尖齿贯众 jian chi guan zhong

Cyrtomium ovale Ching & K. H. Shing.

Plants 25-50 cm tall. Rhizome erect, densely covered with lanceolate brown scales. Stipe stramineous, 10-18 cm, ca. 2 mm in diam. at base, lower portion scaly; scales brown, ovate or lanceolate, margins toothed. Lamina lanceolate, 22-40 × 10-12 cm, base slightly wider, 1-imparipinnate, apex acute; rachis glabrous. Lateral pinnae 8-13 pairs, alternate, slightly ascendant, shortly stalked, ovate; middle pinnae 5.5-7 × 2.2-3 cm, base oblique, serrulate, acroscopic margins truncate, basiscopic margins broadly cuneate, apex acute or acuminate; terminal pinna ovate or rhombic-ovate, forked or not forked, 4-5 × 2.2-3 cm; papery, glabrous on both surfaces; venation pinnate, conspicuous on both surfaces, veinlets anastomosing to form 3 rows of areoles. Sori throughout abaxial surface of pinnae; indusia margins entire.

● Forests; 200-700 m. Hunan (Yuelu Shan), Sichuan (Emei).

Cyrtomium serratum is an apomictic species.