From: Reproductive biology of an endangered lithophytic shrub and implications for its conservation
Characters | Sample size | Range | Mean ± SD |
---|---|---|---|
Pedicel length (mm) | 30 | 2.61–18.10 | 9.96 ± 3.94 |
Flower length (mm) | 60 | 11.67–32.74 | 21.37 ± 5.19 |
Corolla length (mm) | 60 | 5.71–13.47 | 9.15 ± 1.80 |
Corolla diameter (mm) | 60 | 5.30–12.38 | 9.21 ± 1.75 |
Tube length (mm) | 60 | 2.52–5.45 | 4.03 ± 0.78 |
Tube width (mm) | 60 | 0.62–3.24 | 2.13 ± 0.48 |
Stamen height (mm) | 300 | 5.87–13.72 | 9.43 ± 1.57 |
Stigma height (mm) | 60 | 5.85–9.80 | 8.00 ± 0.97 |
Number of pollen grains (P) | 36 | 12,700–25,840 | 18,902.22 ± 3178.38 |
Number of ovules (O) | 36 | 4–11 | 8.33 ± 1.22 |
Ratio of pollen grains to ovules (P/O) | 36 | 1155–4710 | 2353.94 ± 686.74 |