A Taxonomic Revision of the Lathberry Clade of Eugenia (Myrtaceae)

IF 0.9 3区生物学 Q4 EVOLUTIONARY BIOLOGY

Systematic Botany Pub Date : 2022-09-16 DOI:10.1600/036364422X16573019348319

Jonathan A. Flickinger, Eugenio Santiago‐Valentín, José Sustache‐Sustache, O. Monsegur-Rivera

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引用次数: 0

Abstract

Abstract The Lathberry Clade includes seven species of Eugenia sect. Umbellatae (Myrtaceae) distributed from Puerto Rico through the Lesser Antilles. Members of the Lathberry Clade are trees and shrubs distinguished from other Antillean species by a combination of dull twigs, glabrous leaves with a raised midvein, glomerate or fasciculate inflorescences predominantly borne below the leaves on old wood, closely spaced and ascending inflorescence bracts, spheroidal fruits turning red or purple at maturity with the calyx lobes erect or spreading and often torn away, and a unique, large deletion in the plastid psbA-trnH intergenic spacer region. We examined the morphology, leaf venation, and seed coat anatomy of the Lathberry Clade and constructed a phylogeny using non-coding nuclear genetic regions. The taxonomic treatment includes a key to the species, distribution maps, and extinction risk assessments. We recognize Eugenia sintenisii from Puerto Rico and E. cordata var. caribaea (nom. nov.) from the Lesser Antilles in place of E. cordata var. sintenisii and synonymize E. earhartii with E. stirpi-flora. Six lectotypes are designated.

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金缕梅科金缕梅枝的分类修正

摘要/ Abstract摘要:金蝇属伞形金蝇科(金蝇科)有7种，分布于波多黎各至小安的列斯群岛。树莓分支的成员是乔木和灌木，与其他安提列斯物种的区别在于:钝枝，无毛的叶，中脉凸起，球状或束状花序主要生在老木上的叶下，紧密间隔和上升的花序苞片，成熟时变成红色或紫色的球形果实，花萼裂片直立或展开，经常被撕下，在psbA-trnH基因间隔区有一个独特的大缺失。我们研究了蓝莓枝的形态、叶脉和种皮解剖，并利用非编码核遗传区构建了一个系统发育图。分类学处理包括物种的关键，分布图和灭绝风险评估。我们从波多黎各和小安的列斯群岛识别出e.c ordata var. caribaea(非11月)来代替e.c ordata var. sinintenisii，并将e.c earhartii与e.s terpi -flora同义。指定了六种类型。

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来源期刊

Systematic Botany 生物-进化生物学

CiteScore

1.80

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Systematic Botany Monographs is a series of peer-reviewed taxonomic monographs and revisions published the American Society of Plant Taxonomists. ISSN 0737-8211, ISBN prefix 978-0-912861. No; volumes of Systematic Botany Monographs must be ordered separately. ASPT membership inludes only a subscription to the quarterly journal Systematic Botany. SBM is supported by sales, author"s subsidies, and donations.