Covering 560.14 hectares in the south-east of Benin, the Ewe-Adakplame Relic Forest (EARF) is a micro-refugium that shows insular characteristics within the Dahomey Gap. It is probably one of the last remnants of tropical rain forest that would have survived the late Holocene dry period. Based on intensive field investigations through 25 plots (10 × 50 m size) and matching of herbarium specimens, a checklist of 185 species of vascular plant belonging to 54 families and 142 genera is presented for this forest. In addition to the name for each taxon, we described the life form following Raunkiaer’s definitions, chorology as well as threats to habitat. The Rubiaceae family was the richest (20 species) followed by the Fabaceae (15 species). Life forms showed the preponderance of phanerophytes (88%). The Chorological spectrum was dominated by Guineo-Congolean species (66%). Species richness estimated were 200.52 ± 9.2808 for Bootstrap; 217.62 ± 14.5972; 224.16 ± 15.3725 and 242.67 respectively for Chao, Jacknife1 and Jacknife2. Bootstrap appears to be the estimation closer to the field records. In Benin, EARF is home for Rinorea species described as West African forest bio-indicators and single location for Nesogordonia papaverifera, Mansonia altissima, Englerophytum oblanceolatum, Octolobus spectabilis, Vitex micrantha and most of Drypeteae tribe species (Drypetes aframensis, Drypetes afzelii, Drypetes gilgiana and Drypetes leonensis) recorded in Benin. Our results provides baseline information for further in-depth analysis of vegetation history in Benin by raising the question on the past floristic connection of the Dahomey gap and community engagement in conservation.

中文翻译：

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西非贝宁的母羊-Adakplame遗迹森林维管束植物清单

Ewe-Adakplame遗迹森林（EARF）覆盖贝宁东南部560.14公顷，是一个微型避难所，在达荷美峡内部显示出与世隔绝的特征。它可能是在全新世干旱后期幸存下来的热带雨林的最后残余之一。基于对25个样地（10×50 m大小）的密集野外调查和植物标本室标本的匹配，针对该森林提出了一份清单，列出了属于54个科和142属的185种维管植物。除了每个分类单元的名称之外，我们还按照Raunkiaer的定义，编排学以及对栖息地的威胁来描述生命形式。茜草科是最丰富的（20种），其次是豆科（15种）。生活型态表现出以旱生植物为主（88％）。几内亚-刚果品种占总谱系的66％。Bootstrap的物种丰富度估计为200.52±9.2808；217.62±14.5972；Chao，Jacknife1和Jacknife2分别为224.16±15.3725和242.67。Bootstrap似乎是更接近现场记录的估计。在贝宁，EARF是被描述为西非森林生物指标的里诺雷亚物种的栖息地，并且是雀巢Nesogordonia papaverifera，Mansonia altissima，Englerophytum oblanceolatum，Octolobus spectabilis，Vitex micrantha和大多数Drypeteae部落物种（Drypetes aframensis，Drypetes afzel）的唯一栖息地。和Drypetes leonensis）记录在贝宁。