Abstract
Blotiella currorii (Hook.) R.M.Tryon. (Dennstaedtiaceae), Dicranopteris linearis (Burm.F.) Underw. (Gleicheniaceae), and Aleuritopteris farinosa (Forssk.) Fée (Pteridaceae) are reported for the first time in the flora of Senegal. They represent not only three more species but also two new families, Dennstaedtiaceae and Gleicheniaceae, for Senegal. Data on species, morphology, taxonomy, ecology, and geographic distribution are included. These three species were found in the interstices of the cliff of the 100-m Dindefelo Falls, which is in Kedougou region.
Highlights
Pteridophytes, grouping the two distinct evolutionary lineages Polypodiopsida and Lycopodiopsida (Pryer et al 2001; Smith et al 2006; Christenhusz 2011; PPG I 2016), are free-sporing vascular plants that are widespread around the world but in tropical countries
Morphology, taxonomy, ecology, and geographic distribution are included. These three species were found in the interstices of the cliff of the 100-m Dindefelo Falls, which is in Kedougou region
The pteridoflora of Senegal is enriched with three new species of ferns collected during our inventories: Dicranopteris linearis (Burm.F.) Underw. (Gleicheniaceae, Fig. 2A), Aleuritopteris farinosa (Forssk.) Fée (Pteridaceae, Fig. 2B), and Blotiella currorii (Hook.) R.M.Tryon. (Dennstaedtiaceae, Fig. 2C)
Summary
Pteridophytes, grouping the two distinct evolutionary lineages Polypodiopsida (ferns, referred to as “monilophytes”) and Lycopodiopsida (Pryer et al 2001; Smith et al 2006; Christenhusz 2011; PPG I 2016), are free-sporing vascular plants that are widespread around the world but in tropical countries. The species diversity of pteridophytes is estimated at 11,916 species distributed in 337 genera, 51 families, 14 orders, and two classes (PPG I 2016). In Senegal, 3,500 plant and algae species distributed in 1,000 genera (Bâ and Noba 2001; MEPN 2010) have been identified. The phanerogams make up around 71% of the species and the remaining 29% are distributed among pteridophytes, bryophytes, and algae. Since the great botanical explorations of the region dating back to the colonial period (Mingou 2014), collection efforts have been very variable depending the plant groups.
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