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

18. Cyclosorus procerus (D. Don) S. Lindsay & D. J. Middleton, Nordic J. Bot. 30: 308. 2012.

高毛蕨 gao mao jue

Nephrodium procerum D. Don, Prodr. Fl. Nepal. 6. 1825; Aspidium procerum (D. Don) Sprengel; Christella appendiculata Holttum; Cyclosorus appendiculatus Panigrahi (1993), not (Blume) Ching (1941); C. dulongjiangensis W. M. Chu; N. appendiculatum C. Presl (1851), not Schott (1834); Thelypteris procera (D. Don) Fraser-Jenkins.

Plants 60-120 cm tall. Rhizomes long creeping, including stipe bases with brown lanceolate scales. Fronds distant; stipes 20-40 cm, stramineous; laminae 40-90 × 20-30 cm, bases slightly narrowed, apices acuminate; lateral pinnae 20-30 pairs, proximal 2-5 pairs slightly shortened; middle pinnae lanceolate, 8-18 × 1.5-4 cm, bases truncate, lobed 4/5 or more toward costae, apices long acuminate; segments 20-30 pairs, lanceolate, 10-15 × 2-3 mm, entire (basal acroscopic segment longer and crenate), pointed or acute at apices; veinlets 10-15 pairs, basal pair anastomosing. Laminae herbaceous, yellowish green when dried, with sparse long pale acicular hairs along abaxial surface of rachises and both sides of veins, and minute yellow glands along veins abaxially, glabrous between veins on both surfaces. Sori orbicular, submarginal; indusia very small, glabrous or with several long acicular hairs. Sporangia bearing small orange glands on stalks. Spores variously winged, tuberculate, or echinate.

Semi-open places in sparse forests, roadsides; 1100-2400 m. SE Xizang, W Yunnan [Bhutan, N India, Nepal, Thailand].

K. H. Shing (FRPS 4(1): 202. 1999) mentioned that the type of Cyclosorus dulongjiangensis might be a hybrid and needed further research. We have examined the type in PYU, and the spores appeared well developed; thus, the spores of this species do not support its putative hybrid status.


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