papery, slightly glandular; base not tapered; apex with elongate terminal pinna similar in size to subtending lateral pinnae, not rooting. Rachis green throughout
3 KB (269 words) - 21:25, 5 November 2020
herbaceous. Leaf primordia densely hairy, hairs 1.5–2mm. Leaf sheath open. Pinna divisions reduced in size to tip. First pinnule on basal pinnae usually borne
2 KB (212 words) - 21:21, 5 November 2020
crenate; apex rounded to acute. Veins free, evident. Sori 2–4 pairs per pinna, on both basiscopic and acroscopic sides. Spores 64 per sporangium. 2n =
3 KB (289 words) - 21:21, 5 November 2020
dull-scaly; scales brown, lanceolate. Veins free, obscure. Sori 3–7 pairs per pinna, on both basiscopic and acroscopic sides of lobes. Spores 64 per sporangium
3 KB (263 words) - 21:21, 5 November 2020
Leaf primordia with scattered hairs, hairs 0.6–1 mm. Leaf sheath closed. Pinna divisions reduced to tip. First pinnule on basal pinnae usually borne basiscopically
3 KB (216 words) - 21:25, 5 November 2020
cross section. Blade ovate-lanceolate, 1-pinnate, with a ± similar apical pinna, papery. Pinnae not articulate to rachis, segment margins serrulate to spinulose;
4 KB (284 words) - 21:23, 5 November 2020
without unconnected false veins. Soral involucres terminal on vein ends at pinna apices, broadly conic and flaring at mouth. Gametophytes composed of proximal
3 KB (254 words) - 21:25, 5 November 2020
notched, bearing proliferous bud. Veins free, obscure. Sori 1–4 pairs per pinna, on both basiscopic and acroscopic sides. Spores 64 per sporangium. 2n =
3 KB (248 words) - 21:25, 5 November 2020
margins crenate-serrate; apex obtuse. Veins free, obscure. Sori 3–7 pairs per pinna, on both basiscopic and acroscopic sides. Spores 64 per sporangium. Habitat:
2 KB (206 words) - 21:22, 5 November 2020
to crenate, lobed; apex obtuse. Veins free, evident. Sori 3–6 pairs per pinna, on both basiscopic and acroscopic sides of pinnae. Spores 64 per sporangium
3 KB (255 words) - 21:24, 5 November 2020
and 2d pinnae only slightly greater than between 2d and 3d pairs, basal pinna pair usually considerably larger than adjacent pair, obliquely rhomboidal
3 KB (198 words) - 21:25, 5 November 2020
1st and 2d pinnae not or slightly more than between 2d and 3d pairs, basal pinna pair approximately equal in size and cutting to adjacent pair, broadly fan-shaped
3 KB (239 words) - 21:25, 5 November 2020
margins lobed or serrate; apex obtuse. Veins free, obscure. Sori 2–6 pairs per pinna, on both basiscopic and acroscopic sides. Spores 64 per sporangium. Habitat:
2 KB (215 words) - 21:24, 5 November 2020
cm, gradually decreasing in length toward base; segments 20–40 pairs per pinna. Petiole of sporophyll 11–24 cm, base scaly. Blade oblong to oblanceolate
5 KB (460 words) - 21:24, 5 November 2020
in 1 row between midrib and margin, ± round, covered by hardened revolute pinna margin; indusia vestigial, triangular, persistent but not easily seen in
4 KB (432 words) - 21:25, 5 November 2020
Blade 30–70 cm, broadest at or near base, abruptly narrowed distally, apical pinna ± similar to lateral pinnae, 5–17 × 1–3(–5) cm. Pinnae (4–)10–22(–28) × (0
3 KB (290 words) - 21:21, 5 November 2020
reddish brown, ovate, glabrous. Blade elliptic, 15–60 cm, proximal 4–10 pinna pairs gradually smaller toward base (smallest often less than 5 mm), blade
4 KB (343 words) - 21:22, 5 November 2020
whitish farina, adaxially glabrous or glandular; rachis rounded adaxially. Pinna costae distinctly flexuous, branches arising from prominent angles. Ultimate
3 KB (247 words) - 21:22, 5 November 2020
margins ciliate-dentate to entire. Leaves 10–50 cm. Blade pinnate-pinnatifid, pinna pairs 20–45. Pinnae ovate to deltate, largest 7–15 mm, usually symmetrically
3 KB (261 words) - 21:24, 5 November 2020
less than 50 cm; pinna margins ± entire. Blechnum occidentale var. minor 2 Blades 1-pinnate throughout, usually more than 50 cm; pinna margins ± evenly
3 KB (164 words) - 21:25, 5 November 2020