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Nairobi, Kenya

Ren H.,CAS South China Botanical Garden | Ren H.,University of Chinese Academy of Sciences | Lu L.-M.,CAS Institute of Botany | Lu L.-M.,University of Chinese Academy of Sciences | And 6 more authors.
Taxon | Year: 2011

The phylogeny of Vitaceae was reconstructed sampling 114 accessions of Vitaceae and the outgroup Leea of Leeaceae, using three noncoding plastid markers: trnC-petN, trnH-psbA, and trnL-F. Six 5-merous genera including Parthenocissus, Yua, Ampelocissus, Vitis, Nothocissus, and Pterisanthes form a well-supported clade. Ampelopsis, Rhoicissus, and the Cissus striata complex form a clade sister to the clade containing all the other taxa of Vitaceae. The core Cissus clade is resolved to be sister to the Cayratia-Tetrastigma-Cyphostemma clade, forming a clade of taxa with 4-merous flowers. The Parthenocissus- Yua clade is sister to the Ampelocissus-Vitis-Nothocissus-Pterisanthes clade. The Old World Cissus is paraphyletic, with the New World core Cissus nested within it. The intercontinental disjunction between Africa and Asia may have evolved at least twice in Cissus. Cayratia is paraphyletic with four Asian species sampled grouping with Tetrastigma and the African species forming another clade.

Brown J.W.,U.S. Department of Agriculture | Copeland R.S.,Texas A&M University | Aarvik L.,University of Oslo | Miller S.E.,Smithsonian Institution | And 2 more authors.
African Entomology | Year: 2014

We present host records for the following Afrotropical Tortricidae reared from fruit in Kenya : Idiothauma nr africanum Walsingham, Paraccra mimesa Razowski, Apotoforma nr uncifera Razowski, Eugnosta percnoptila (Meyrick), Phtheochroa aarviki Razowski & Brown, Actihema hemiacta (Meyrick), Choristoneura dinota (Meyrick), Choristoneura occidentalis (Walsingham), Procrica nr ophiograpta (Meyrick), Metamesia nr episema (Diakonoff), Epichoristodes acerbella (Walker), Cryptaspasma phycitinana Aarvik, Cryptaspasma subtilis Diakonoff complex, Cryptaspasma caryothia (Meyrick) complex, Cryptaspasma n. sp., Lobesia vanillana (Joannis), Lobesia semosa Diakonoff, Eccopsis nebulana Walsingham, Eccopsis praecedens Walsingham, Afrothreutes madoffei Aarvik, Afroploce nr karsholti Aarvik, Metendothenia balanacma (Meyrick), Endothenia ator Razowski & Brown, Anthozela chrysoxantha Meyrick, Anthozela psychotriae Razowski & Brown, Concinocordis wilsonarum Razowski & Brown, Crocidosema plebejana Zeller, Crocidosema lantana (Busck), Gypsonoma scolopiae Razowski & Brown, Cosmetra nereidopa (Meyrick), Cosmetra sp. 1, Cosmetra sp. 2, Cosmetra sp. 3, Cosmetra podocarpivora Razowski & Brown, Cosmetra taitana Razowski & Brown, Thaumatotibia leucotreta (Meyrick), Thaumatotibia batrachopa (Meyrick), Thaumatotibia salaciae Razowski & Brown, Cryptophlebia semilunana (Saalmüller), Cryptophlebia sp. 1, Cryptophlebia peltastica (Meyrick), Cydia connara Razowski & Brown, Cydia sennae Razowski & Brown, Cydia nr choleropa (Meyrick), Fulcrifera crotalariae Razowski & Brown, Fulcrifera nr periculosa (Meyrick), Fulcrifera sp. 1, Fulcrifera sp. 2, Dracontogena continentalis Karisch, Dracontogena solii Aarvik & Karisch, Grapholita limbata Diakonoff, Grapholita mesosocia (Meyrick), Grapholita nr mesosocia (Meyrick), Selania exornata (Diakonoff), Eucosmocydia monitrix (Meyrick), Stenentoma sorindeiae Razowski & Brown, and Thylacogaster garcinivora Razowski & Brown. Nearly 75 % of all our reared tortricids are members of Grapholitini, a tribe that includes numerous pests of fruit worldwide. Approximately 77 % of the reared species are recorded from only one or two different plants species (frequently in the same plant genus). Plant families that support the greatest numbers of tortricid fruit-feeders are Rubiaceae (13 tortricid species), Ochnaceae (11 tortricid species), Sapindaceae (10 tortricid species), Rosaceae (8 tortricid species), Connaraceae (7 tortricid species) and Fabaceae (7 tortricid species). We also review previously reported food plants and provide a few new records for four foliage- and/or fruit-feeding tortricids from the Afrotopical Region, e.g. Goniotorna erratica (Diakonoff), Taiteccopsis taitana Razowski, Cydia choleropa (Meyrick) and Leguminivora ptychora (Meyrick). Identifications are based on morphology and DNA barcodes (COI).

Darbyshire I.,Herbarium | Luke Q.,East African Herbarium
Kew Bulletin | Year: 2016

A new species of Barleria (Acanthaceae), discovered in 2014 on the Uzondo Plateau of West Tanzania, is described and illustrated and its affinities are discussed. This is the first documented tree species in the genus Barleria. Its conservation status is assessed using the categories and criteria of IUCN; it is considered to be globally Vulnerable. © 2016, The Board of Trustees of the Royal Botanic Gardens, Kew.

Couvreur T.L.P.,Wageningen University | Luke W.R.Q.,East African Herbarium | Luke W.R.Q.,Fairchild Tropical Botanic Garden
Blumea: Journal of Plant Taxonomy and Plant Geography | Year: 2010

The Eastern Arc Mountains of Tanzania enclose high levels of plant and animal diversity with many yet to be described species. Here we describe a new species of the pan-tropical plant family Annonaceae named Uvariopsis lovettiana. It closely resembles another Eastern Arc endemic species, U. bisexualis, and its possible relationships with this species are discussed. A description with illustrations is presented as well as a suggestion for the IUCN conservation status of this new taxon. © 2010 Nationaal Herbarium Nederland.

Mwachala G.,East African Herbarium | Fischer E.,University of Koblenz-Landau
Novon | Year: 2013

Abstract. Two new species of Dracaena Vand. ex L. (Asparagaceae, Nolinoideae) from Central Africa are here described and illustrated. Dracaena longipetiolata Mwachala & Eb. Fisch. from Gabon is distinguished from D. phrynioides Hook. by its long petioles and elliptic leaves. Dracaena litoralis Mwachala & Eb. Fisch. is described from Cameroon and also occurs in Equatorial Guinea, Gabon, and Congo-Brazzaville. This new taxon differs from D. braunii Engl. by its smaller flowers whose perianth lobes are shorter than the tube. The identity of D. braunii is discussed and its affinity with D. litoralis analyzed.

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