Table 1.
Main morphological differences between Nepenthespudica and related species, including N.leptochila, which is not recognised by most researchers. The characters that best differentiate N.pudica from the other species are in bold.
| Characteristic | N.hirsuta | N.hispida | N.pudica | N.leptochila |
|---|---|---|---|---|
| short basal shoots | aboveground | aboveground | underground | aboveground |
| stem indumentum | hairy | hairy | ±glabrous | ±glabrous |
| stem colour | brown | purplish grey | brownish green to purplish | reddish |
| climbing shoot leaf shape | obovate | oblanceolate to oblong | oblanceolate | obovate-lanceolate |
| climbing shoot leaf width | 3–6 cm | 1.8–3.3 | up to 4.5 cm | 2.5–5.5 cm |
| climbing shoot leaf | petiolate | sessile | petiolate | shortly petiolate |
| climbing shoot leaf base | semi-amplexicaul | decurrent-amplexicaul | auriculate, shortly decurrent | auriculate, hardly decurrent |
| climbing shoot leaf texture | thin-coriaceous | thin-coriaceous | coriaceous | chartaceous |
| climbing shoot leaf apex | acute or rounded | acuminate to obtuse | acute | acute, obtuse or rounded |
| longitudinal veins | 3–4 | 3 | 2–4 not prominent | 5 |
| tendril indumentum | hairy | hairy | hairy or glabrous | glabrous? |
| upper pitchers | few | common | rare | present |
| lower pitcher colour | green | green or red blotched | red | ? |
| adult pitcher indumentum | hairy | hairy | ±glabrous | glabrous? |
| lower pitcher shape | ovoid | ovoid-ellipsoid | ventricose | ovoid-ellipsoid |
| lower half of lower pitcher | ovoid | ovoid-ellipsoid | ovoid to globose | ovoid to globose |
| upper half of lower pitcher | conical | subcylindrical, tapering | infundibular | ~cylindrical, tapering |
| lower pitcher length | up to 15 cm | 5–8.5 cm | 7–11 cm | up to 8 cm |
| lower pitcher width | up to 7 cm | 1.5–3 cm | 3–5.5 cm | up to 3 cm |
| eglandular zone | almost absent | nearly 1/2 of the surface | nearly 1/2 of the surface | 1/3 of the surface |
| peristome width | up to 6 mm | 0.5–1.2 mm | up to 2 mm | up to 1.5 mm |
| peristome in section | cylindrical or flattened | cylindrical | cylindrical | cylindrical or flattened |
| male flowers | in pairs | single or rarely in pairs | in pairs | ? |
| androphore length | 3.5–6 mm | 1.5–2 mm | ~4 mm | ? |
| ecology | ridgetops | heath forest | ridgetops | ? |
| elevational distribution | 0–1000 m | 100–800 m | 1100–1300 m | ~300 m |