“Adianium pedatum: transverse section of stem, showing the amphiphloic siphonostele.” -Stevens, 1916
William Chase Stevens Plant Anatomy (Philadelphia, PA: P. Blakiston, 1916)
2400×2334, 1.3 MiB
1024×995, 276.9 KiB
640×622, 145.0 KiB
320×311, 50.1 KiB