Nama aretinoides forma nevadensis Brand Isosyntype
Nama dichotomum var. chasmogamum Brand Isosyntype
Nama dichotomum var. pueblense (Robins. & Greenm.) J.F. Macbride Isotype
Nama hispidum var. spathulatum C. L. Hitchc. Unknown
Nama pringlei Robinson & Greenman Isotype
Nama pueblense Robinson & Greenman Isotype
Nania pumila Heller Isotype
Nania tremuloides Heller Isotype
Nasturtium sinuatum var. columbiae Suksdorf. ex Robinson Isotype
Nectandra colorata Lundell Isotype
Nectandra gentlei Lundell Isotype
Nectandra krugii Mez. Isosyntype
Nectandra krugii Mez. Isosyntype
Nectandra krugii Mez. Isosyntype
Nectandra magnifolia Lundell Isotype
Nectandra mopanensis Lundell Isotype
Nectandra nigrita Lundell Isotype
Nectandra petenensis Lundell Isotype
Nectandra sintenisii Mez. Isosyntype
Nectandra sintenisii Mez. Isosyntype
Nectandra venosissima Lundell Isotype
Neillia monogyna var. alternans M. E. Jones Unknown
Nemacaulis denudata var. gracilis Goodman & Benson in Munz Isotype
Nemacladus oppositifolius Robinson Isotype
Nemastylis caerulescens Greenman Isotype
Nemastylis flava Robinson Isotype
Nemastylis latifolia Weatherby Isotype
Nemastylis pringlei S. Watson Unknown
Neogoezia minor Hemsley Isotype
Neolitsea apoensis Elmer Unknown
Nephrolepis averyi Nauman Isotype
Neptunia microcarpa Rose Isotype
Nesaea pringlei Rose Isotype
Nissolia confertiflora var. laxior Robinson Isotype
Nissolia multiflora Rose Isotype
Nocca pringlei Robinson Isotype
Nolina brittoniana Nash Isotype
Notholaena bryopoda Maxon Unknown
Notholaena rigida