The New Zealand Aneuraceae were investigated and twenty seven species within the genus Riccardia S. F. Gray revised, illustrated and lectotypified where necessary. Notes and figures for five members of Aneura Dum. [A. ?pinguis Dum., A. alterniloba (Hook. f. & Tayl.) Tayl. var. alterniloba, A. ?lobata (Schiffn.) Steph. subsp. australis Schust., A. ?subaquatica Schust. and A. sp. aff. novaguineensis Hewson] are presented.
Of the twenty seven Riccardia species studied nineteen have been previously described. Five new recombinations from Aneura have been made; Riccardia papulosa (Steph.) E. A. Brown, R. aequitexta (Steph.) E. A. Brown, R. pusilla (Steph.) E. A. Brown, R. alba (Col.) E. A. Brown and R. australis (Hook. f. & Levéille) E. A. Brown and eight are new names: R. furtiva E. A. Brown & Braggins, R. umida E. A. Brown, R. multicorpora E. A. Brown, R. breviala E. A. Brown, R. pennata E. A. Brown, R. perspicua E. A. Brown, R. intercellula E. A. Brown and R. exilis E. A. Brown (which has been erected because the name under which it had been placed is already occupied).
The variation in most morphological features such as cell size, thallus width and thickness, cell wall thickness, epidermal wall sculpturing, oil-bodies and stolons, gemmae and sometimes papillae production is considerable. This means that a suite of characters usually needs to be used to positively discriminate between the facies of some taxa.
The Holarctic species of Diploschistes are revised and a key to the 14 species accepted is provided. The distribution of ten species is mapped. The new combinations D. aeneus (Müll. Arg.) Lumbsch and D. prominens (Müll. Arg.) Lumbsch are made. Several new synonyms are listed.
This catalogue provides an annotated listing of the liverworts and hornworts from the Guianas (Guyana, Surinam, French Guiana), based on the literature and on new data that have become available in the framework of the “Flora of the Guianas” project. In total 375 species in 93 genera are recorded, including more than 100 species and 28 genera new to the Guianas. A list of synonyms (including 30 new ones), a systematic arrangement of the genera and families, and an index to the collectors are also given.
In analysis of the distribution of 298 Western Melanesian moss species the material is divided into 11 groups according to general distribution. In addition the floristic affinities of the island of New Guinea, as well as collecting activity in Western Melanesia are presented. The material is tabulated but statistical methods or the methods of vicariance biogeography are not used in this analysis. The need is stressed for monographs on a sound cladistical basis, enabling more profound biogeographical studies.
On the basis of anatomical and morphological characteristics of the gametophyte, Hypopterygium commutatum is transferred to the monotypic genus Canalohypopterygium. The canal systems of the stem and setaceous short branches are characteristic of it. Though another taxon, the monotypic genus Catharomnium from the same subfamily (Hypopterygioideae) also shows these characteristics, grouping the two taxa under one genus does not seem justified because of the different peristomes. As all the representatives of the genus Hypopterygium, Canalohypopterygium commutatum is diplolepidous, Catharomnium ciliatum on the other hand is haplolepidous.
Members of the Philippine Sematophyllaceae were revised. As a result, six new records are reported for the country: Clastobryophilum bogoricum, Clastobryum caudatum, C. conspicuum, C. scalare, Gammiella ceylonensis, and Heterophyllium affine. Hageniella pacifica is found new to Borneo based on a BRYOTROP collection. Five new synonyms and one new combination are proposed. Lectotypes are selected for Aptychella yunnanensis Broth., Clastobryella tenerrima Broth. and Hageniella pacifica Broth. New groupings of genera belonging to the four subfamilies are also attempted.
Kindbergia praelonga (Hedw.) Ochyra is reported for the first time from South America on the basis of a collection from the Malvinas (Falkland) Islands. The Malvinas Islands' plants are briefly described and illustrated. The nomenclatural problems associated with the names Kindbergia Ochyra and Oxyrrhynchium (Schimp. in B. S. G.) Warnst. are treated at length. Eurhynchium Schimp. in B. S. G. subg. Oxyrrhynchium Schimp. in B. S. G. is lectotypified with E. velutinoides Schimp. in B. S. G. [= Cirriphyllum reichenbachianum (Hueb.) Wijk et Marg.] and accordingly this subgenus has to be considered synonymous with Cirriphyllum Grout. The taxonomic status of Sciaromium flavidulum Dusén is discussed and the species is placed in synonymy with Eurhynchium fuegianum Card. The sporophytes of E. fuegianum are described for the first time and the distribution map of these species in austral South America is presented.
After examining the type specimens of 10 Frullania species from Latin America 9 of them are reduced to synonyms of other species : F. confertiramea Steph., F. cruegeri Steph., and F. pulcherrima Steph. = F. exilis Tayl.; F. leptophylla De Not. = F. caulisequa (Nees) Nees ; F. duricaulis Spruce and F. amoena Steph. = F. gymnotis Nees & Mont.; F. spicata Steph. = F. glomerata (Lehm. & Lindenb.) Nees & Mont.; F. pachoensis Steph. = F. intumescens (Lehm. & Lindb.) L. & L.; F. barbeyana Steph. = F. beauverdii Steph. The remaining species, F. closterantha Spruce, which was reduced to synonymy of F. intumescens (Lehm. & Lindb.) L. & L. is considered to be a proper species. Types of all species are figured and described.