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Lejeunea bermudiana (A.Evans) R.M.Schust. The Hepaticae and Anthocerotae of North America 4: 1105 (1980). Taxilejeunea irregularis Steph. Species Hepaticarum 5: 490, 1914; Stephani, Icones Ineditae 10103. — Type: Guadeloupe, Duss 514 (holo-, G[G00069917!], autoic.), syn. nov. Remarks Lejeunea bermudiana is a common Caribbean species that is characterized by sharply apiculate leaves without or with 1-2 additional teeth on the ventral margin near apex, inflated lobules c. ¼× leaf length, thin-walled leaf cells, and bifid underleaves c. 3× stem width and with a cordate-subauriculate base, autoicous sexuality and toothed female bracts and perianths (Schuster 1980, as Crossotolejeunea bermudiana A.Evans; Reiner-Drehwald & Goda 2000)., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 213, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144

Frullania kunzei (Lehm. & Lindenb.) Mont. Histoire physique, politique et naturelle de l'Île de Cuba, Botanique, Plantes cellulaires 537 (1842). (fide Stotler 1969, as F. neesii; Gradstein & Costa 2003) Frullania minima Steph. Species Hepaticarum 4: 532 (1911). Frullania urbanii Steph., Species Hepaticarum 4: 527 (1911). Remarks A widespread neotropical species., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 212, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144, {"references":["GRADSTEIN S. R. & COSTA D. P. 2003. - The Hepaticae and Anthocerotae of Brazil. Memoirs of the New York Botanical Garden 87: 1 - 318."]}

Rectolejeunea flagelliformis A.Evans Bulletin of the Torrey Botanical Club 33: 9 (1906). (fide Reiner- Drehwald & Grolle 2012). Rectolejeunea dussii Steph. (Cheilolejeunea dussii Steph., nom. inval.) Remarks A species with scattered distribution in the Neotropics (Reiner- Drehwald & Grolle 2012)., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 213, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144

Drepanolejeunea valiae Jovet-Ast Revue Bryologique et Lichénologique 18: 38 (1949). — Type: Guadeloupe, Ananas, «avec Bazzania sur branchette», Allorge s.n. (holo-, PC[PC0102340!]). 16° 16° FIG. 4.— Distribution of Frullania trigona L.Clark,Jovet-Ast & Frye (★) and Riccardia innovans (Steph.) Pagán (●) in Guadeloupe. Remarks Drepanolejeunea valiae has been reported from Dominica (Schuster 1992, 1996) and Jamaica (Schäfer-Verwimp & van Melick 2016), hence is not endemic to Guadeloupe.According toBischler (1964) and Schuster (1996) it is a good species. The holotype material was erroneously cited as “isotype” by Bischler (1964)., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on pages 209-210, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144, {"references":["BISCHLER H. 1964. - Le genre Drepanolejeunea Steph. en Amerique Centrale et Meridionale. Revue Bryologique et Lichenologique 33: 15 - 179."]}

Harpalejeunea stricta Lindenb. & Gottsche) Steph. Species Hepaticarum 5: 259 (1913).— Type: Mexico, Veracruz, Mirador, Liebmann s.n., c. gyn. (isosyn-, G[G00115038, G0011539]!). Harpalejeunea herzogii Jovet-Ast, Feddes Repertorium Species Novae Regni Veg. 58: 19 (1955). — Type: Guadeloupe, “Carbet, sur rocher humide,” 15.II.1936, P. & V. Allorge s.n., c. gyn. (holo-, PC[PC0103158!]), syn. nov. Remarks Harpalejeunea stricta is a widespread neotropical species. Harpalejeunea herzogii is a phenotype with ciliate perianths; typical H. stricta has shortly toothed keels. In other respects, the two species are identical. Perhaps H. herzogii may be retained as a variety of H. stricta. In Brazil plants with ciliate perianths has been described as H. schiffneri S.W.Arnell (see Gradstein & Costa 2003), which may be a further synonym of H. stricta., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 212, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144, {"references":["GRADSTEIN S. R. & COSTA D. P. 2003. - The Hepaticae and Anthocerotae of Brazil. Memoirs of the New York Botanical Garden 87: 1 - 318."]}

