Table 1.
Geographical position and climatological data of sampling sites
| Name of the taxa | Sample collection site | Site description | Geographical position | Altitude (m) | Mean annual temperature (minimum) (°C) | Mean annual temperature (maximum) (°C) | Mean annual temperature (average) (°C) | Mean annual rainfall (mm) |
|---|---|---|---|---|---|---|---|---|
| Ampelopteris prolifera | Kalyani University |
Open Shade |
22.9751° N, 88.4345° E | 11 | 19.2 | 30.5 | 26.3 | 1345 |
| Chakdaha |
SemiShade Shade |
23.0479° N, 88.5130° E | 11 | 19 | 30 | 26.3 | 1353 | |
| Kalyani Expressway |
Open Shade |
22.9751° N, 88.4345° E | 11 | 19.2 | 30.5 | 26.3 | 1345 | |
| Thelypteris interrupta | Magra (near Abacus Institute) |
Open Beside railway track Dry habitat |
23.12205° N, 88.2879° E | 16 | 16 | 38 | 26.8 | 1500 |
| Halisahar |
Open Swampy area |
22.932° N, 88.419° E | 15 | 19 | 45 | 26.8 | 1579 |