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Asplenium platyneuron ebony spleenwort

Asplenium platyneuron ebony spleenwort Aspleniaceae ASPL; Bx, pb (DeCandido 2001); NY, ct, rr, tr; R, bg, cl, cp, gb, wp;

Fern from a short, unbranched rhizome 0.3-0.4 cm thick, but covered by old leaf stalk bases. Leaves evergreen, tufted at end of rhizome; 5-50 cm long, stalk wiry, dark brown, smooth, 1/4-1/3 the length of the blade, scaly at base; blade 4-50 cm long, 2-7 cm wide, once pinnate, tapered at both ends, midrib (rachis) dark brown, wiry, shiny, leaflets alternate, 15-22 per side, almost stalkless, to 1 cm long, 0.4 cm wide, tip rounded, base with small, ear-like lobe on the lower side that overlaps the rachis, margin slightly toothed, leaflets becoming much smaller near base of blade; fertile leaves few, longer than sterile leaves, linear-oblong, with 30-50 leaflets per side, blades 1-3.5 cm long, 0.3-0.6 cm wide (Flora of North America 1993+). Spore cases oblong, brown, in fish-bone […]

Lycopodium obscurum

Lycopodium obscurum ground pine/ tree clubmoss Lycopodiaceae LYOB; Q; R, bd, gb, h, ro, t;

Evergreen perennial herb, colonial from deep underground stems (rhizomes), leafy stems erect, to 20 cm tall, tree-like, dark green, branches with a slender, bottle-brush appearance. Leaves tiny, scale-like, overlapping, in 6-8 ranks, about 0.5 cm long, 0.1 cm wide, numerous, sharp-pointed. Spore cones yellow, 2-7 cm long, about 0.6 cm wide, in a candelabra-like arrangement above foliage; spores produced July-Sept. (Radford et al. 1968). Wetland status: FACU. Frequency in NYC: Infrequent. Origin: Native. Habitat: Undisturbed, moist woods, swamp forest edges. Appears more shade tolerant and requiring more moisture than L. digitatum. Notes: see L. digitatum. Lycopodiums cannot be successfully transplanted or propagated for restoration to natural areas (Montgomery and Fairbrothers 1992). Habitat protection is the only means of conserving these plants.

Photo: MBGargiullo