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Roemer, Johann Jakob View in Harvard University HerbariaView in Council of Heads of Australasian HerbariaView in Georg-August-Universität GöttingenView in the JSTOR Names of People databaseView in IPNI Decrease font Increase font Restore font
Family!Scientific Name AuthorReferenceDate
Amaranthaceae Achyranthes linkiana Roem. & Schult.Syst. Veg. (ed. 15 bis) 5: 5451819
Poaceae Actinochloa barbata (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4201817
Poaceae Actinochloa bromoides (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4201817
Poaceae Actinochloa hirsuta (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4191817
Poaceae Actinochloa juncifolia (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4201817
Poaceae Actinochloa ovata (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4201817
Poaceae Actinochloa procumbens (P. Durand) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4171817
Poaceae Actinochloa prostrata (hort. ex Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4191817
Poaceae Actinochloa scorpioides (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4201817
Poaceae Actinochloa simplex (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 4181817
Rutaceae Adenandra fragrans (Sims) Roem. & Schult.Syst. Veg. (ed. 15 bis) 5: 4511819
Rutaceae Adenandra glandulosa Roem. & Schult.  
Rutaceae Adenandra marginata (L. f.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 5: 4521819
Proteaceae Adenanthus Roem. & Schult.Syst. Veg. (ed. 15 bis) 3: 22, 3971818
Apocynaceae Adenium Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: xxxv, 4111819
Apocynaceae Adenium obesum (Forssk.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 4111819
Primulaceae Aegiceras floridum Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 5121819
Poaceae Aegopogon quinquesetus (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 1: 8051817
Poaceae Aegopogon trisetus (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 8051817
Poaceae Aegopogon unisetus (Lag.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 8051817
Poaceae Agropyron acutum (DC.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7511817
Poaceae Agropyron attenuatum (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7511817
Poaceae Agropyron bicorne (Forssk.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7601817
Poaceae Agropyron biflorum (Brign.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7601817
Poaceae Agropyron filiforme (Poir.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7601817
Poaceae Agropyron giganteum (Retz.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7531817
Poaceae ! Agropyron glaucum Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7521817
Poaceae Agropyron imbricatum Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7581817
Poaceae ** Agropyron junceum (L.) Roem. & Schult. ex OpizSeznam 111852
Poaceae Agropyron obtusiflorum (DC.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7531817
Poaceae Agropyron orientale (L.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7571817
Poaceae Agropyron pectiniforme Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7581817
Poaceae Agropyron peruvianum (Lam.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7611817
Poaceae * Agropyron prostratum (Pall.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7571817
Poaceae ! Agropyron pungens (Pers.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7531817
Poaceae Agropyron repens var. capillare (Pers. ex Peterm.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7551817
Poaceae Agropyron repens var. dumetorum (Schweigg.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7551817
Poaceae Agropyron repens var. imbricatum (Lam.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7551817
Poaceae Agropyron repens var. leersianum Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7551817
Poaceae ! Agropyron repens var. subulatum Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7541817
Poaceae Agropyron repens var. vaillantianum (Wulfen & Schreb.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7551817
Poaceae ! Agropyron subulatum (Banks & Sol.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7611817
Poaceae Agropyron variegatum (Fisch. ex Spreng.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7591817
Poaceae ** Agropyrum Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 7501817
Poaceae ! Agrostis sect. Vilfa (Adans.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2(2): 3431817
Poaceae Agrostis ambigua Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3521817
Poaceae Agrostis atrovirens (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3611817
Poaceae Agrostis carmichaelii Roem. & Schult.Mant. 3(Add.1): 5711827
Poaceae ! Agrostis conspicua (G. Forst.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3641817
Poaceae Agrostis distichophylla Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3541817
Poaceae * Agrostis elegans (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3621817
Poaceae Agrostis fasciculata (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3621817
Poaceae * Agrostis forsteri Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3591817
Poaceae Agrostis humifusa (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3611817
Poaceae Agrostis labillardieri Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3601817
Poaceae Agrostis lanceolata (Roth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3631817
Poaceae Agrostis monticola Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3591817
Poaceae Agrostis oligantha Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3721817
Poaceae Agrostis procumbens Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3711817
Poaceae Agrostis ramosa (Host) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3641817
Poaceae ! Agrostis ramulosa (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3611817
Poaceae Agrostis rudis Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3601817
Poaceae Agrostis spuria Roem. & Schult.Syst. Veg. (ed. 15 bis) 1: 3461817
Poaceae * Agrostis tenella (Schrad.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3461817
Poaceae Agrostis trichodes (Kunth) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3611817
Poaceae Agrostis valentina Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 3481817
Poaceae Aira versicolor Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 6791817
Poaceae Airopsis brevifolia (Pursh) Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 5781817
Apocynaceae Alafia thouarsii Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 4361819
Amaryllidaceae Allium fallax Roem. & Schult.Syst. Veg. (ed. 15 bis) 7(2): 10721830
Xanthorrhoeaceae Aloe bowiea Roem. & Schult.  
Zingiberaceae Alpinia antillarum Roem. & Schult.Syst. Veg. (ed. 15 bis) 1: 201817
Zingiberaceae Alpinia exaltata (L. f.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 1: 21, 5631817
Zingiberaceae Alpinia multicaulis Roem. & Schult.Syst. Veg. (ed. 15 bis) 1: 211817
Cyatheaceae Alsophila weigeltii Roem.Tent. Pterid. 611836
Amaranthaceae Alternanthera spinosa Roem. & Schult.Syst. Veg. (ed. 15 bis) 555 
Apocynaceae Alyxia gynopogon Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 4401819
Apocynaceae Alyxia scandens Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 4401819
Apocynaceae Alyxia stellata (J.R. Forst. & G. Forst.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 4391819
Rubiaceae Amajoua Roem. & Schult.Syst. Veg. (ed. 15 bis) 5: xx, 2671819
Zingiberaceae Amomum spurium Roem. & Schult.Syst. Veg. [Sprengel] 1: 301817
Vitaceae Ampelopsis heptaphylla (L.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 5: 3211819
Vitaceae Ampelopsis pinnata (Vahl) Roem. & Schult.Syst. Veg. (ed. 15 bis) 5: 3221819
Apocynaceae Amsonia elliptica (Thunb.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 4321819
Bromeliaceae Ananas muricatus (Arruda & CAMARA) Roem. & Schult. f.Syst. Veg. (ed. 15 bis) 7(2): 12871830
Poaceae Anatherum domingense Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 8091817
Boraginaceae Anchusa leptophylla Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 90–911819
Boraginaceae Anchusa micrantha Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 981819
Boraginaceae Anchusa villosa Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 7751819
Poaceae * Andropogon bergii Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 8131817
Poaceae Andropogon monticola Roem. & Schult.Mant. 2: 6651827
Poaceae Andropogon stenopyllus Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 8191817
Poaceae Andropogon zeae Roem. & Schult.Syst. Veg. (ed. 15 bis) 2: 8181817
Primulaceae Androsace gmelinii (L.) Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 1651819
Primulaceae Androsace ochotensis Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 7861819
Primulaceae Androsace orbicularis Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 8161819
Rutaceae Angostura Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 1881819
Rutaceae * Angostura cuspare Roem. & Schult.Syst. Veg. (ed. 15 bis) 4: 1881819
Asparagaceae Anthericum blepharophoron Roem. & Schult.  
Asparagaceae Anthericum jacquinianum Roem. & Schult.  
 
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