Cone of horsetail Small 52×320 Medium 104×640 Large 167×1024 Download Tiff Original 391×2400 | (244.3 KB) Description Cone of horsetail. Keywords Botany, cone, horsetail, spore Galleries Trees: D-H Source: Finley, John H. Nelson's Perpetual Loose-Leaf Encyclopedia (New York City: Thomas Nelson and Sons, 1917) 11:387
