青岩假毛蕨 qing yan jia mao jue

Christella cavaleriei H. Léveillé, Fl. Kouy-Tchéou, 474. 1915.

Rachises subrectangular; middle pinnae spreading, alternate, ca. 18 × 3 cm, pinnate-pinnatifid, pinnatifid-acuminate at apices; segments ca. 35 pairs, separated by broad sinuses, lanceolate, ca. 1 × 0.4 cm, acute at apices; proximal pair clearly elongated, to 1.5 cm, proximal pair on segments reaching bottom of sinuses. Sori orbicular, attached above middle of veinlets and close to margins, ca. 10 pairs per segment.

● Guizhou (Guiyang).

The present authors have not seen a complete specimen of Pseudocyclosorus cavaleriei. The type of P. cavaleriei was collected by Cavalerie on 5 August 1903, from Guiyang Ging-yan (Tsin Gai), Guizhou province, no. 1244 (E). It has the middle part of the lamina and seven pairs of pinnae. Ching examined the specimen and identified it as Dryopteris tylodes in 1931. The species was included within Thelypteris esquirolii (Christ) Ching by Holttum in 1936 and later in P. esquirolii (species no. 21 in this account) (Holttum & Grimes, Kew Bull. 34: 514-515. 1980).

The subrectangular rachises, opposite pinnae, and proximal pair of veinlets reaching bottom of sinuses suggest that the species should not be included in Pseudocyclosorus esquirolii, but is instead closer to P. tylodes. However, the sori attached on distal parts of veinlets and close to margins are different from those of specimens of P. tylodes. So, it is here treated as an independent species, and we hope that more specimens of this species will be collected for study.