Peer Review #2 of "Synoptic revision of the fern genus Elaphoglossum Schott ex J.Sm. (Dryopteridaceae) in Madagascar, with the description of 23 new taxa, all but one endemic (v0.1)" [peer_review]

2020 unpublished
After 15 years of field studies in Madagascar, especially focused on the overlooked fern genus Elaphoglossum (Dryopteridaceae), a synoptic revision of the genus is here presented. Based on more than 2600 herbarium specimens including collections over 200 years, Elaphoglossum is the second most diversified fern genus in Madagascar, with 52 species and 3 subspecies (with 76% of endemism). It is to be compared to the 34 species treated by Tardieu-Blot in 1960 for the 'Flore de Madagascar et des
more » ... adagascar et des Comores' or the 38 species listed by Roux in 2009 in the seminal 'Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands'. The 55 taxa represent five out of seven existing generic sections (sect. Amygdalifolia and sect. Wrightiana being monotypic and Neotropical): sect. Lepidoglossa (29 spp. and 3 subspp.), sect. Elaphoglossum (17 spp.), sect. Setosa (3 spp.), sect. Squamipedia (2 spp.), and sect. Polytrichia (1 sp.). Distribution is given for each species and subspecies, and detailed for each island or archipelago in the Western Indian Ocean (La Réunion, Mauritius, Seychelles, and Comoros). Twenty species and three subspecies are newly described, all but one endemic to Madagascar: Elaphoglossum ambrense Rouhan, Elaphoglossum andohahelense Rouhan, Elaphoglossum anjanaharibense Rouhan, Elaphoglossum approximatum Rouhan, Elaphoglossum brachymischum Rouhan, Elaphoglossum cerussatum Tardieu subsp. brunneum Rouhan, Elaphoglossum coracinolepis Rouhan, Elaphoglossum desireanum Rouhan, Elaphoglossum glabricaule Rouhan, Elaphoglossum gladiifolium Rouhan, Elaphoglossum leucolepis (Baker) Krajina ex Tardieu subsp. nanolepis Rouhan, Elaphoglossum leucolepis (Baker) Krajina ex Tardieu subsp. nigricans Rouhan, Elaphoglossum longiacuminatum Rouhan, Elaphoglossum patriceanum Rouhan, Elaphoglossum perangustum Rouhan, Elaphoglossum prominentinervulum Rouhan, Elaphoglossum rakotondrainibeae Rouhan, Elaphoglossum repandum Rouhan, Elaphoglossum sabineanum Rouhan, Elaphoglossum sinensiumbrarum Rouhan, PeerJ reviewing PDF | (Manuscript to be reviewed Elaphoglossum subglabricaule Rouhan, Elaphoglossum tsaratananense Rouhan, and Elaphoglossum viridicaule Rouhan. Morphological description, distribution map, and original illustrations are provided for each new taxon. Novel identification keys to the sections and all species from Madagascar are also presented. PeerJ reviewing PDF | ( Manuscript to be reviewed 1 Synoptic revision of the fern genus Elaphoglossum Schott ex 2 J.Sm. (Dryopteridaceae) in Madagascar, with the description 3 of 23 new taxa, all but one endemic 4 Germinal Rouhan 1 5 Manuscript to be reviewed 14 Synoptic revision of the fern genus Elaphoglossum 15 Schott ex J.Sm. (Dryopteridaceae) in Madagascar, 16 with the description of 23 new taxa, all but one 17 endemic Abstract 32 After 15 years of field studies in Madagascar, especially focused on the overlooked fern genus 33 Elaphoglossum (Dryopteridaceae), a synoptic revision of the genus is here presented. Based on 34 more than 2600 herbarium specimens including collections over 200 years, Elaphoglossum is the 35 second most diversified fern genus in Madagascar, with 52 species and 3 subspecies (with 76% 36 of endemism). It is to be compared to the 34 species treated by Tardieu-Blot in 1960 for the 37 'Flore de Madagascar et des Comores' or the 38 species listed by Roux in 2009 in the seminal 38 'Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring 39 islands'. The 55 taxa represent five out of seven existing generic sections (sect. Amygdalifolia 40 and sect. Wrightiana being monotypic and Neotropical): sect. Lepidoglossa (29 spp. and 3 41 subspp.), sect. Elaphoglossum (17 spp.), sect. Setosa (3 spp.), sect. Squamipedia (2 spp.), and 42 sect. Polytrichia (1 sp. ). Distribution is given for each species and subspecies, and detailed for 43 each island or archipelago in the Western Indian Ocean (La Réunion, Mauritius, Seychelles, and 44 Comoros). Twenty species and three subspecies are newly described, all but one endemic to 45 Madagascar: Elaphoglossum ambrense Rouhan, Elaphoglossum andohahelense Rouhan, Elaphoglossum 46 anjanaharibense Rouhan, Elaphoglossum approximatum Rouhan, Elaphoglossum brachymischum Rouhan, 47 Elaphoglossum cerussatum Tardieu subsp. brunneum Rouhan, Elaphoglossum coracinolepis Rouhan, 48 Elaphoglossum desireanum Rouhan, Elaphoglossum glabricaule Rouhan, Elaphoglossum gladiifolium Rouhan, 49 Elaphoglossum leucolepis (Baker) Krajina ex Tardieu subsp. nanolepis Rouhan, Elaphoglossum leucolepis (Baker) 50 Krajina ex Tardieu subsp. nigricans Rouhan, Elaphoglossum longiacuminatum Rouhan, Elaphoglossum 51 patriceanum Rouhan, Elaphoglossum perangustum Rouhan, Elaphoglossum prominentinervulum Rouhan, 52 Elaphoglossum rakotondrainibeae Rouhan, Elaphoglossum repandum Rouhan, Elaphoglossum sabineanum PeerJ reviewing PDF |
doi:10.7287/peerj.10484v0.1/reviews/2 fatcat:bxisl4i5lzd5piooyuwhveaa3m