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

13. Bolbitis subcordata (Copeland) Ching in C. Christensen, Index Filic., Suppl. 3: 50. 1934.

华南实蕨 hua nan shi jue

Campium subcordatum Copeland, Philipp. J. Sci. 37: 369. 1928; Bolbitis formosana Tagawa; B. media Ching & Chu H. Wang; B. nakaii H. Itô; B. subcordata var. media (Ching & Chu H. Wang) S. H. Wu.

Rhizome shortly creeping, 8-15 mm in diam., covered with lanceolate, clathrate, subentire, brown or blackish scales. Fronds ± close together, 60-120 cm; sterile fronds pinnate, 20-110 × 15-28 cm; stipe 8-45 cm, densely scaly near base, bearing small scales at apex, with 5-9 vascular bundles; lamina dark green or brownish, 12-65 cm, widest below middle, herbaceous, terminal segment narrowly triangular, longer to shorter than central pinnae, base trifid; rachis not winged; pinnae 6-15 pairs, opposite below middle, base broadly cuneate to subcordate, margin usually lobed to 1/3 toward costa, crenate-serrate, with a prominent tooth in each sinus, apex acuminate; secondary veins slightly prominent; veins forming a costal areole and distal areoles, part of areoles with usually 1 simple, excurrent free vein. Fertile fronds 30-125 cm; stipe 15-70 cm; pinnae 6-25 pairs, 2-6 cm apart, 4-8 × ca. 1 cm, lowermost 2 pinnae 1-7 mm stalked. Sporangia inserted throughout abaxial surface, arrangement acrostichoid. 2n = 82.

Forests, near streams; below 100-600 m. Fujian, Guangdong, Guangxi, Hainan, Jiangxi, Taiwan, Yunnan, Zhejiang [Japan, Vietnam].


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