The Cercidoideae subfamily has a wide geographic distribution in Brazil, with its most representative genera, L. and Raddi. This study aims to describe the pollen morphology of native species of and that occur in forest fragments in southeastern Brazil, expanding the morphological knowledge of Cercidoideae species. The pollen morphology of 21 species of the subfamily Cercidoideae were analyzed, including 13 species of and eight species of Pollen grains were acetolyzed, measured, and photographed in light microscopy, while pollen grains non-acetolyzed were used for analysis in scanning electron microscopy. Quantitative pollen grain data were examined by descriptive and multivariate analysis; qualitative data were described and used to define pollen types. The studied species showed pollen with variation in size, amb, polar area, shape, type, and detail of ectoaperture and endoaperture, exine ornamentation, and supratectal elements. Qualitative data allowed separating the and species into five pollen types according to the type of aperture and the exine ornamentation. The quantitative data of diameter, however, allowed the separation of genera and confirmed the pollen types in and . From the data obtained and the pollen variations observed in the species analyzed, we can describe the genera and as eurypalynous.

中文翻译：

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巴西塞拉多森林碎片中的 Cercidoideae (Fabaceae) 物种花粉形态的多样性：Bauhinia L. 和 Schnella Raddi

Cercidoideae亚科在巴西地理分布广泛，其中最具代表性的是L.属和Raddi属。本研究旨在描述巴西东南部森林碎片中本地物种的花粉形态，扩大连香科物种的形态知识。对瑟西杜亚科 21 种植物的花粉形态进行了分析，其中 13 种和 8 种花粉粒进行了乙酰解，并在光学显微镜下进行了测量和拍照，而未乙酰解的花粉粒则进行了扫描电镜分析。通过描述性和多变量分析检查定量花粉粒数据；描述了定性数据并用于定义花粉类型。研究的物种显示花粉在大小、直径、极面积、形状、类型以及外孔和内孔的细节、外壁装饰和上顶盖元素方面存在差异。定性数据允许根据孔径类型和外壁装饰将物种分为五种花粉类型。然而，直径的定量数据允许分离属并确认 和 中的花粉类型。根据所获得的数据和在所分析的物种中观察到的花粉变异，我们可以将属和属描述为广孢粉属。