Jasminum cuneatum Jongkind (Oleaceae), a new species from Guinee, Liberia and Cote d'Ivoire

The new species Jasminum cuneatum Jongkind (Oleaceae) from western Africa is described here. It differs from]. paucinervium Benth., a species that occurs in the same area and that is the most easily confused, by its cuneate and not rounded or cordate leaf base and the absence of pit domatia. It differs from J. kwangense Liben from Central Africa by the more papery leaves without abundant glandular dots and pit domatia on their lower surface

Justicia jamisonii Jongkind & Vollesen (Acanthaceae), a new species from Guinée, Côte d'Ivoire and Kenya

A new species, Justicia jamisonii is described and illustrated. It resembles Rungia paxiana but has a much narrower membranous margin on the inflorescence bracts and the corolla is hairy on the outside. The species has an extraordinary geographical distribution, it is only known from Guinée and Côte d’Ivoire in the west and Kenya in the east, two areas separated by a c. 4,700 km gap. It is described here in Justicia because the genus Rungia will soon be united with the older genus Justicia by the second author

Combretum nusbaumeri Jongkind & L. Gaut. (Combretaceae), a new species from Madagascar

JONGKIND, C. C. H. & L. GAUTIER (2011). Combretum nusbaumeri Jongkind & L. Gaut. (Combretaecae), a new species from Madagascar. Condollea 66: 311-315. In English, English and French abstracts. The new species Combretum nusbaumeri Jongkind & L. Gaut. (Combretaceae) that is endemic to north-eastern Madagascar is described and illustrated. It belongs in subgen. Cacoucia (Aubl.) Exell & Stace sect. Calopyxis (Tul.) Jongkind and is related to Combretum evisceratum (H. Perrier) Jongkind and Combretum macrocalyx (Tul.) Jongkind, two forest climbers that are also found in the same region. It differs quite markedly from them by the densely hairy receptacle and the style which is barely exserted

The Connaraceae : a taxonomic study with special emphasis on Africa

C. C. H. JongkindIn the general part of this work the author of this thesis treats the leaves, flowers and fruits of Connaraceae. Additional chapters reflect upon the phylogeny of the genus Rourea , the phytochemistry of the family, and the relationship of Connaraceae with other families.In the taxonomic part a description of the family is presented together with keys to the genera. A revision of the genera Agelaea , Manotes , and Rourea is presented with special emphasis on Africa, including descriptions of the genera and differential keys to the species.In the revision of the genus Agelaea six species are recognized including the Asiatic species.Manotes is only found in Africa and comprises five species.The genus Rourea is revised for Africa only, twelve species are recognized for this area. The American and Asiatic species are studied but not revised. New combinations are made for American and Asiatic species that are transferred to this genus. The American species are classified into clusters. In this work Rourea also includes Bernardinia , Byrsocarpus , Jaundea , Roureopsis , Santaloidella , Santaloides , Spiropetalum , and Paxia , formely recognized as separate genera.The treatment of the African species comprises full synonymy, literature, diagnosis, a distribution map, and ecological notes. In most cases an illustration is presented as well.The author studied and collected most species of Agelaea , Manotes , and Rourea on location in the rain forest in Gabon.R. H. M. J. LemmensIn the general part of this work the author of this thesis treats the geography, habit, morphology of stems and branches, and inflorescences of Connaraceae. The phenomenon of heterostyly, its expression and evolutionary developments are dealt with in a separate chapter. Additional chapters reflect upon the phylogeny of the genera within the family and on mutual relations of the species in the genus Cnestis. The, author has assembled what is known about the pollen morphology, and provides supplementary original information.In the taxonomic part a revision of the genera Cnestis , Connarus , and Ellipanthus is presented, with special emphasis on Africa, including descriptions of the genera and differential keys to the species. Additional keys are presented for plants that are either exclusively flowering or fruiting.In the genus Cnestis 13 species are recognized, including the Asiatic C.palala and two new species, C.bomiensis and C. uncata. Compared to Schellenberg's monograph on Connaraceae (1938) the number of species is extensively reduced.Connarus comprises seven species in Africa, including the new species C.gabonensis , while Ellipanthus has two African species, of which one was collected only once on Madagascar.The treatment of each species comprises its full synonymy, literature, diagnosis, an illustration, a distribution map, and ecological and botanical notes.The author studied and collected five species of Cnestis, and two species of Connarus on location in the rain forest in Gabon

A new species of Millettia (Leguminosae-Papilionoideae) from West Africa

Millettia liberica Jongkind (Leguminosae–Papilionoideae) from the forests of western Africa is described and illustrated