Selliguea pui Hovenkamp
Selliguea pui Hovenkamp, Edinburgh J. Bot. 68: 265. 2011. – Crypsinus cruciformis auct. non (Ching) Tagawa: Tagawa & K.Iwats., Fl. Thailand 3: 559, f. 56.4–5. 1989; Boonkerd & Pollawatn, Pterid. Thailand: 266. 2000. – Selliguea cruciformis auct. non (Ching) Fraser-Jenk.: Lindsay & Middleton, Edinburgh J. Bot. 66: 356. 2009.
Rhizome long creeping, about 1–2 mm diam., densely scaly throughout; scales peltate, slightly spreading, light grey to pale brown, oblong with paler long tails, 4–5 by 1 mm, entire, dentate at apex. Stipes 1–4 cm long, stramineous, phyllopodia short, densely scaly, scales similar to those on rhizome. Laminae trilobed, or very rarely simple or 5- to 9-lobed, 5–15 by (2.2–)3.5–10.3 cm; the terminal lobes large, gradually narrowing from base to moderately acute apex, up to 8 by 2 cm; lateral lobes patent or slightly ascending, oblong or subdeltoid, rounded at apex, up to 5 by 1.7 cm, entire at margin; midrib raised on both surfaces; main veins, or often main branches of them also, dark on upper surface, raised on both surfaces, not straight, the other veins hardly visible, anastomosing; papyraceous, light green, paler beneath, glabrous. Sori one between adjacent main veins, in a single row at half-way between midrib and margin of lobes, in round or elliptic shallow cavities up to 2 mm diam., raised on upper surface.
Distribution in Thailand
NORTHERN: Chiang Mai, Chiang Rai, Uttaradit, Phitsanulok.
Endemic in Thailand.
On mossy tree trunks in evergreen forests on ridges at high altitudes, rather rare.
Proposed IUCN Conservation Assessment
Voucher specimens - Thailand
Palee 243, Chiang Mai (CMU); Middleton et al. 4873, Chiang Mai, Doi Suthep, near summit (E); Maxwell 97-1409, Chiang Rai (CMU); Norsaengsri & Intamusik 6222, Uttaradit (QBG); Suksathan 1704, Phitsanulok (QBG).
Lower surface of frond
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