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1. Hypopterygium Bridel, Bryol. Univ. 2: 709. 1827. • [Greek hypo, beneath, and pterygion, small wing, alluding to underleaves].
Plants pale green. Stems pinnate, flabellate, palmate, or umbellate, rudimentary branches absent; stipe cavities absent. Leaves with margins bordered by 1 or 2 rows of long-rhomboidal cells; apex acute or acuminate; costa of lateral frond leaves ending before apex; laminal cells rhomboidal, prosenchymatous, walls thin or weakly incrassate. Specialized asexual reproduction absent.
Species 26 (2 in the flora): North America, Mexico, West Indies, Central America, South America, Europe, Asia, Africa, Indian Ocean Islands, Pacific Islands, Australia.
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Dorsal frond leaves present on basal portion of stipe; stipe and basal frond leaves in 8 rows; paraphyses absent. |
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1 Hypopterygium flavolimbatum |
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Dorsal frond leaves absent from stipe; stipe and basal frond leaves in 3 or 11+ rows; paraphyses present. |
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2 Hypopterygium tamariscina |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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