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FOC | Family List | FOC Vol. 2-3 | Dryopteridaceae | Arachniodes

30. Arachniodes similis Ching, Bull. Bot. Res., Harbin. 6(3): 19. 1986.

相似复叶耳蕨 xiang si fu ye er jue

Rhizome creeping, succulent at growing apex, moderately scaly; scales pale brown, linear-lanceolate, thin and soft. Fronds remote, 90-100 cm; stipe ochraceous, 45-50 cm, ca. 5 mm in diam., base scaly as rhizome, upward glabrescent, occasionally with a few pale brown curved threadlike scales; lamina 2-pinnate, dull green when dried, oblong, 50-60 × 20-25 cm, thickly papery, base cuneate, apex abruptly narrowed, with a conform terminal pinna, rachis glabrescent; pinnae 7 or 8 pairs, with 1-1.5 cm stalk, alternate, strongly ascending (forming an angle of less than 30 degrees with rachis); lower 3 or 4 pairs of pinnae similar in shape and size, lanceolate, ca. 19 × 3.5 cm, base almost equally sided, broadly cuneate, apex acuminate; pinnules ca. 22 pairs, shortly stalked, spreading, subimbricate, broadly rhombic, ca. 2 × 1 cm, base acroscopically slightly auriculate, basiscopically truncate, apex acute, margin serrate with mucronate teeth; upper pinnae slightly shorter, terminal pinna ca. 19 × 4 cm; axes, pinna, and pinnules (and veins as well) with sparse brown threadlike scales abaxially. Sori large, terminal on veinlets, 5 or 6 pairs per ultimate segment, medial between midvein and margin; indusia brown, firmly membranous, hairy on dorsal surface, margin entire.

● Forested slopes; (500-)700-800 m. Guangdong (Heyuan), SW Zhejiang.


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