“Betula lenta. 1. male flowers; 2. female flowers; 3. perpendicular section of a ripe fruit; 4. transverse section of it.” -Lindley, 1853
Lindley, John The Vegetable Kingdom (London, England: Bradbury & Evans, 1853)
1068×2400, 419.7 KiB
455×1024, 68.3 KiB
284×640, 34.8 KiB
142×320, 11.5 KiB