Biography
Johan Albert Constantin Loefgren, Swedish-born Brazilian naturalist (Stockholm 11 September 1854 – Rio de Janeiro 30 August 1918)
DESCRIBED VALID SPECIES
Plantae
Acianthera cryptophoranthoides 1918
Anathallis adenochila 1918
Anathallis simpliciglossa 1918
Anathallis tigridens 1918
Begonia juliana
Brasiliorchis barbosae 1918
Pleurothallis atroglossa 1918
Pleurothallis glandulifera 1915
Pleurothallis leucosepala 1918
Pleurothallis magnicalcarata 1918
Rhipsalis campos-portoana 1918
Rhipsalis chrysantha 1915
Rhipsalis chrysocarpa 1915
Rhipsalis crispimarginata 1918
Rhipsalis densiareolata 1918
Rhipsalis oblonga 1918
Rhipsalis pacheco-leonis 1918
Rhipsalis pilocarpa 1903
Rhipsalis pulchra 1915
Rhipsalis rigida 1915
Schlumbergera candida 1918
Schlumbergera opuntioides 1903 with Dusén
Zygocactus obtusangulus 1918
Algae
Staurastrum psilosporum 1883 with Nordstedt (Charophyta)
HONORS
Loefgrenia Gomont 1896 (Cyanophyceae)
Loefgrenianthus Hoehne 1927 (Orchidaceae)
Loefgrenia Travassos 1920 (Nematoda)