Gradstein, S. Robbert, Bernard, Elisabeth Lavocat (2020): An evaluation of the endemic bryophyte flora of Guadeloupe. Cryptogamie, Bryologie 20 (15): 205-214, DOI: 10.5252/cryptogamie-bryologie2020v41a15, URL: http://dx.doi.org/10.11646/zootaxa.4878.3.2

Frullania trigona L.Clark, Jovet-Ast & Frye (Figs 1, 4) The Bryologist 50: 52 (1947). — Type: Guadeloupe, Traces Hugues, “sur branchettes”, P. & V. Allorge s.n. (iso-, PC[PC0102212, PC0102211 (slide)]!). Remarks Frullania trigona is a member of subg. Frullania sect. Microphyllae (R.M.Schust.) Gradst., Lima & Ilk. -Borg., a small group of about ten species including three in the Neotropics (Lima et al. 2020). Characteristic of this section are the small, dioicous plants, less than 1 mm wide, with caducous leaf lobes, ocelli in leaf lobes (and sometimes in underleaves), and small, distant underleaves.Within this group, F.trigona stands out by scattered ocelli in leaves but not in underleaves, margins of leaves and underleaves distantly crenulate by projecting trigones,underleaves scarcely wider than the stem, and female bracts and bracteoles with entire margins. The species is only known from the type., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 206, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144

Cheilolejeunea rigidula ( Mont.) R.M.Schust. Castanea 36 (2): 102 (1971). Cheilolejeunea falcata Steph., Species Hepaticarum 5: 655 (1914). Cheilolejeunea ovistipula Steph., Hedwigia 34: 244 (1895). Bastos (2017: 42, fig. 12). — Type: Guadeloupe, l’Herminier 124 (holo-, G[G00112875!]), syn. nov. DISTRIBUTION. — A species widespread in tropical America and Africa. Remarks Cheilolejeunea ovistipula is a phenotype of C. rigidula with rather large trigones and a relatively long lobule tooth. The record of C. ovistipula from Capesterre-Belle-Eau, Guadeloupe (Bastos 2017: “on isolated tree at the margin of banana plantation, 400 m, 3 April 2002, Schäfer-Verwimp & Verwimp 22500/ C”) presumably belongs to C. rigidula as well., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 209, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144, {"references":["BASTOS C. J. P. 2017. - O genero Cheilolejeunea (Spruce) Steph. (Lejeuneaceae, Marchantiophyta) nas Americas. Pesquisas, Botanica 70: 5 - 78."]}

Radula pallens (Sw.) Mont. Voyage dans l'Amérique Méridionale Botanique 71 (1839). Radula subsimplex Steph., Hedwigia 23: 130 (1884); Castle (1959: 21, fig. 22); Yamada (1980: 254, fig. 9). — Type: Guadeloupe, without collector (holo-, G[G00043857]!, c. andr.). Further collection: Guadeloupe, “leg. Germain, misit Dr. l’Herminier” (G[G00112875!]), syn. nov. Remarks Radula pallens is a widespread neotropical species, that has been misunderstood in the past and was considered endemic to Jamaica (Gradstein in press). Radula subsimplex is a phenotype of R. pallens with lobule margins not sinuate. Several Caribbean species of Radula described by Castle (1959) in the section “ Dichotomae ”, such as R. obovata Castle and R. varilobula Castle, are probably further synonyms of R. pallens., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 213, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144, {"references":["CASTLE H. 1959. - A revision of the genus Radula. Part II. Subgenus Acroradula, Section 3. Dichotomae. Journal of the Hattori Botanical Laboratory 21: 1 - 52."]}

