Lower leaflet surfaces of Polylepis species with different types of hairs. Lanate: A P. lanata B P. serrata. Pannose: C P. besseri D P. rugulosa. Sericeous: E P. rodolfo-vasquezii F P. sericea. Tomentose: G P. microphylla H P. reticulata. Pilose: I P. flavipila J P. pilosissima. Villous: K P. acomayensis. Puberulous: L P. neglecta. Strigose: M P. subericans. Photographs by T. E. Boza E.