Figure 9. When the sporophyte emerges, it tears off a piece of the female gametophyte's archegonium, leaving a coating called the calyptra.Mosses have a capsule, where the sporangia are housed.This capsule has a lid-like structure called an operculum, which pops off when spores have matured. A membranous hood, the calyptra, which is also discarded at maturity, further protects the operculum. from Other Mosses: As opposed to the other mosses (granite moss, true mosses, etc. Capsule Structure. The capsule is a small pod that contains the spores. ... Common Name: Yellow Moosedung Moss • Bright yellow skirts of capsule bases. The moss capsule has several tissues. Figure 8. In wet conditions the spores can't travel very far. Liverwort capsule & stalk . Sporophyte Generation. ), peat mosses show the following distinctive characteristics: (a) Protonemata are low structure (thallose). What is produced within this structure (the capsule)? • Splachnaceae are mostly nitrogeous dung mosses that Indicate where these structures occur in the life cycle diagram that you prepared (above). • Umbrella-shaped structure on gametophyte is a carpocephalum. Moss capsule x40 check_circle Expert Answer. The spore capsule, often with a supporting stalk (called a seta), is the sporophyte and this grows from the gametophyte stage. Worldwide there are hundreds of species of moss. A moss is a flowerless, spore-producing plant - with the spores produced in small capsules. Moss capsule containing spores. Moss life cycle Sporophyte Gametophyte. Inside the capsule can be anywhere from 4 to over a million spores depending on the species of moss. Biodisc photomicrograph: L.S. (b) Stems of adult gametophytes devoid of rhizoids. moss structure If you get interested in mosses and acquire a moss field-guide, the first thing you should do is to check out the pages showing moss structure. Since most are so small, using a hand lens, loupe or magnifying glass will help you identify varieties. In essence, the liverwort capsules is simpler, containing spores and a second cell type called elaters. Want to see the step-by-step answer? calyptra (cap) operculum (lid) The front of the capsule … • Sporophyte is hidden under the carpocephallum. Spores of bryophytes are generally small, 5–20 micrometres on the average, and usually unicellular, although some spores are multicellular and considerably larger. Bryophyte - Bryophyte - Form and function: The gametophyte form shows several developmental stages: the spore, the protonema, and the gametophore, which produces the sex organs. Be sure that you can identify the sporophyte and the sporangium on the live moss plant. Question. Indentifying Moss Species. (f) Dehiscence of capsule by breaking of operculum. In the drawing at the right, notice that the moss reproductive part consists mainly of a capsule (the operculum, annulus, peristome and urn) on … On the front of the pod capsule are a set of ‘teeth’ called the ‘peristome‘ that controls the release of the spores. Distinction of Peat Mosses (Sphagnum spp.) Pay attention to the size, shape and position of the capsule, the length of the stalk and the structure … 25 views. The bryophyte groups What is a moss? Name the structure in moss capsule that is haploid tissue. page noted that bryophytes have a gametophyte stage and a sporophyte stage. The introductory WHAT IS A BRYOPHYTE? Moss sporophytes have a complex set of structures at the top of a seta. The liverwort and moss capsules are very different. Asked Jul 8, 2020. In most mosses, the mouth of the capsule is covered by a lid-like operculum, which falls off when the spores are mature. Name the structure in moss capsule that is haploid tissue. 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