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Vol. 54 No. 2, 1999: Contents
Original papers
Arbo, Maria Mercedes. Two new species of Piriqueta (Turneraceae) from Bahia, Brazil
Bidgood, Sally & Cribb, Phillip. Vanilla (Orchidaceae) newly reported from Ethiopia
Bruyns, P. V. A systematic analysis with notes on the taxonomy of Notechidnopsis (Apocynaceae: Asclepiadaceae)
Byalt, V. V. A new name for Sedum decumbens R. T. Clausen (Crassulaceae)
—— & Sokolova, I. V. Ohbaea Byalt & I. V. Sokolova, a replacement name for Balfouria (H. Ohba) H. Ohba (Crassulaceae)
Cheek, Martin & Fischer, Eberhard. A tuberous and epiphytic new species of Impatiens (Balsaminaceae) from southwest Cameroon
de Kok, R. P. J. & Mabberley, D. J. Generic and intra-generic delimitation of Oxera Labill. (Labiatae)
—— & —— A synopsis of Oxera Labill. (Labiatae)
Ensermu Kelbessa. A new species of Justicia (Acanthaceae) from Ethiopia
—— Ruellia boranica (Acanthaceae), a new species from Ethiopia
Goldenberg, Renato & Martins, Angela Borges. Two new Melastomataceae from São Paulo, Brazil
Green, P. S. A new species of Jasminum from Laos. Studies in the genus Jasminum (Oleaceae) XVI
Harley, R. M. A revison of Hyptis sect. Polydesmia subsect. Malvastra (Labiatae) in the Neotropics
Hind, D. J. N. A new genus, Semiria (Compositae: Eupatorieae), and a discussion of its affinities within the subtribe Gyptidinae of Bahia, Brazil
Hoffmann, Petra. New taxa and new combinations in Asian Antidesma (Euphorbiaceae)
Ing, Bruce, Spooner, B. M. & Butterfill, G. B. Myxomycetes from the Azores
Johnson, Margaret A. T. Two new chromosome numbers in an unusual Albuca (Hyacinthaceae) from Saudi Arabia
Lindqvist, Charlotte & Albert, Victor A . Phylogeny and conservation of African violets(Saintpaulia: Gesneriaceae): new findings based on nuclear ribosomal 5S non-transcribed spacer sequences
Lock, J. M. A synopsis of Xyris (Xyridaceae) in south-central Africa
—— A new combination in Siphonochilus (Zingiberaceae)
Mackinder, Barbara. Three new taxa and a new name in Dolichos L. (Leguminosae: Papilionoideae: Phaseolus)
Masinde, Patrick Siro. A new Kenyan species of Ceropegia (Asclepiadaceae-Stapelieae) with notes on allied taxa
Méndez Santos, Isidro E. A new species of Lantana (Verbenaceae) from Cuba
Nguyen Van Dzu & Boyce, Peter C. The genus Amydrium (Araceae: Monsteroideae: Monstereae) with particular reference to Thailand and Indonesia
Sebsebe Demissew. The type of Ipomoea sofomarensis Sebsebe (Convolvulaceae)
Thiyagaraj, J. G. & Daniel, P. Arisaema jethompsonii (Araceae) — a new species from the Western Ghats
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