Studies of the Chinese Woodsiaceae (2) — Comparative Morphology and Anatomy of Mature Sporophytes

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Studies of the Chinese Woodsiaceae (2) — Comparative Morphology and Anatomy of Mature Sporophytes

Ma Yi-Lun

(Institute of Botany, Academia Sinica, Beijing)

Received:1900-01-01 Revised:1900-01-01 Online:1987-04-18 Published:1987-04-18
Contact: Ma Yi-Lun

Abstract

Abstract:

the comparative studies of morphology and anatomy of 19 species of Chinese

Woodsiaceae are reported in the present paper. It includes anatomy of root, rhizome, rachis

and joint on stipe; comparative morphology of the fronds and its parts, trichomes and indusia

and an observation of the spores under SEM. The information is applied to discussing phylo-

geny and systematics briefly. The anatomical studies do provide taxonomic studies with evi-

dence so that they should not be abandoned. For example, the stipe joints of Woodsia have

two types, the stipe joint below the attachment point of the base pair of pinnae and the stipe

joint just at the attachment point of that; the abscission layer of the former does not have pin-

na trace in it and the basic chromosome number is 39. However, the abscission layer of the

latter does and the basic chromosome number is 41. It is obvious that the anatomical cha-

racters can be used for infrageneric subdivision of Woodsia.

Key words: woodsiaceae, root, rachis, joint, spore, comparative morphology, comparative anatomy

Ma Yi-Lun. Studies of the Chinese Woodsiaceae (2) — Comparative Morphology and Anatomy of Mature Sporophytes[J]. .

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