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Garwood, Nancy C.; Jordan, Kristina; Flowers, Nicholas D.; Humphreys, Aelys M.; Russell, Stephen J.; Neubig, Kurt M.
Journal of the Botanical Research Institute of Texas, 11/2018, Volume: 12, Issue: 2Journal Article
We resolve three problems concerning the three entire-leaved species of Neotropical Trema. 1) Phylogenetic and morphological results showed that T. integerrima (Beurl.) Standl., T. domingensis Urb., and T. laxiflora Lundell are a single species; therefore, we combine them under a single name. 2) The date of publication gives priority to T. integerrima, as the basionym Sponia integerrima Beurl. was published in 1856. However, the type specimen, Billberg 308 (S), is not a species of Trema but Pouzolzia obliqua (Wedd.) Wedd. (Urticaceae); therefore, Sponia integerrima Beurl. is a new synonym of P. obliqua. The next available name for the entire-leaved species is T. domingensis, published in 1912. 3) The type of T. domingensis, Fuertes 312, is a mixed collection. Specimens of Fuertes 312 held at B, NY, U, and USD are T. domingensis, while those at P, G, US, and Z are Celtis trinervia Lam. We provide a historical review to understand how these problems arose and persisted unnoticed for decades. Resolvimos tres problemas concernientes a las tres especies neotropicales de hojas enteras de Trema. 1) Los resultados filogenéticos y morfológicos mostraron que T. integerrima (Beurl.) Standl., T. domingensis Urb. y T. laxiflora Lundell son una sola especie; así que las combinamos a un solo nombre. 2) La fecha de publicación da prioridad a T. integerrima, ya que el basiónimo Sponia integerrima Beurl se publicó en 1856. Sin embargo, el espécimen tipo Billberg 308 (S) no es una especie de Trema sino Pouzolzia obliqua (Wedd.) Wedd. (Urticaceae); por lo tanto, Sponia integerrima Beurl. es un nuevo sinónimo de P. obliqua. El siguiente nombre disponible para esta especie era T. domingensis, publicado en 1912. 3) El tipo de T. domingensis era una colección mixta. Los especímenes de Fuertes 312 almacenados en B, NY, Y y USD son T. domingensis, mientras que los de P, G, US y Z son Celtis trinervia Lam. Proporcionamos una reseña histórica para comprender cómo surgieron estos problemas y persistieron desapercibidos durante décadas.
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