Schizaea digitata (L.) Wall. ex J. Sm., 1806
|Common Names:||Grass Fern|
This is a small fern with a very short, 3-4 cm, creeping or somewhat ascending rhizome with the apex covered with brown hairs. The fonds are erect, simple, grass-like, 20-35 cm long and 2-3.5 mm wide, each with a prominent midrib. About 18 fertile lobes are borne at the apex of the fronds, each 2.5-4 cm long and a little over 1 mm wide. The sporangia are arranged in two rows, one on each side of the midrib, that alomost cover the lower surface of the lobes.
Madagascar to tropical Asia to Polynesia,
Seletar, Pulau Ubin...
This is a grass-like fern that is easily overlooked. They grow in rather open forests and in rubber estates.
For an account of the life history of a fern, see Pyrrosia piloselloides. However, unlike most other ferns, the gametophytes are subterranean and filamentous, the cells associated with an endophytic mycorrhizal fungus.
de Winter, W. P. & V. B. Amoroso (eds.), 2003. Plant resources of South-East Asia No. 15(2). Cryptogams: Ferns and fern allies. Prosea Foundation, Borgor, Indonesia. 268 pp.
Holttum, R. E., 1966. A revised flora of Malaya. II Ferns of Malaya. Govt. Printing Office, Singapore (2nd ed.). 653 pp.
Parris, B. S., R. Khew, R. C. K. Chung, L. G. Saw & E. Soepadmo (eds.), 2010. Flora of Peninsular Malaysia. Series I: Ferns and Lycophytes. Vol. 1. Malayan Forest records No. 48. Forest Research Institute of Malaysia, Kepong. 249 pp.
Wee, Y. C., 2005. Ferns of the tropics. Times Editions-Marshall Cavendish, Singapore. 2nd ed. 190 pp.
Wee Yeow Chin