Tapeinidium pinnatum
Content
Distribution
Asia-Temperate: Taiwan (Taiwan present), Asia-Tropical: Borneo present; Malaya present (Singapore present); Philippines (Philippines present); Sulawesi (Sulawesi present); Sumatera (Sumatera present); Thailand (Thailand present), Banka present, Lingga Is present, Riouw present, Ryu Kyu Is present, S. India present, W. Java present
S. India, Thailand, Ryu Kyu Is., Taiwan; in Malesia: Malaya, Singapore, Riouw and Lingga Is., Banka, Sumatra, W. Java, Borneo, Celebes, Philippines. Reports from elsewhere due to confusion with T. longipinnulum and T. melanesicum. .
Notes
Juvenile plants have relatively broader, serrate pinnae, but apart from their size they are similar to adult ones.
In Luzon there is a form with dark, often pale-margined petiole and abaxially narrowed- rounded rather than carinate rachis; the pinnae are smaller and narrower than in the typical form which is much more common on the island. A fairly uniform series of this form, Jacobs 7852 (L), would seem to indicate that it is more than an accidental, phenotypic form; but it is neither very strongly nor very sharply distinct from typical T. pinnatum and therefore left unnamed.
In Luzon there is a form with dark, often pale-margined petiole and abaxially narrowed- rounded rather than carinate rachis; the pinnae are smaller and narrower than in the typical form which is much more common on the island. A fairly uniform series of this form, Jacobs 7852 (L), would seem to indicate that it is more than an accidental, phenotypic form; but it is neither very strongly nor very sharply distinct from typical T. pinnatum and therefore left unnamed.