Three new species of Monstera (Araceae: Monsteroideae: Monstereae) from the Cordillera de Talamanca in Costa Rica, threatened by the expansion of coffee plantations

Marco Cedeno-Fonseca; Michael H. Grayum; Thomas B. Croat

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Three new species of Monstera (Araceae: Monsteroideae: Monstereae) from the Cordillera de Talamanca in Costa Rica, threatened by the expansion of coffee plantations

机译：三种新物种的蓬莱蕉(天南星科:从山脉Monsteroideae: Monstereae)Talamanca在哥斯达黎加的威胁咖啡种植园的扩张

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Monstera alfaroi Croat & M. Cedeno, M. tarrazuensis Croat & M. Cedeno and M. wilsoniensis M. Cedeno & Grayum, all apparently endemic to central and southern Costa Rica at middle elevations on the Pacific slope, are described as new species. Monstera alfaroi is characterized by having warty light brown petioles with undulate sheaths, very large adult leaves and inflorescences with warty peduncles, and externally light green spathes. Monstera tarrazuensis is characterized by its smooth, light green petioles with white dots and deciduous sheaths, coriaceous, entire leaf blades and inflorescences on hanging stems. Monstera wilsoniensis is characterized by its deciduous petiole sheaths, cordate or subcordate, weakly or not fenestrated leaf blades with entire margins and numerous primary lateral veins, and inflorescences in ascending or hanging stems. The three novelties are compared, respectively, with M. buseyi Croat & Grayum, M. luteynii Madison and M. adansonii Schott, and all are illustrated with color photos of living material.

机译：tarrazuensis克罗地亚& M . Cedeno和M。wilsoniensis m . Cedeno & Grayum显然哥斯达黎加特有的中部和南部中间海拔在太平洋斜坡,描述为新物种。特点是有疣的浅棕色叶柄与波形鞘,非常大的成年人叶和花序有疣的总花梗,和外部光绿苞。tarrazuensis特点是其光滑,亮绿色叶柄和白点落叶鞘,皮质,整个叶片茎和花序挂。wilsoniensis的特征是它的落叶叶柄鞘,心形的或subcordate,弱或不是有窗的叶片与整个利润率和许多主要的侧脉花序升序或茎。分别三个新奇事物比较m . buseyi克罗地亚& Grayum m . luteynii麦迪逊和m . adansonii Schott,所有的说明彩色照片的生活物质。

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《Nordic Journal of Botany》 |2020年第12期|Three new species of Monster-Three new species of Monstera/|共13页
作者
Marco Cedeno-Fonseca; Michael H. Grayum; Thomas B. Croat;
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作者单位

Programa de Posgrado en Biologia/Herbario Luis Fournier Origgi (USJ), Univ. de Costa Rica, San Jose, Costa Rica;

Missouri Botanical Garden, St. Louis, MO, USA. — M. A. Blanco;

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正文语种英语
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关键词
new species; Inflorescence; Central AmericaExpansionCosta RicaAraceaeMonsteraCordillera;

机译：新物种;花序;中央AmericaExpansionCosta;

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Three new species of Monstera (Araceae: Monsteroideae: Monstereae) from the Cordillera de Talamanca in Costa Rica, threatened by the expansion of coffee plantations

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