Lejeunea pulverulenta (Steph.) M.E.Reiner Cryptogamie, Bryologie 26: 60 (2005). — Basionym: Taxilejeunea pulverulenta Steph., Type: Guadeloupe, l’Herminier s.n. (lecto-, designated by Reiner-Drehwald [2005], G[G00052572!]). Taxilejeunea linguifolia Steph. (“ linguaefolia ”) Species Hepaticarum 5: 471 (1914); Stephani, Icones Ineditae 10033. — Type: Guadeloupe, l’Herminier s.n. (lecto-, designated here, G[G00043994!], c.gyn.; isolecto- (?), without collector, G[G00043993!], ster.), syn. nov. Remarks Lejeunea pulverulenta is a rather rare neotropical species that is known from Guadeloupe, Guyana and the northern Andes (Reiner-Drehwald 2005; Gradstein in press). The latter author already suggested the present synonymy based on the description and illustration of T. linguifolia by Jovet-Ast (1949). Study of the types confirmed that the two species are identical. Both were collected by l’Herminier in Guadeloupe and were described by Stephani in the same fascicle of Species Hepaticarum, as members of the genus Taxilejeunea., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 213, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144

Frullania brasiliensis Raddi Crittogame Brasiliane 12 (1822). Frullania guadalupensis Steph. (“Gottsche ex Steph.”), Species Hepaticarum 4: 496 (1911). — Type: Guadeloupe, l’Herminier s.n. (lecto-, G[G00120036!], c. gyn. juv.; isolecto-, G[G00262943!], PC[PC0102248!]), syn. nov. Remarks Frullania guadelupensis has been reported from Brazil (Stotler 1969) and Colombia (Van Reenen et al. 1984; Vasco et al. 2002), hence is not endemic to Guadeloupe. Although mature perianths are lacking in the type material, the large plant size, the recurved, apiculate leaf tips, the narrowly recurved underleaf margins and the subentire female involucres indicate that the plants belong to the common F. brasiliensis. The latter species is widespread in the Neotropics (e.g., Stotler 1969; Gradstein & Costa 2003)., Published as part of Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, pp. 205-214 in Cryptogamie, Bryologie 20 (15) on page 210, DOI: 10.5252/cryptogamie-bryologie2020v41a15, http://zenodo.org/record/7822144, {"references":["GRADSTEIN S. R. & COSTA D. P. 2003. - The Hepaticae and Anthocerotae of Brazil. Memoirs of the New York Botanical Garden 87: 1 - 318."]}

Frullania trigona L.Clark, Jovet-Ast & Frye (Figs 1, 4) The Bryologist 50: 52 (1947). — Type: Guadeloupe, Traces Hugues, “sur branchettes”, P. & V. Allorge s.n. (iso-, PC[PC0102212, PC0102211 (slide)]!). Remarks Frullania trigona is a member of subg. Frullania sect. Microphyllae (R.M.Schust.) Gradst., Lima & Ilk. -Borg., a small group of about ten species including three in the Neotropics (Lima et al. 2020). Characteristic of this section are the small, dioicous plants, less than 1 mm wide, with caducous leaf lobes, ocelli in leaf lobes (and sometimes in underleaves), and small, distant underleaves.Within this group, F.trigona stands out by scattered ocelli in leaves but not in underleaves, margins of leaves and underleaves distantly crenulate by projecting trigones,underleaves scarcely wider than the stem, and female bracts and bracteoles with entire margins. The species is only known from the type.

Harpalejeunea stricta Lindenb. & Gottsche) Steph. Species Hepaticarum 5: 259 (1913).— Type: Mexico, Veracruz, Mirador, Liebmann s.n., c. gyn. (isosyn-, G[G00115038, G0011539]!). Harpalejeunea herzogii Jovet-Ast, Feddes Repertorium Species Novae Regni Veg. 58: 19 (1955). — Type: Guadeloupe, “Carbet, sur rocher humide,” 15.II.1936, P. & V. Allorge s.n., c. gyn. (holo-, PC[PC0103158!]), syn. nov. Remarks Harpalejeunea stricta is a widespread neotropical species. Harpalejeunea herzogii is a phenotype with ciliate perianths; typical H. stricta has shortly toothed keels. In other respects, the two species are identical. Perhaps H. herzogii may be retained as a variety of H. stricta. In Brazil plants with ciliate perianths has been described as H. schiffneri S.W.Arnell (see Gradstein & Costa 2003), which may be a further synonym of H. stricta.