familyThelypteridaceae
genusMacrothelypteris
Show Lower Taxa
Difference between revisions of "Macrothelypteris"
Acta Phytotax. Sin. 8: 308. 1963.
Etymology: Greek makros, large, thelys, female, and pteris, fern
Basionym: Thelypteris sect. Macrothelypteris H. Itô
Synonyms: Thelypteris subg. Macrothelypteris (H. Itô).
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>short-creeping, thick, 1 cm diam. <b>Blades</b> 2-pinnate-pinnatifid nearly throughout, broadest at base, apex gradually reduced; pinnae pinnate-pinnatifid, sessile or stalked, not connected by wing along rachis; costae not grooved adaxially; buds absent; veins free, often forked, tips not reaching margin; rachises and costae lacking scales; indument abaxially of unbranched, septate hairs mostly over 1 mm. <b>Sori</b> round, medial to supramedial; indusia small, less than 0.3 mm diam., often obscured in mature sori; sporangial capsules bearing short-stalked glands. <b>x</b> = 31.</span><!-- |
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Revision as of 13:25, 27 July 2019
Stems short-creeping, thick, 1 cm diam. Blades 2-pinnate-pinnatifid nearly throughout, broadest at base, apex gradually reduced; pinnae pinnate-pinnatifid, sessile or stalked, not connected by wing along rachis; costae not grooved adaxially; buds absent; veins free, often forked, tips not reaching margin; rachises and costae lacking scales; indument abaxially of unbranched, septate hairs mostly over 1 mm. Sori round, medial to supramedial; indusia small, less than 0.3 mm diam., often obscured in mature sori; sporangial capsules bearing short-stalked glands. x = 31.
Distribution
Tropical and subtropical regions, North America, Asia, Africa, Pacific Islands, Australia in Queensland.
Discussion
Species ca. 10 (1 introduced in the flora).