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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.
Twelve genera are excluded from the sub-Saharan Africa checklist based on evidence from literature or re-identification. Atractylocarpus, Chorisodontium, Ctenidium, Dicranodontium, Homalia, Isothecium, Lasiodontium, Meesia and Potamium are excluded as the collections belong to other genera, and Camptochaete, Phyllodrepanium and Ptychomnion are excluded because of evidence of mistaken (or no longer existing) localities. As a consequence, the following families no longer are known from Africa: Echinodiaceae, Lembophyllaceae, Phyllodrepaniaceae and Ptychomniaceae. Ectropothecium nishimurii O’Shea & Ochyra, nom. nov. replaces Ectropothecium mauritianum (Broth.) Nishimura, hom. illeg., and Kindbergia kenyae (Dixon ex Tosco & Piovano) O’Shea & Ochyra, comb. nov. replaces Isothecium kenyae Dixon ex Tosco & Piovano. Lasiodontium mieheanum Ochyra in S. Miehe & G. Miehe, nom. nud., is a synonym of Daltonia angustifolia Dozy & Molk. and accordingly Lasiodontium Ochyra in S. Miehe & G. Miehe, nom. nud., must be placed in synonymy with Daltonia Hook. & Taylor.
Eine komplette Liste aller auf den Seychellen gefundenen Laubmoose wird gegeben, die 107 Arten enthält. Darin werden 24 Arten angeführt, welche von S. Porembski im Frühjahr 1995 auf den Seychellen gesammelt wurden. Sieben Arten [Acanthorrhynchium loucoubense (Besch.) Fleisch., Brachymenium exile (Dozy & Molk.) Bosch & Lac., Campylopus robillardei Besch., Campylopus nanophyllus C. Müll. in Broth., Fissidens crispulus Brid., Leucoloma sinuosulum C. Müll. ex Besch. und Vesicularia albo-viridis (Ren.) Broth.] werden neu für die Seychellen nachgewiesen. Acroporium punctuliferum (Thw. & Mitt.) und Luisierella barbula (Schwaegr.) Steere Fleisch. sind neu für Afrika. Die floristischen Bezüge der Laubmoosflora der Seychellen zu denen der anderen ostafrikanischen Inseln wird kalkuliert.
This is the first in a series of papers listing new records, which will be published whenever sufficient new records have been found. The taxa are arranged by countries for an easier evaluation, e.g. updates of checklists. The initials of the contributor for each record is shown in square brackets after the record, and these initials are interpreted at the end of the paper.
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.
All specimens in BM labelled Phyllodon truncatus or P. truncatulus have been examined, together with two new Uganda collections, and all African species conform to the type of P. truncatus, and all American species conform to the type of P. truncatulus. Buck’s (1987) assessment of this genus is supported, and it is confirmed that P. truncatulus does not occur in Africa.
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.