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Dinghushan | Family List | Thelypteridaceae | Pseudocyclosorus

Pseudocyclosorus subochthodes (Ching) ching


Description from Flora of China

Thelypteris subochthodes Ching, Bull. Fan Mem. Inst. Biol., Bot. 6: 305. 1936; Cyclosorus subochthodes (Ching) L. J. He & X. C. Zhang; Dryopteris eberhardtii Christ var. glabrata Christ; Lastrea subochthodes (Ching) Tagawa.

Plants 90-110 cm tall. Rhizomes short and decumbent, dark brown, sparsely scaly. Fronds approximate or clustered; stipes 20-25 cm, bases dark brown and sparsely scaly, distally stramineous and glabrous; laminae oblong-lanceolate, 70-85 × ca. 20 cm, abruptly narrowed at bases, pinnate-pinnatifid, pinnatifid-acuminate at apices; proximal 3 or 4 pairs of pinnae abruptly reduced into triangular auricles; middle normal pinnae 26-28 pairs, subopposite or alternate, obliquely spreading, sessile, lanceolate, 10-15 × 1.2-2 cm, not or slightly narrowed to bases, rounded-cuneate, pinnatifid nearly to costae, pinnatifid and long acuminate at apices; segments 28-30 pairs, lanceolate, acroscopic one on proximal pair slightly elongated, others 7-9 × 2-3.5 mm, entire, acute or acuminate at apices. Veins evident on both sides, costules raised, 9 or 10 pairs of veinlets per segment, proximal pair arising above bases of costae, acroscopic veinlet reaching bottom of sinus, basiscopic one reaching margin above sinus. Laminae grayish green when dry, papery, glabrous on both intercostal areas, abaxially subglabrous or sparsely shortly hairy along rachises, costae, and veins, adaxially densely appressed-setaceous along costal grooves and with 1 or 2 setae along veins. Sori orbicular, attached above middle of veinlets and slightly closer to margin; indusia orbicular-reniform, thickly membranous, glabrous, persistent.

Wet places in mixed forests, rocks in valleys; 200-2000 m. S Anhui, Fujian, Guangdong, SE Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Yunnan, Zhejiang [Japan, Korea].

生活型: 草本

栽培植物: 野生

特征: 草本;

生境: 见于九坑山谷林下阴湿处

门中名: 蕨类植物门


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