Nepenthes adnata

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Nepenthes adnata

Description

Terrestrial climber to 3 m tall. Leaves coriaceous, sessile, subperfoliate-adnate, those of climbing stems narrowly oblanceolate, (6.8-)9-11 by 2.5-3.1 cm; Inflorescence reported as a short, lax raceme;

Distribution

C Sumatra present
C Sumatra.

Ecology

.

Morphology

2. The description above is based only on the holotype, supplemented with data from the protologue. The holotype is sterile, and lacks fully developed upper pitchers, e.g. those with a coiled tendril. Consequently our knowledge of this species is poor and fragmentary. 1 In its adnate-perfoliate leaves, slender glabrous stems, tentaculate lid, and diminutive, few-flowered, ebracteate raceme, seen in no other Sumatran species, N. adnata is clearly one of the N. tentaculata group, having many similarities especially with the most widespread and common of that group, N. tentaculata of Borneo and Sulawesi. Nonetheless, N. adnata has several features that distinguish it from N. tentaculata and most of the rest of the group. The leaves are 3- or 4-nerved with a brown hairy margin (not 1- or 2-nerved with a glabrous margin) and the pitchers have distinct peristome ribs with teeth on the inner edge near the column, conspicuous glands on the lower surface of the broadly ovate-round, cordate lid and a filiform, once-forked spur 7-9 mm long. In N. tentaculata, the peristome ribs are indistinct and teeth are absent, the glands are inconspicuous on a narrowly ovate to elliptic, truncate or round-based lid, and the spur is fasciculate, with up to 5 branches at the base, each themselves repeatedly branched.

Citation

Jebb & Cheek 1997 – In: Blumea: 14
Clarke 1997: p. 7. – In: Carnivorous Plant Newsl.: fig. front cover