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NZ Plants
Hypopterygium species - umbrella moss
Family: Hypopterygiaceae
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Plants
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Creeping primary stems form erect, frond-bearing branches
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Stipe
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Filamentous rhizoids are formed in young portions of the stipe
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As the stipe ages, rhizoids proliferate
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Older stipes are often completely encased by a mat of rhizoids.
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Frond with pinnate branches
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Upper surface of the midrib of a frond with fertile perichaetial bracts
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Upper surface of branches with two rows of leaves
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Growing branch tip
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Lower surface of branches with single row of under-leaves
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Lower surface of branches with single row of leaves (drying)
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Sporophyte plant
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Mature capsules
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Capsule, peristome teeth
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Hypopterygium species have a prostrate creeping primary stem that forms erect secondary branches (stipes). Each stipe terminates in an almost circular umbrella-like frond with pinnate branches (branches regularly arranged in one plane to either side of the frond axis). Arranged along each branch there are two rows of elliptical-to-ovate leaves (lateral leaves) that wrap around the stem. There is an additional row of smaller, circular-to-oblong leaves (underleaves) on the lower side of the branch.
Widespread in New Zealand in moist forest.
See Find by Genus page for other umbrella mosses : Canalohypopterygium, Dendrohypopterygium, Hypnodendron, Mniodendron, Sciadocladus.
