| 单词 | Primula veris |
| 例句 | Feb. 8th, the Helleborus niger made a fine show; the Galanthus and winter aconite by the 15th covered the garden with beauty, among some crocuses and violets, and Primula veris, &c. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Primula veris, he says, more properly belongs to the primrose than cowslip. Notes and Queries, Number 193, July 9, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc On the specific difference between Primula veris, Brit. Life of Charles Darwin This, with its numerous varieties, comes under Primula veris, or the common Cowslip. Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. Lacking in the Primula veris, these scapes must obviously have been lost at the time of the evolution of this form. Species and Varieties, Their Origin by Mutation Equal-styled variety of Primula veris, fertility of, greatly increased by a cross with a fresh stock. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Primula veris or the cowslip.—Differences in structure between the two forms.— The Different Forms of Flowers on Plants of the Same Species I will here give only a single instance,—the well-known one of the primrose and cowslip, or Primula veris and elatior. On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life Primula veris—offspring from long-styled plants of the third illegitimate generation, crossed by a fresh stock, compared with plants of the fourth illegitimate and self-fertilised generation, in fertility in following year: .. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Linnaeus called them Primula veris, and recognized three types as pertaining to this species, but Jacquin and others have elevated these subspecies to the full rank of species. Species and Varieties, Their Origin by Mutation Primula veris—offspring from long-styled plants of the third illegitimate generation, crossed by a fresh stock, compared with plants of the fourth illegitimate and self-fertilised generation: 8 : 7.03 : 8 : 3.21 : 46. Effects of Cross and Self Fertilisation in the Vegetable Kingdom The oxlip a hybrid naturally produced between Primula veris and vulgaris. The Different Forms of Flowers on Plants of the Same Species The self-fertility of Primula veris increased after several generations of illegitimate fertilisation, which is a process closely analogous to self-fertilisation, but only as long as the plants were cultivated under the same favourable conditions. Effects of Cross and Self Fertilisation in the Vegetable Kingdom I have also elsewhere shown that with Primula veris and sinensis, equal-styled varieties occasionally appear which possess the sexual organs of the two forms combined in the same flower. Effects of Cross and Self Fertilisation in the Vegetable Kingdom I have also noticed an extraordinary amount of difference in the length of the pistil in cultivated varieties of Primula veris and vulgaris. The Different Forms of Flowers on Plants of the Same Species Primula veris—offspring from long-styled plants of the third illegitimate generation, crossed by a fresh stock, compared with plants of the fourth illegitimate and self-fertilised generation, in fertility: .. Effects of Cross and Self Fertilisation in the Vegetable Kingdom In flowers of the same age of Primula veris the ovules are larger in the long-styled than in the short-styled form. The Different Forms of Flowers on Plants of the Same Species We thus see that the visits of insects are absolutely necessary for the fertilisation of Primula veris. The Different Forms of Flowers on Plants of the Same Species |
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