taxonID	type	description	language	source
D7919D16AC155D8287CBBC4DCEB384CA.taxon	description	Fig. 1, Table 1	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
D7919D16AC155D8287CBBC4DCEB384CA.taxon	distribution	Distribution Ethiopia, Kenya, and South Sudan (Fig. 1).	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
E9D7680D317D574EA31375D4D7CCCEEA.taxon	description	Figs 3, 4, 5, Table 1	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
E9D7680D317D574EA31375D4D7CCCEEA.taxon	diagnosis	Diagnosis Rhipidoglossum fischerianum is most similar to R. globulosocalcaratum and R. adoxum, but can be distinguished by the following characteristics: leaves dark green, linear-falcate with acute apex (vs light green, narrowly oblong with unequally bilobed apex in R. globulosocalcaratum; vs dark green, linear-falcate with unequally bilobed apex in R. adoxum); inflorescences with fewer flowers, 3 – 5 (vs 4 – 9 in R. globulosocalcaratum; vs 8 – 11 in R. adoxum); larger lateral sepals, widely ovate, 3 – 3.3 × 1.5 – 1.7 mm (vs widely elliptic to subcircular, 2.1 – 2.2 × 1.7 – 1.8 mm in R. globulosocalcaratum; vs triangular to widely deltate, 2.3 – 2.5 × 0.8 – 0.9 mm in R. adoxum); lip subcircular, markedly concave and bowl-shaped, spreading (vs transversally elliptic, convex, decurved in R. globulosocalcaratum; vs ovate, concave, decurved in R. adoxum); a lemon anther cap with a small pointed zenithal projection (vs pale yellow anther cap rounded at the zenith in both species); oblong viscidia with acute extremities, enclosed onto the sides of the rostellum (vs ellipsoid viscidia and rounded extremities, enclosed onto the sides of the rostellum in R. globulosocalcaratum; vs subcircular, exposed laterally to the rostellum midlobe in R. adoxum).	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
E9D7680D317D574EA31375D4D7CCCEEA.taxon	description	Description Epiphytic, pendent herb, up to 300 mm tall. Roots slender, basal and axillary, usually 2 (– 4) per node, distributed all along the stem, greenish – whitish, 15 – 90 × 7 – 15 mm. Stem spreading to pendent, elongate, rarely branched, up to 300 × 1.5 – 2 mm, internodes 2 – 6.5 mm long. Leaves usually 20 – 30 (46), distichous, dark green, concolourous, linear-falcate, entire, apex acute, base attenuate, 13 – 82 × 1 – 4.5 mm. Inflorescences up to 2 per node, axillary, much shorter than the leaves, 3 – 5 - flowered, 9 – 12 mm long; peduncle glabrous, 4.5 – 6.5 mm long; rachis glabrous, 4.5 – 5.5 mm long; bracts deltate, 1 × 0.7 – 1.3 mm. Pedicel and ovary cylindrical, glabrous, 3.5 – 5.3 × 0.7 mm; dorsal sepal widely elliptic to widely ovate, apex obtuse, white to ivory, margin entire, 3 × 2 – 2.2 mm, lateral sepals widely ovate, apex acute, white to ivory, margin entire, 3 – 3.3 × 1.5 – 1.7 mm; petals widely elliptic, apex acute, slightly concave, white to ivory, margin entire, 2.3 – 2.5 × 1.7 – 1.8 mm, lip subcircular, markedly concave, bowl-shaped, spreading, white to ivory, margin slightly involute, lacking a callus, 2.1 × 2.4 – 2.5 mm; spur cupuliform, straight, greenish – whitish, 1.4 – 2 × 1 mm; column bright green, decurved, ca 1.5 mm long; anther cap with a small pointed zenithal projection, frontal margin rounded, lemon-coloured, 0.8 × 0.8 mm; stipes two, obclavate, viscidia two, oblong, acute extremities, translucid, enclosed in the viscidium; pollinia two, globose, 0.5 × 0.5 mm; rostellum trilobate, lateral lobes reduced, triangular, midlobe nose-shaped, with prominent lateral viscidial cavities, slightly recurved, ca 0.7 × 0.7 mm. Fruit, a capsule, globose, ribbed, 6 × 3.8 – 4 mm.	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
E9D7680D317D574EA31375D4D7CCCEEA.taxon	distribution	Distribution Rhipidoglossum fischerianum is endemic to the Western Rift Valley in Central and Eastern Africa, occurring in the Democratic Republic of the Congo, Uganda, and Rwanda, between 1900 and 2605 m a. s. l. (Fig. 1).	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
E9D7680D317D574EA31375D4D7CCCEEA.taxon	etymology	Etymology The epithet celebrates Eberhard Fischer, PhD, Professor at the University of Kaiserslautern-Landau (formerly University of Koblenz-Landau) for his outstanding contributions to the floristics and taxonomy of the orchids of the Western Rift region.	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
F24AA6ACE8DE52FF913A49E5B9D7EEE4.taxon	description	Figs 1, 2, Table 1	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
F24AA6ACE8DE52FF913A49E5B9D7EEE4.taxon	distribution	Distribution Cameroon, Equatorial Guinea (Rio Muni), Democratic Republic of the Congo, and Uganda. Cameroon and Uganda represent new country records. All known occurrences from Rwanda correspond to R. fischerianum. The occurrence of R. globulosocalcaratum at Irangi, DRC (Biedinger and Fischer 1996) must be confirmed (Fig. 1).	en	Macedo, Arthur, Trovó, Marcelo, Stévart, Tariq, Farminhão, João (2025): A new species of Rhipidoglossum (Orchidaceae, Angraecinae) from the Western Rift Valley (Africa). Plant Ecology and Evolution 158 (2): 248-259, DOI: 10.5091/plecevo.155517
