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The palaeotropic moss genus Radulina W.R.Buck & B.C.Tan is revised, resulting in the genus being reduced to four species and one variety. The following 14 names become synonyms of the oldest name in the genus, Radulina borbonica (Bél.) W.R.Buck: Hypnum hamatum Dozy & Molk., Sematophyllum subinstratum Besch., Hypnum trachyamphorum Müll.Hal., Sigmatella hamicuspis Müll.Hal. in Paris, nom. nud., Trichosteleum borbonicum var. brachycarpum Renauld & Cardot, Trichosteleum subtile Broth. & Watts, Trichosteleum aequoreum M.Fleisch. ex Dixon, Trichosteleum elegantissimum M.Fleisch., Trichosteleum elegantissima var. scabriseta M.Fleisch., Trichosteleum hamatum var. glabriseta M.Fleisch., Trichosteleum hamatum var. tuberculisetum M.Fleisch., Trichosteleum carolinarum Dixon, Trichosteleum neocaledonicum Thér, Trichosteleum flexuosa-hamatum Dixon. In addition, three of these taxa are lectotypified: Trichosteleum subtile Broth. & Watts, Trichosteleum aequoreum M.Fleisch. ex Dixon and Trichosteleum hamatum var. tuberculisetum M.Fleisch. The following are new combinations: Radulina borbonica var. ferriei (Cardot & Thér. in Thér.) O’Shea (= Radulina hamata var. ferriei (Cardot & Thér. in Thér.) B.C.Tan & Y.Jia), Radulina sematophylloides (Dixon) O’Shea (= Trichosteleum sematophylloides Dixon) and Trichosteleum koghiense (Thér.) O’Shea (= Trichosteleum neocaledonicum var. koghiense Thér.).
12 hepatics and 32 mosses are reported new to Uganda, 1 moss being also new to Africa, and 1 liverwort new to mainland Africa. Ectropothecium plumigerum (Broth.) Hedenäs is a new combination (basionym: Isopterygium plumigerum Broth.) with a new synonym Taxicaulis plumirameus Müll.Hal. nom. nud., and Taxiphyllum maniae (Renauld & Paris) M. Fleisch. is a new synonym of Taxiphyllum taxirameum (Mitt.) M.Fleisch. Three mosses are removed from the Uganda list.
The nine species and two varieties of Schoenobryum reported for Africa were investigated, and no characters were found that uniquely identified any of the taxa to be other than the pantropical Schoenobryum concavifolium. The following nine names become new synonyms of S. concavifolium: Cryphaea madagassa, C. subintegra, Acrocryphaea robusta, A. latifolia, A. subrobusta, A. tisserantii, A. latifolia var. microspora, A. plicatula and A. subintegra var. idanreense; a lectotype is selected for Acrocryphaea latifolia var. microspora P.de la Varde.
Gammiella ceylonensis (Broth. in Herzog) W.R.Buck & B.C.Tan is the only species of the genus in Africa. Clastobryella pusilla (Thér.) Wijk & Margad., recorded from Madagascar, the only member of the genus still recorded on the moss checklist for Africa, is a synonym of Gammiella ceylonensis. Clastobryella foliicola P.de la Varde is not a synonym of Gammiella ceylonensis but probably an Ectropothecium, thus removing the only west African record for Gammiella. An extension of range into South Africa is also noted, so Gammiella is now known from east and southern Africa and Madagascar.
Manual of tropical bryology
(2003)
Bryophytes belong to the oldest land plants. They existed already in the Palaeozoic 300 mio years ago in forms which were hardly different from the extant species. They remained relatively unchanged with relatively low evolution rates (and are thus often called a „conservative“ plant group), but could successfully establish themselves in an always varying environment from Devonian swamps to Permian forests, Mesozoic deserts and as epiphytes in Tertiary rainforests. They are not eaten by snails or insects, and are resistant against fungi and bacteria.
Felipponea assimilis (Müll.Hal.) O’Shea is the correct name to be used for all African collections of Felipponea, a species found in Uruguay, Brazil, Bolivia, southern and eastern Africa and the East African islands. Hypnum maritimum Müll.Hal. and Cladomnion montevidensis Müll.Hal. are new synonyms. Lectotypes are selected for Neckera assimilis Müll.Hal., Cladomnion montevidensis Müll.Hal. and Braunia peristomata Dixon in Sim & Dixon.
A number of collections from Africa identified as Phyllodon scutellifolius or Glossadelphus serpyllifolius belong to Bryocrumia vivicolor, previously known only from America and Asia. Phyllodon scutellifolius is known only from one (possibly two) collections from Madagascar, and Glossadelphus serpyllifolius is a synonym of Bryocrumia vivicolor.