| 单词 | calyptra |
| 例句 | The calyptra buds to form a mature gametophyte. Fundamentals of Biology 2015-01-01T00:00:00Z The ripped-off piece of its birthplace often remains stuck to the top of the sporophyte and is called a calyptra. Mosses Make Two Different Plants From the Same Genome, and a Single Gene Can Make the Difference 2013-05-12T19:45:00.233Z If not preserved in an envelope the calyptra and operculum are very apt to fall off and become lost. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z Capsules short-pedicelled, or sessile on the thallus, or immersed in its substance, free or connate with the calyptra, globose, at length rupturing irregularly. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The calyptra or veil is remarkably small, smooth, and membranous. Lachesis Lapponica A Tour in Lapland, Volume 1 2010-12-31T03:00:11.350Z D, capsules of Bartramia: i, with; ii, without the calyptra. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses It remains for long enclosed within the calyptra formed by the further development of the archegonial wall and surmounted by the neck of the archegonium. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The terminal cell is always solitary, very often attached to the one next it, which is generally single, obliquely placed, occasionally looking like the dimidiate calyptra capping a young seta. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries Thallus decumbent, irregularly lobed, 1–2´ long, 3–5´´ wide; involucre none; pedicel ¾–1´ long, sometimes folded upon itself and remaining within the calyptra, the capsule thus appearing sessile; antheridia on elongated receptacles.—Wooded swamps. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Involucral leaves coalescent into an oblong truncate hairy tube, blended in our species with the calyptra; perianth none. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z I, ripe capsules of hairy-cap moss: i, with; ii, without calyptra. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Longitudinal section of the summit of a shoot bearing a nearly mature sporogonium, sg, still enclosed in the calyptra; ar′, archegonia which have remained unfertilized; st, stem; b, leaf; p, perianth. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The young sporogonium is protected by a thick calyptra derived from the tissue of the thallus around the archegonium. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Capsule filling the involucre, circumscissile in the middle, the calyptra persistent at its base. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z B, Similar plant with an almost mature sporogonium; s, seta; f, capsule; c, calyptra. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The upper portion of the archegonial wall is carried up as a calyptra on the sporogonium, which, as in Sphagnum, has no seta and is raised on a pseudopodium. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" |
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