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Cryptic species in the fern Ceratopteris thalictroides (L.) Brongn. (Parkeriaceae). II. Cytological characteristics of three cryptic species


, : Cryptic species in the fern Ceratopteris thalictroides (L.) Brongn. (Parkeriaceae). II. Cytological characteristics of three cryptic species. APG Acta Phytotaxonomica et Geobotanica 56(3): 231-240

Ceratopteris thalictroides has been reported to contain three cryptic species, called the south type, the north type and the third type. To obtain a clear understanding of these cryptic species, the somatic and meiotic chromosomes were examined in 18 sporophytes from different localities and three hybrids synthesized among the three types.

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