Table 1.
Mean (± s.e.) estimated half lifetime and lignin content of the assimilatory organs of Nepenthes species
| Longevity, t0·5 (months) |
Lignin (%) |
|||
|---|---|---|---|---|
| Nepenthes species | Leaf | Pitcher | Leaf | Pitcher |
| N. albomarginata | 7·69 ± 1·37 | 3·46 ± 0·98 | 26·57 ± 0·53 | 23·45 ± 0·80 |
| N. ampullaria | 14·10 ± 3·90 | 2·40± 0·99 | 32·57 ± 2·09 | 24·39 ± 1·45 |
| N. bicalcarata | 9·71 ± 1·18 | 6·01 ± 1·85 | 30·09 ± 2·67 | 26·25± 0·67 |
| N. gracilis | 13·97 ± 2·34 | 2·96 ± 0·99 | 36·80± 0·55 | 32·90 ± 0·81 |
| N. mirabilis | 1·54 ± 0·43 | 0·93± 0·00 | 32·89 ± 0·57 | 31·23± 0·31 |
| N. rafflesiana var. typical | NA | NA | 31·87 ± 1·34 | 22·02 ± 0·12 |
| N. rafflesiana var. elongata | 5·59 ± 1·88 | 0·95 ± 0·31 | 31·09 ± 1·04 | 20·57 ± 0·29 |
| N. rafflesiana var. gigantia | 4·21 ± 0·78 | 1·10± 0·01 | 29·28 ± 0·39 | 17·92 ± 0·94 |
| Mean | 7·95 ± 1·25 | 2·77 ± 0·40 | 31·30 ± 0·76 | 24·81 ± 1·03 |
| F-ratio amongst species within organs | 6·58** | 2·41* | 4·42** | 31·74*** |
| F-ratio between organs | 9·78*** | 109·18*** | ||
For longevity, at the initiation of the survey, sample size (n) was ≥80 leaves or pitchers per species. For lignin content, data are based on leaves and pitchers from six sites per species with at least three readings per site.
* P < 0·05; ** P < 0·02, *** P < 0·01; NA, data not available.