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
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
somewhat evident, mostly free, rarely anastomosing. Sori 1–10(–15+) pairs per pinna, on both acroscopic and basiscopic lobes. Spores malformed (sterile form)
4 KB (482 words) - 21:22, 5 November 2020
apex rounded to acute. Veins free, evident. Sori as many as 30 or more per pinna, usually 1–5 per segment, on both basiscopic and acroscopic sides. Spores
5 KB (552 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
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, obliquely
3 KB (233 words) - 21:24, 5 November 2020
oblong-lanceolate, 2–3-pinnate, (2–)6–12(–18) × 2.7–10 cm, thin, glabrous; basal pinna pairs unreduced to reduced 1/4; apex gradually reduced, not rooting. Rachis
3 KB (244 words) - 21:25, 5 November 2020
obtuse, broadly rounded. Veins free, evident to obscure. Sori 1–3 pairs per pinna on both basiscopic and acroscopic sides. Spores 64 per sporangium. 2n = 144
3 KB (273 words) - 21:23, 5 November 2020
1st and 2d pinnae considerably greater than between 2d and 3d pairs, basal pinna pair approximately equal in size and cutting to adjacent pair, fan-shaped
3 KB (256 words) - 21:25, 5 November 2020
shallowly crenate; apex obtuse. Veins free, obscure. Sori 2–5 pairs per pinna, on both basiscopic and acroscopic sides, often confluent with age. Spores
3 KB (270 words) - 21:23, 5 November 2020
± entire; apex acute to obtuse. Veins free, obscure. Sori 1–5 pairs per pinna, on both basiscopic and acroscopic sides. Spores 32 per sporangium. n = 2n
3 KB (280 words) - 16:04, 9 December 2021
remotely lacerate; apex acute. Veins free, obscure. Sori usually 2+ per pinna, parallel to margins. Spores 64 per sporangium. 2n = 144. Habitat: Cliffs
3 KB (303 words) - 21:22, 5 November 2020
crenulate or ± entire; apex obtuse. Veins free, obscure. Sori 1(–3) per pinna, only on basiscopic side. Spores 32 per sporangium. n = 2n = 108 (apogamous)
2 KB (210 words) - 21:24, 5 November 2020
1st and 2d pinnae not or slightly more than between 2d and 3d pairs, basal pinna pair commonly much larger and more divided than adjacent pair, lobed to tip
3 KB (259 words) - 21:24, 5 November 2020
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
near segment margin. > 4 4 Pinna costae distinctly flexuous; branches arising from prominent angles. Argyrochosma fendleri 4 Pinna costae straight or nearly
6 KB (486 words) - 21:25, 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
pinnules narrow, not auriculate. Veins free, evident. Sori 4–9(–10) pairs per pinna, subcostal, nearly parallel to costae on both basiscopic and acroscopic sides
3 KB (306 words) - 21:23, 5 November 2020
acute or rounded. Veins free, barely evident. Sori 3 to numerous pairs per pinna, on both basiscopic and acroscopic sides. Spores 64 per sporangium. 2n =
4 KB (391 words) - 21:22, 5 November 2020
rachis glabrous or with occasional glandular hairs, adaxial surface glabrous. Pinna apex entire, rounded. Proximal pinnae 3–10 cm, ± perpendicular to rachis
3 KB (324 words) - 21:24, 5 November 2020
coarsely incised; apex acute. Veins free, evident. Sori 1–numerous pairs per pinna [1–6 pairs per segment], on both basiscopic and acroscopic sides. Spores
3 KB (310 words) - 21:22, 5 November 2020
1st and 2d pinnae frequently greater than between 2d and 3d pairs, basal pinna pair commonly much larger and more complex than adjacent pair, cuneate to
6 KB (627 words) - 21:23, 5 November 2020
with apical pinna similar to lateral pinnae and 1/2 to nearly equaling longest lateral pinna; buds often present at base of proximal pinna. Pinnae to 20
3 KB (265 words) - 21:24, 5 November 2020
44-52 µm; largest pinnae divided into 3-7 pairs of closely spaced pinnules, pinna apices usually abruptly tapered to rounded. Woodsia neomexicana 9 Translucent
9 KB (567 words) - 21:21, 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, fan-shaped
3 KB (287 words) - 21:23, 5 November 2020
and adaxially glabrous; rachis flattened or shallowly grooved adaxially. Pinna costae straight to somewhat flexuous, branches rarely arising from prominent
3 KB (202 words) - 21:21, 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, obliquely
3 KB (234 words) - 21:24, 5 November 2020
Pinnae (proximal) triangular, distal pinnae oblong; terminal segment of each pinna ca. 4 times longer than wide, longer ultimate segments less than their width
3 KB (220 words) - 21:23, 5 November 2020
glabrous or sparsely glandular; rachis rounded to slightly flattened adaxially. Pinna costae straight or nearly so, branches not arising from prominent angles
3 KB (222 words) - 21:22, 5 November 2020
ciliate-dentate to entire. Leaves 8–45 cm. Blade 1-pinnate to pinnate-pinnatifid, pinna pairs 20–45. Pinnae oblong to ovate, largest usually 7–15 mm, entire or asymmetrically
4 KB (337 words) - 21:21, 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, mostly narrowly
3 KB (241 words) - 21:24, 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, obliquely
3 KB (230 words) - 21:24, 5 November 2020
slightly more than between 2d and 3d pairs, asymmetrically cuneate, basal pinna pair often divided into 2 unequal parts, lobed to tip, margins entire, sinuate
3 KB (265 words) - 21:22, 5 November 2020
farina, adaxially glabrous; rachis rounded to slightly flattened adaxially. Pinna costae straight or nearly so, branches not arising from prominent angles
3 KB (258 words) - 21:25, 5 November 2020
and adaxially glabrous; rachis rounded to slightly flattened adaxially. Pinna costae straight or nearly so, branches not arising from prominent angles
3 KB (268 words) - 21:22, 5 November 2020