable genus is technically distinguished from Utricularia, as I hear from Prof. Oliver, by having a five-partite calyx. Insectivorous Plants Upon the other hand, he came across the lovely Utricularia Campbelli, and in defiance of instructions brought it down. About Orchids A Chat The contrivance in Utricularia and Dionæa, and in fact in Drosera too, seems fully as great and complex as in Orchids, but there is not the same motive force. Alfred Russel Wallace: Letters and Reminiscences, Vol. 1 In the common species of Utricularia or bladderwort, these little sacs, hanging from submerged leaves or branches, have their orifice closed by a lid which opens inwardly—a veritable trapdoor. Darwiniana; Essays and Reviews Pertaining to Darwinism Let me hear when you recommence on Cephalotus or Sarracenia, as I think I am now on right track about Utricularia, after wasting several weeks in fruitless trials and observations. More Letters of Charles Darwin — Volume 2 Did the three species just named, like their close allies, the several species of Utricularia, aboriginally possess bladders on their rhizomes, which they afterwards lost, acquiring in their place utriculiferous leaves? Insectivorous Plants For Utricularia is a carrion-feeder, and not strictly carnivorous like Drosera. Life and Letters of Charles Darwin — Volume 2 The primordial utricle or protoplasm lining the processes was also thickened here and there into irregular and variously shaped specks of yellowish translucent matter, as occurred in the case of Utricularia neglecta under similar treatment. Insectivorous Plants Our observations apply to the present species and to Utricularia vulgaris, but were made chiefly on the latter, as the bladders are twice as large as those of Utricularia neglecta. Insectivorous Plants Sir E. Tennent speaks of an aquatic species of Utricularia in Ceylon, which has bladders on its roots, and rises annually to the surface, as he says, by this means. More Letters of Charles Darwin — Volume 2 We may therefore conclude that Utricularia cannot digest the animals which it habitually captures. Insectivorous Plants It is an aquatic Dionaea, which has acquired some structures identical with those of Utricularia! Life and Letters of Charles Darwin — Volume 2 As the quadrifid and bifid processes offer one of the greatest peculiarities in the genus, I carefully observed their development in Utricularia neglecta. Insectivorous Plants It will hereafter be seen that in three or four other species of Utricularia the quadrifid processes in contact with decaying animals likewise contained aggregated masses of protoplasm. Insectivorous Plants In another bladder there was a minute grain of quartz, reminding me of two similar cases with Utricularia neglecta. Insectivorous Plants Changes of this nature are, however, far more rapid in Drosera than in Utricularia. Insectivorous Plants I am rather glad you have not been able to send Utricularia, for the common species has driven F. and me almost mad. Life and Letters of Charles Darwin — Volume 2 The bladders resemble those of Utricularia montana in all essential respects, even to the presence of a few minute two-armed glands on the valve. Insectivorous Plants The leaves and bladders are much smaller than those of Utricularia neglecta. Insectivorous Plants Prof. Oliver informs me that two or three species of Utricularia are provided with these appendages; and the group containing them has in consequence received the name of orchidioides. Insectivorous Plants In other respects, as Prof. Oliver remarks,* "it is quite a Utricularia." Insectivorous Plants He was indebted to Lady Dorothy Nevill for specimens of the curious Utricularia montana, which is not aquatic like the European species, but grows among the moss and debris on the branches of trees. Life and Letters of Charles Darwin — Volume 2 These two-celled papillae apparently correspond with the bifid process in the upper part of the bladders of Utricularia. Insectivorous Plants These spiral arms form a conspicuous difference between the present genus and Utricularia. Insectivorous Plants We shall see in a future chapter that these projections curiously resemble those found within the bladders of Utricularia, more especially of Utricularia montana, although this genus is not related to Aldrovanda. Insectivorous Plants On the other hand, the rhizomes bear bladders resembling in essential character those on the rhizomes of Utricularia. Insectivorous Plants This substance was chosen partly because it is absorbed by the quadrifid processes and more especially by the glands of Utricularia—a plant which, as we shall hereafter see, feeds on decayed animal matter. Insectivorous Plants Moreover, several of the quadrifids, which were before empty, now contained moderately sized or very small, more or less aggregated, globules of yellowish matter, as likewise occurs under the same circumstances with Utricularia. Insectivorous Plants |
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