6. Macrothelypteris torresiana (Gaudichaud) Ching, Acta Phytotax. Sin. 8: 310. 1963.
普通针毛蕨 pu tong zhen mao jue
Polystichum torresianum Gaudichaud, Voy. Uranie, Bot. 8: 333. 1828; Aspidium mollissimum Christ; A. uliginosum Kunze; Dryopteris lasiocarpa Hayata; D. mollissima (Christ) C. Christensen; D. oligophlebia (Baker) C. Christensen var. lasiocarpa (Hayata) Nakai; D. tenericaulis (Wallich ex Hooker) Ching; D. uliginosa (Kunze) C. Christensen; Lastrea oligophlebia (Baker) Copeland var. lasiocarpa (Hayata) H. Itô ex M. Mizushima; L. tenericaulis (Wallich ex Hooker) T. Moore; L. torresiana (Gaudichaud) T. Moore; Nephrodium tenericaule (Wallich ex Hooker) Hooker; Polypodium tenericaule Wallich ex Hooker; P. trichodes J. Smith; Thelypteris oligophlebia (Baker) Ching var. lasiocarpa (Hayata) H. Itô; T. torresiana (Gaudichaud) Alston; T. uliginosa (Kunze) Ching.
Plants 60-150 cm tall. Rhizomes short, erect or ascending, with dense reddish brown hairy linear-lanceolate scales at apices. Fronds clustered; stipes 30-70 cm, grayish green, when dry stramineous, bases shortly hairy, distally subglabrous; laminae triangular-ovate, 30-80 × 20-50 cm, not tapering at bases, 3-pinnate, acuminate and pinnatifid at apices; pinnae ca. 15 pairs, subopposite, stalks 2-2.5 cm; proximal pairs largest, oblong-lanceolate, 10-30 × 4-12 cm, bases slightly tapering, acroscopic sides parallel with rachises, 2-pinnate, apices acuminate; pinnules of 1-pinnate laminae 15-20 pairs, alternate, distal ones ± adnate to costae and decurrent and connected to each other, proximal several pairs shortly stalked, lanceolate, 3-10 × 0.8-2 cm, rounded-truncate at bases, pinnatifid, acuminate at apices; segments 10-15 pairs, approximate, lanceolate, 4-12 × 2-3 mm, bases connected to each other by narrow wings, margins entire or often sharply lobate, apices obtuse or bluntly pointed; second pair of pinnae of similar shape as proximal pair, but not tapering at bases and gradually shortened. Veins not evident, veinlets simple or forked on sharply lobate segments, 3-7 pairs per segment. Laminae herbaceous, when dry dark brownish green, with more grayish white multicellular spreading long acicular hairs and capitate short glands abaxially, adaxially with short hairs along costae and costules, rachises and costae stramineous, glabrous abaxially, adaxially with multicellular slender hairs. Sori small, 2-6 pairs per segment, attached near ends of veinlets; indusia small, orbicular-reniform, greenish, hidden in mature sori. Sporangia each with 2 or 3 capitate short hairs at top. 2n = 144, 186.
Wet places in mountain valleys; sea level to 1000 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Myanmar, Nepal, Philippines, Vietnam; tropical and subtropical regions of America, Australia, Pacific islands].