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FOC | Family List | FOC Vol. 2-3 | Thelypteridaceae

11. Glaphyropteridopsis Ching, Acta Phytotax. Sin. 8: 320. 1963.

方杆蕨属 fang gan jue shu

Authors: Youxing Lin & Kunio Iwatsuki

Plants medium-sized to large, terrestrial, ± with acicular hairs. Rhizomes short and thick, decumbent or ascending, sessile, with sparse scales. Fronds clustered or approximate; stipes strong, with sparse brown lanceolate scales at bases; laminae elliptic, not tapering to bases, pinnate-pinnatifid; pinnae large, linear-lanceolate, sessile, free, opposite or subopposite, pinnatifid nearly to costae; rachises rectangular abaxially, flat, glabrous or with sparse short hairs, when dry reddish, costae grooved adaxially and densely hairy abaxially; segments large, falcate-lanceolate. Veins free, pinnate on segments, veinlets simple, prominent and reaching margins, proximal pair only reaching nearby line of transparent membrane below sinus or to margins above sinuses. Laminae herbaceous, papery or leathery, when dry yellowish green, rachises and costae ± with grayish white long hairs on both sides, not glandular. Sori orbicular, attached at bases of veinlets, in a row on each side close to costules, usually confluent into a line when mature, exindusiate or indusiate. Sporangia usually with acicular hairs near tops. Spores elliptic, bilateral, irregularly echinate or small tuberculate on surfaces. x = 12(36).

Twelve species: Bhutan, China, N India, S Japan, N Myanmar, Nepal, Philippines, N Vietnam; 11 species (ten endemic) in China.

1 Sori exindusiate   (2)
+ Sori indusiate   (3)
2 (1) Sporangia glabrous.   1 G. erubescens
+ Sporangia bearing hairs.   2 G. sichuanensis
3 (1) Sori obviously indusiate   (4)
+ Sori with small scale-shaped indusia, usually obscured by mature sporangia and not easily seen   (7)
4 (3) Indusia glabrous.   8 G. jinfushanensis
+ Indusia with acicular hairs   (5)
5 (4) Rachises, costae, veins, and intercostal areas all glabrous abaxially.   9 G. glabrata
+ Rachises, costae, veins, and intercostal areas abaxially all with dense acicular hairs   (6)
6 (5) Laminae glabrous adaxially on intercostal area, sporangia glabrous.   10 G. villosa
+ Laminae adaxially with short setae on intercostal area, sporangia bearing dense acicular hairs.   11 G. rufostraminea
7 (3) Sporangia glabrous   (8)
+ Sporangia bearing hairs   (9)
8 (7) Plants over 1 m tall; proximal pair of veins from adjacent segments reaching bottom of sinuses.   3 G. mollis
+ Plants normally 50-60 cm tall; proximal pair of lateral veins on segments reaching margins above sinuses.   4 G. emeiensis
9 (7) Proximal pair of veinlets on segments reaching both sides of bottom of sinuses; rachises, veins, and intercostal areas glabrous.   5 G. eriocarpa
+ Proximal pair of veinlets on segments reaching margins above sinuses; rachises, veins, and intercostal areas ?with short setae or acicular hairs   (10)
10 (9) Rachises, costae, and veins all with dense long acicular hairs, laminae only with short setae abaxially, glabrous on intercostal areas; Sichuan.   6 G. splendens
+ Rachises with sparse short setae abaxially, costae and veins with sparse long setae, laminae with sparse setae on veins and intercostal areas; Yunnan.   7 G. pallida

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