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FOC | Family List | FOC Vol. 2-3 | Hypodematiaceae | Hypodematium

6. Hypodematium squamuloso-pilosum Ching, Fl. Jiangsu. 1: 465. 1977.

鳞毛肿足蕨 lin mao zhong zu jue

Hypodematium squamuloso-pilosum var. ishingensis Y. C. Lan.

Plants 12-30 cm tall. Rhizomes prostrate, densely scaly together with swollen stipe base; scales reddish brown, lustrous, narrowly lanceolate, 1-1.5 cm × 1-1.5 mm, membranous. Fronds approximate; stipe stramineous, 5-18 cm × ca. 1 mm, densely covered with grayish white hairs; lamina ovate-oblong, 7-15 × 6-12 cm, herbaceous, both surfaces densely hairy, base cordate, 3- or 4-pinnatifid, acuminate and pinnatifid at apex; rachis and costae densely covered with long hairs, sometimes mixed with glandular hairs and reddish brown, curly, linear scales; pinnae 8-12 pairs, slightly oblique, lower 2 pairs 2-3.5 cm apart, basal pair opposite and largest, oblong-lanceolate, 5-8 × 2.5-3.5 cm, 2- or 3-pinnatifid, base cordate, with a short stalk, apex shortly acuminate; pinnules 6-8 pairs, anadromous, alternate, oblique, shortly stalked, acroscopic ones smaller, proximal basiscopic pair largest, oblong to ovate-oblong, 1.5-3 × 1-1.5 cm, base truncate, decurrent and forming narrow wings, 1- or 2-pinnatifid, apex obtuse; ultimate pinnules 5-8 pairs, alternate, slightly oblique, oblong, base cuneate and decurrent, pinnatifid, apex obtuse; segments ovate, with 1 or 2 serratures at apex; second and upper pairs of pinnae gradually shorter, alternate, oblong-lanceolate, 2-pinnatifid. Veins obvious on both surfaces, pinnate, ending at margin. Sori orbicular, 1-3 per segment, located at middle of veinlets; indusia persistent, grayish brown, reniform, medium-sized, densely covered with hairs. Spores ellipsoid, bearing inflated, transparent folds.

● Limestone crevices within forests. Anhui, Fujian, Guizhou (Tongren), Hebei, Hubei, Hunan, S Jiangsu, Jiangxi, Shandong, Shanxi, Zhejiang.


 

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