Three new species of Uvariodendron (Annonaceae) from coastal East Africa in Kenya and Tanzania

被引：6

作者：

Dagallier, Leo-Paul M. J. ^{[1
]}

Mbago, Frank M. ^{[2
]}

Luke, W. R. Quentin ^{[3
]}

Couvreur, Thomas L. P. ^{[1
,4
]}

机构：

[1] Univ Montpellier, CIRAD, DIADE, IRD, Montpellier, France

[2] Univ Dar Es Salaam, Bot Dept, Box 35060, Dar Es Salaam, Tanzania

[3] Natl Museums Kenya, East African Herbarium, POB 45166, Nairobi 00100, Kenya

[4] Pontificia Univ Catolica Ecuador, Fac Ciencias Exactas & Nat, Av 12 Octubre 1076 & Roca, Quito, Ecuador

来源：

PHYTOKEYS | 2021年 / 174期

关键词：

Annonaceae; bergamot; Dzombo Hill; endemic; IUCN conservation status; Shimba Hills; UVARIOPSIS ANNONACEAE; ARC MOUNTAINS; DIVERSITY; PATTERNS; ENDEMISM; FORESTS; GENUS;

D O I：

10.3897/phytokeys.174.61630

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

East Africa is a hotspot of biodiversity with many endemic plant species. We describe three new species of the genus Uvariodendron (Annonaceae) from the coastal forests of Kenya and Tanzania. Uvariodendron mbagoi Dagallier & Couvreur, sp. nov. is endemic to Tanzania and unique within the genus by its strong bergamot scent and its tomentose fruits having regular tufts of higher hair density. Uvariodendron dzomboense Dagallier, W.R.Q. Luke & Couvreur, sp. nov. is endemic to Dzombo Hill in Kenya and is rendered distinct by its small leaves and very densely pubescent carpels. Uvariodendron schmidtii W.R.Q. Luke, Dagallier & Couvreur, sp. nov. is endemic to Shimba Hills in Kenya and differs by its small flowers and fused sepals forming a ring. Following IUCN criteria we assessed U. mbagoi and U. dzomboense as endangered (EN) while U. schmidtii is assessed as Vulnerable (VU). We also propose a new combination: Polyceratocarpus oligocarpus (Verdc.) Dagallier, comb. nov. The description of these three new species underlines the richness in endemics in East Africa and that new discoveries might arise from further botanical exploration of this region.

引用

页码：107 / 126

页数：20

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