Pteridophyte	Literature for Asplenium macraei Palmer, 2003; Brown & Brown, 1931; Brownsey, 1998; Lorence & Wagner, 2019.
Aspleniaceae -- The Spleenwort Family	Bibliography
Asplenium macraei Hook. & Grev.

General Information
	Distribution	Hawaiian Islands, Samoa, and the Marquesas Islands.In the Marquesas, indigenous to Ua Huka.
	Habitat	Cliffs with wet shrubland and herbland, above Hibiscus-Pandanus-Freycinetia forest zone
	Elevation	520 m
	Habit	Terrestrial. Rhizomes suberect, with 5–14 fronds clustered at apex, scales of rhizome and stipe base 0.8 mm long, 0.3 mm wide, ovate-oblong, brown, margin subentire.
	Leaves	Fronds erect, 9–11.5 cm long, never proliferous; stipe, 6–10 mm long, adaxially flattened, dull brown, 0.3–0.5 mm in diameter near base, with narrow, thin, greenish wings on either side of adaxial surface; blade 1– to 2-pinnate, narrowly oblong to oblong-lanceolate, 8–10.5 cm long, 1.5–2.2 cm wide at middle, reduced at base, tapering to pinnatifid non-conform apex, chartaceous, glabrate or with sparse, short brown hairlike scales on petiole, rachis and sometimes abaxial surface of pinnae, rachis green, winged as on stipe, pinnae 12–15 on a side, sessile or short-stalked, 3–11 mm long, 3–6 mm wide, ovate-oblong to triangular-ovate, apex acute to obtuse, basiscopic margin entire or with 1–3 deep lobes, acroscopic margin of proximal and middle pinnae deeply 1–3-lobed, teeth acute, often deeply incised into a cuneate basal lobe parallel to main rachis; veins radiating in fanshaped fashion from bases of pinnules, forking 1–3 times, ending before margin.
	Sori	Sori 2-6 per pinna, oblong, 1-1.5 mm long, usually medial on lobes; indusium thin, scarious.
	Notes	This rare, diminutive species is referable to Asplenium macraei from the Hawaiian Islands (Palmer 2003), but Marquesan plants differ in their smaller size, fronds with green rachises, and fewer and less divided pinnae.
	Contributor	David Lorence