球腺肿足蕨 qiu xian zhong zu jue

Hypodematium fauriei (Kodama) Tagawa f. glanduloso-pilosum Tagawa, J. Jap. Bot. 27: 321. 1952.

Plants 12-56 cm tall. Rhizomes prostrate, densely scaly together with swollen stipe base; scales reddish brown, lanceolate, 1-1.5 cm × 1-3 mm, membranous, margin entire, apex acuminate. Fronds approximate; stipe brownish stramineous, 4-27 cm × 1-3 mm, densely covered with white, short hairs and golden, rod-shaped glands; lamina broadly ovate, 7-29 × 4-25 cm, herbaceous, both surfaces sparsely hairy, densely covered with hairs and rod-shaped glands along rachis, costae, and costules, sometimes mixed with reddish brown, linear-lanceolate scales, cordate and 4-pinnatifid at base, acuminate and pinnatifid at apex; pinnae 6-12 pairs, oblique, lower 1 or 2 pairs opposite, 1.5-5.5 cm apart, upper pairs alternate or subopposite; basal pinnae largest, ovate-oblong, 3-19 × 1.5-10 cm, 3-pinnatifid, base cordate, with a short stalk, apex shortly acuminate; ultimate pinnules 5-9 pairs, basal pairs largest, oblong, 5-20 × 2-10 mm, base cuneate and decurrent, pinnatifid, apex obtuse; segments oblong, entire or with a few crenations at base; second and upper pairs of pinnae gradually shorter, oblong-lanceolate, base subtruncate, 2-pinnatifid, apex shortly acuminate or acute. Veins obvious on both surfaces, oblique, ending at margin. Sori orbicular, 1-3 per segment, at middle of veinlets; indusia grayish brown or grayish white, reniform, densely covered with short hairs, usually mixed with a few glands.

Limestone crevices. SW Fujian, S Henan, S Jiangsu [Japan, Korea, Thailand].