Lindsaea doryphora
Content
Distribution
Asia-Tropical: Borneo present; Malaya (Peninsular Malaysia present, Singapore present); Philippines (Philippines present); Sumatera (Sumatera present), Leyte present, Lingga Is present, Mindanao present, Natuna Is present, Negros present, S. Thailand present, Sipora present, Tenasserim present, West Java present
Tenasserim, S. Thailand, in Malesia: Malay Peninsula, Singapore, Sumatra, Sipora, Natuna Is., Lingga Is., West Java (rare), Borneo, Philippines (Negros, Leyte, Mindanao). .
Notes
This species was described by Holttum as a variety of L. scandens (= L. parasitica); in the present treatment the two species are placed in different subgenera. Yet the similarity between them is striking, and detached leaves, without the rhizome, are sometimes difficult to determine as the one or the other. The following additional characters may help in determining such incomplete specimens:
L. doryphora: lamina of simply pinnate leaves hardly or not narrowed at base; sterile pinnule- margin crenate, especially near the apex; groove of rachis (adaxial) narrow, quite concave; indusium falling short of the margin by its width or more; colour of dry pinnules dark green or olivaceous.
L. parasitica: lamina of simply pinnate leaves gradually narrowed to base; sterile pinnule-margin entire or faintly sinuate; groove of rachis (adaxial) broad, flat- or convex-bottomed; indusium falling short of the margin by its width or less; colour of dry pinnules often blackish.
L. doryphora: lamina of simply pinnate leaves hardly or not narrowed at base; sterile pinnule- margin crenate, especially near the apex; groove of rachis (adaxial) narrow, quite concave; indusium falling short of the margin by its width or more; colour of dry pinnules dark green or olivaceous.
L. parasitica: lamina of simply pinnate leaves gradually narrowed to base; sterile pinnule-margin entire or faintly sinuate; groove of rachis (adaxial) broad, flat- or convex-bottomed; indusium falling short of the margin by its width or less; colour of dry pinnules often blackish.