Abstract Palynological characters of 18 species belonging to seven genera of the traditional subfamily Alsinoideae including Arenaria, Cerastium, Eremogone, Lepyrodiclis, Minuartia, Sabulina and Stellaria were studied in detail using light and scanning electron microscopy. Pollen grains of subfamily Alsinoideae are subspheroidal or prolate, pantoporate and 20.04 to 51.4 µm in size, prominent and sunken apertures uniformly distributed on the pollen surface. Two types of pollen grain ornamentation were observed, i.e. microechinate-punctate or microechinate-perforate. Echini are present on the surface of the pollen of all investigated species with medium, dense, or sparse echinodensity. These species exhibit variation in polar view, equatorial diameter, number of apertures, exine thickness, diameter of pore, appendages per pore, pore ornamentation, echini arrangement, echinidensity and shape of pollen. Based on qualitative characters, a dichotomous key has been developed for quick and easy identification. The present investigation contributes to the systematic approach using palynological characteristics and correct identification of species for members of subfamily Alsinoideae (Caryophyllaceae).

中文翻译：

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使用孢粉形态特征鉴定石楠科（石竹科）：一种系统方法

摘要 利用光学显微镜和扫描电镜对传统亚科白花螟亚科7属18种植物的孢粉学特征进行了详细的研究，其中包括Arenaria、Cerastium、Eremogone、Lepyrodiclis、Minuartia、Sabulina和Stellaria。Alsinoideae 亚科的花粉粒呈近球形或扁长形、泛孔状，大小为 20.04 至 51.4 µm，花粉表面均匀分布的突出和凹陷的孔。观察到两种类型的花粉粒纹饰，即微棘刺-点状或微棘刺-穿孔。Echini 存在于所有研究物种的花粉表面，具有中等、密集或稀疏的棘突密度。这些物种在极视图、赤道直径、孔数、外壁厚度、孔直径、每个孔的附属物、孔纹、棘突排列、棘突密度和花粉形状。基于定性特征，开发了一种二分键，以便快速轻松地进行识别。本调查有助于使用孢粉学特征的系统方法和正确识别 Alsinoideae 亚科（石竹科）成员的物种。