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1 June 2017 Ramet-Based Expressed Sex Ratio in Polish Populations of Nyholmiella obtusifolia (Orthotrichaceae)
Abstract

Ślipiko, M., Sawicki, J. & Chmielewski, J. 2017. Ramet-based expressed sex ratio in Polish populations of Nyholmiella obtusifolia (Orthotrichaceae). — Herzogia 30: 51–57.

We assessed ramet-based expressed sex ratio in eight Polish populations of Nyholmiella obtusifolia based on our own sampling (n = 4) and herbarium collections (n = 4). In each specimen of ca. 5 cm2 in size, we visually scored all individual ramets for the presence of sexual organs, i.e. antheridia and archegonia. We also counted gametophytes with sporophytes. Generally, most bisexual specimens (n = 5) were female-skewed with female ramets outnumbering males 7–10 fold. Only one population was almost balanced. Unisexual specimens (n = 3) were always female. Thirtyfive to 91 % of the ramets per specimen were non-expressing.

"Ramet-Based Expressed Sex Ratio in Polish Populations of Nyholmiella obtusifolia (Orthotrichaceae)," Herzogia 30(1), 51-57, (1 June 2017). https://doi.org/10.13158/heia.30.1.2017.51
Accepted: 10 April 2017; Published: 1 June 2017
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