Nepenthes
Cheek, M., 2015, Nepenthes (Nepenthaceae) of Halmahera, Indonesia, Blumea 59 (3), pp. 215-225 : 217
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publication ID |
https://doi.org/10.3767/000651915X689091 |
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persistent identifier |
https://treatment.plazi.org/id/03C4A901-606D-E458-FFD8-FB453DB56526 |
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treatment provided by |
Felipe |
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scientific name |
Nepenthes |
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Key to the paniculate species of SE Asian Nepenthes View in CoL
1. Lower pitchers subglobose; ratio of width of peristome outer: inner edges 1: 10.............................. 2
1. Lower pitchers ovoid or ovoid-cylindric; ratio of width of peristome outer: inner edges <1: 5................ 3
2. Lower pitchers orange, with a pair of spur-like teeth descend- ing from the apex of the lid column; ratio of lid length: breadth c. 1: 1. — N Borneo.................. N. bicalcarata View in CoL
2. Lower pitchers green and/or red, without spur-like teeth, lid column absent, ratio of lid length: breadth> 5: 1. — Borneo, Sumatra, Peninsular Malaysia, New Guinea........................................... N. ampullaria View in CoL
3. Longitudinal nerves confined to the outer 1/3 of leaf blade. — Mainland of New Guinea......................... 4
3. Longitudinal nerves present throughout the blade. — Islands in Wallacea, Isle of Waigeo....................... 5
4. Upper pitchers widest at mouth; partial-peduncles racemose................................... N. paniculata View in CoL
4. Upper pitchers narrowing to mouth; partial-peduncles corymbose............................ N. neoguineensis View in CoL
5. Indumentum of bushy,branched hairs; lid nectar glands> 100, tiny, 0.1–0.2 mm diam. — Sulawesi ....... N. tomoriana View in CoL
5. Indumentum of simple hairs; lid nectar glands few 2–30, large, 0.3–1.2 mm diam. — Halmahera, Waigeo. View in CoL ..... 6
6. Lower surface of lid with subapical appendage in rosette and upper pitchers; nectar glands absent from midline. — Bukit Limber, Halmahera....................... N. weda View in CoL
6. Lower surface of lid lacking appendages; nectar glands present on midline.............................. 7
7. Partial-peduncles ebracteate; aperture of each lid nectar glands> 50 % covered by borders; teeth conspicuous on inner edge of peristome (upper pitchers); upper pitchers rarely present (c. 1 per stem). — Waigeo island. N. danseri View in CoL
7. Partial-peduncles bracteate; aperture of each lid nectar gland <10 % covered by borders; teeth not visible on inner edge of peristome (upper pitchers); upper pitchers frequent (3–6 per stem). — Weda Bay, Halmahera. View in CoL ..... N. halmahera View in CoL
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