目前为止，中国西南野生生物种质资源库共保藏该物种: DNA材料13份; DNA5份; 离体材料10份;

• 科:鳞毛蕨科    Dryopteridaceae
• 属:贯众属    Cyrtomium
• 种:刺齿贯众   Cyrtomium caryotideum

26. Cyrtomium caryotideum (Wallich ex Hooker & Greville) C. Presl, Tent. Pterid. 86. 1836. 刺齿贯众 ci chi guan zhong Aspidium caryotideum Wallich ex Hooker & Greville, Icon. Filic. 1: t. 69. 1828; A. falcatum (Linnaeus f.) Swartz var. caryotideum (Wallich ex Hooker & Greville) Baker; Cyrtomium caducum (Wallich ex Hooker & Greville) T. Moore subvar. hastosum (Christ) H. Léveillé; C. caryotideum f. attenuatum (T. Moore) Ching; C. caryotideum var. attenuatum T. Moore; C. caryotideum f. grossedentatum Ching; C. caryotideum f. hastosum (Christ) Ching; C. caryotideum subvar. hastosum Christ; C. falcatum (Linnaeus f.) C. Presl var. caryotideum (Wallich ex Hooker & Greville) Beddome; C. falcatum subvar. hastosum Christ; Dryopteris caryotideum (Wallich ex Hooker & Greville) Underwood ex A. Heller; Polystichum caryotideum (Wallich ex Hooker & Greville) Diels; P. falcatum (Linnaeus f.) Diels var. caryotideum (Wallich ex Hooker & Greville) Matsumune.Plants 30-60 cm tall. Rhizome erect, densely covered with lanceolate blackish brown scales. Stipe stramineous, 16-32 cm, 2-3 mm in diam. at base, lower portion densely scaly; scales blackish brown or brown with a central blackish brown stripe, ovate or lanceolate, margins ciliate. Lamina oblong or oblong-lanceolate, 25-48 × 12-18 cm, base not contracted or slightly contracted, 1-imparipinnate, apex obtuse; rachis with sparse linear brown scales. Lateral pinnae 3-7 pairs, alternate, slightly ascendant, shortly stalked, deltoid-lanceolate, often falcate; middle pinnae 9-14 × 2.5-3.5 cm, base broadly cuneate or rounded-cuneate, acroscopic margins with long, acute auricles, margins serrulate, apex acuminate and often caudate; terminal pinna ovate or rhombic-ovate, forked or trifurcate, 10-16 × 8-11 cm; hard papery, abaxially with sparse lanceolate brown microscales, glabrous adaxially; venation pinnate, slightly raised abaxially, indistinct adaxially, veinlets anastomosing to form multiple rows of areoles on each side of midrib, each areole in proximal row with 1 included veinlet, each areole in other rows with 2 or 3 included veinlets. Sori throughout abaxial surface of pinnae; indusia white or light brown, margins toothed.Forests; 600-2700 m. Chongqing, S Gansu, N Guangdong, Guangxi, Guizhou, W Hubei, Hunan, Jiangxi (Jinggangshan), S Shaanxi, SW and W Sichuan, Taiwan, Xizang (Bomi, Gyirong, Mêdog), Yunnan [Bhutan, India, Japan, Nepal, Pakistan, Philippines, Vietnam].Cyrtomium caryotideum is an apomictic species.【引自：Flora of China】

植株高30-60厘米。根茎直立，密被披针形黑棕色鳞片。叶簇生，叶柄长16-32厘米，基部直径2-3厘米，禾秆色，腹面有浅纵沟，下部密生卵形及披针形黑棕色或棕色中间为黑棕色的鳞片，鳞片边缘有睫毛状齿，向上部渐秃净；叶片矩圆形或矩圆披针形，长25-48厘米，宽12-18厘米，先端钝，基部不变狭或略变狭，奇数一回羽状；侧生羽片3-7对，互生，斜向上，柄极短，卵状披针形，常向上弯成镰状，中部的长9-14厘米，宽2.5-3.5厘米，先端渐尖常成尾状，基部宽楔形或圆楔形上侧有长而尖的三角形耳状凸起，边缘有开张的小尖齿；具羽状脉，小脉联结成多行网眼，腹面不明显，背面微凸；顶生羽片卵形或菱状卵形，2叉或3叉状，长10-16厘米，宽8-11厘米。叶为坚纸质，腹面光滑，背面疏生披针形棕色小鳞片；叶轴腹面有浅纵沟，疏生线形棕色鳞片。孢子囊群遍布羽片背面；囊群盖圆形，盾状，边缘有齿。【引自：中国植物志】