| 词汇 | sporophyll |
| 释义 | BETA Examples of sporophyllsporophyll isn’t in the Cambridge Dictionary yet. You can help! In this specimen five tiers of sporophylls are preserved. Some sporophylls have ovate bodies apparently attached to the pedicel. Each sporophyll shows a horizontal region, an upturned distal end on the right, and a small downward extension forming a heel. The most complete example has eight sporophylls arranged in what appears to be a very shallow helix. No isolated megaspores were found associated with the sporophylls. The female cones open, with 1322 cm long sporophylls with 2-4 ovules per sporophyll on a lanceolate triangular lamina with an apical spine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The female cones are open, with sporophylls 12-18 cm long, with four to six ovules per sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The female cones are open, grey with orange hairs, with each sporophyll containing 6-8 ovules. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sporangia are distinctively borne in the axil or on the adaxial surface of the sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The female cones are open, with sporophylls 16-25 cm long, with two to four ovules per sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The female cones are open, with sporophylls 16-21 cm long, with two to four ovules per sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The female cones are open, with sporophylls 13-25 cm long, with two to six ovules per sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The female cones are open, with sporophylls 7 cm long and 3.55 cm wide, and dense grey to orange tomentose, with 6-9 ovules per sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most of the lycophytes were arborescent plants, and yet we only see detached leaves and sporophylls, and relatively small pieces of bark. The plants are heterosporous (megaspores and microspores), and have structures called ligules, scale-like outgrowths near the base of the upper surface of each microphyll and sporophyll. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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