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(a) Philodendron billietiae; (b) P. quinquenervium; (c) P. maximum; (d) P. uleanum; (e) P. giganteum; (f) P. distantilobum; (g) P. krugii; (h) P. nadruzianum; (i) P. fragrantissimum. Bar in i represents 5 μm.
