Home | > | List of families | > | Hymenophyllaceae | > | Vandenboschia | > | gigantea |
Synonyms: |
Trichomanes giganteum Willd. Trichomanes radicans var. giganteum (Bory ex Willd.) Mett. Vandenboschia radicans Auct. non (Sw.) Copel |
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Description: |
Rhizome creeping and up to 2 m long, 1–5 mm in diameter, with abundant rootlets and with dense dark articulate hairs to 3 mm long. Fronds spaced 2–10 cm apart. Stipe erect, 3–17 cm long, terete, winged throughout or only near the lamina, glabrous or with sparse hairs. Lamina dark green, broadly ovate to ovate in outline, 15–50 x 9–20 cm, 4(–5)-pinnatifid. Pinnae alternate, up to 22 on each side of the rhachis, petiolulate, falcate, to 14 x 4 cm; pinnules up to 15 pairs, to 3.5 x 2 cm, ultimate segments linear, to 1 mm wide, apex rounded. Rhachis winged or not winged, with sparse hairs; costae and costules winged, with occasional minute brown scales. Sori 1–4 per pinnule, sub-axillary; involucre urn to narrowly bell shaped, stalked to immersed, 1.5–2 mm long, to 0.5 mm in diameter, mouth truncate or dilated, very slightly bilabiate (two-lipped); receptacle exserted for up to 6 mm. |
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Worldwide distribution: | Africa, Comoro Isl., Madagascar, Mauritius, Réunion, São Tomé. |
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Growth form(s): | Epiphyte, lithophyte, terrestrial. |
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Spot characters: | Display spot characters for this species |
Literature: |
Fischer E. & Lobin W. (2024). Checklist of Lycopodiopsida (clubmosses and quillworts) and Polypodiopsida (ferns) of Rwanda. Willdenowia 53(3) Page 162. Ntore, S. & al. (2024). Checklist of the vascular plants of Burundi Page 32. As Vandenboschia radicans |
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