顶育毛蕨 ding yu mao jue

Nephrodium terminans J. Smith ex Hooker, Sp. Fil. 4: 73. 1862; Amphineuron terminans (J. Smith ex Hooker) Holttum; Thelypteris terminans (J. Smith ex Hooker) Panigrahi.

Plants 40-100 cm tall. Rhizomes long creeping, including bases of stipes with brown linear-lanceolate scales. Fronds distant; stipes 20-55 cm, dark stramineous; laminae deltoid-lanceolate, 20-45 × 20-40 cm, bases not narrowed or slightly so, apices caudate with an apical pinna similar to lateral ones; lateral pinnae 10-15 pairs, subsessile; middle pinnae linear-lanceolate, 15-25 × 1-1.8 cm (usually narrowed toward bases), bases rounded-truncate, lobed 1/3-1/2 toward costae, apices long acuminate; segments 20-35 pairs, triangular, 3-4 × 3-4 mm, subacute or obtuse at apices; veinlets 6-8 pairs, proximal pair anastomosing, next 1-1.5 pairs running to sinus membrane. Laminae papery, brownish green or yellowish green when dried, adaxially shortly hairy along costae and veins, abaxial surface with short hairs along costae and veins, also with minute spherical sessile yellow glands along veins. Sori orbicular, marginal, sterile on proximal 2 or 3 pairs of veins, sometimes only top 2 or 3 veins fertile; indusia glabrous. Sporangia bearing golden glands on stalks. Spores cristate. 2n = 144.

Wet places in forests or thickets; 200-500 m. Hainan [India, Indonesia, Japan, Malesia, Myanmar, Thailand, Vietnam; Africa, N Australia, Pacific islands (Micronesia, Polynesia)].

The epithet is derived from "Aspidium terminans" (Wallich, Numer. List, no. 386. 1829; Kunze, Linnaea 23: 230. 1850), which is a nomen nudum and was not therefore validly published (Melbourne Code, Art. 38.1(a)).