Nepenthes densiflora

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Nepenthes densiflora

Description

Terrestrial climber, to 2.5 m tall. Leaves thinly coriaceous, sessile, obovate to obovate-lanceolate or slightly spathulate, 3-15 by 1-3.2 cm, apex acute to rounded, base attenuate, clasping the stem for 3/4 of its circumference. Fruit valves 15-20 by 5 mm. Seeds fusiform, c. 8 mm long.

Distribution

Aceh province present, Asia-Tropical: Sumatera (Sumatera present), G. Leuser National Park present
Sumatra: Aceh province ( G. Leuser National Park).

Morphology

Among the Sumatran species, N. densiflora can only be confused with N. bongso s.l. or N. ovata, which share infundibuliform upper pitchers, which are constricted below the mouth. From N. bongso it differs by the more abrupt origin of the pitcher from the tendril (in the latter the curve of the lower pitcher is broad, and the pitcher widens gradually), the clasping, non-auriculate leaf bases, and the larger lid glands. From N. ovata it differs by its lack of an appendage on the lower surface of the lid. Nepenthes diatas, which occurs in the same area as N. densiflora and which is probably closely related, is distinguished by its ventricose-tubular pitcher, and stiff, almost woody peristome.

Citation

Schlauer & Nerz 1994 – In: Blumea: 140
Jebb & Cheek 1997 – In: Blumea: 33
Steenis 1938: p. 750. – In: Tijd. Kon. Aardrijksk. Genootsch.: ic. 7