Taxon Search
Organism
  Plantae
    Viridiplantae
     Streptophyta
     Charophyta
            [Charophytina]
            [Conjugophytina]
            [Mesostigmatophytina]
            Conjugatophyceae
                   [Conjugophyceae]
                   [Zygnematophyceae]
                    Desmidiales
                            Peniaceae
                                    Penium
                                            Penium costatum
                                            Penium cylindrus
                                              Penium cylindrus var. cylindrus
                                              Penium cylindrus var. subtruncatum
                                            Penium didymocarpum
                                            Penium exiguum
                                            Penium libellula
                                            Penium margaritaceum
                                              Penium margaritaceum var. elongatum
                                              Penium margaritaceum var. margaritaceum
                                            Penium minutum
                                            Penium oblongum
                                            Penium phymatosporum
                                            Penium polymorphum
                                            Penium rupestre
                                            Penium silvaenigrae
                                              Penium silvaenigrae var. parallelum
                                              Penium silvaenigrae var. silvaenigrae
                                            Penium spinospermum
                                            Penium spinulosum
                                                   [Pleurotaenium spinulosum]
                                            Penium spirostriolatum