摘要:

AbstractEvidence from the gametophytes ofTortula stanfordensisSteere andT. khartoumensisPettet is presented to support their retention in the genusTortulaand their exclusion from the genusHyophilain which they have been included in recent years. Notes on some species possibly related toT. stanfordensisare included.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.377

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

摘要:

AbstractDicranella ripariais shown to be more appropriately treated asKiaeria ripariacomb. nov.;Kiaeria glacialisis shown to be a misfit inDicranum;Oncophorus sardousis placed in synonymy ofO. wahlenbergii;Arctoa anderssoniiis shown to be a distinct species.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.383

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

摘要:

AbstractLejeunea brenaniisp. nov. andMicrolejeunea ankasicasp. nov. are described.Lejeunea autoicaSchuster andPycnolejeunea contigua(Nees) Grolle are described and recorded as new to Africa.Lejeunea longirostris(Steph.) E.W. Jones, nom. inval., is a synonym ofL. grossecristata(Steph.) E.W. Jones. Critical notes and/or new localities are provided forColura digitalis(Mitt.) Steph.,C. duseniiSteph.,C. humbertiiS. Jovet-Ast,C. sp. ad inornataJovet-Ast,Marchesinia moellerianaPearson.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.387

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.401

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

摘要:

AbstractA new species,Acaulon eremicolais described from aridcentral Australia. It differs fromA. muticumandA. integrifoliumin the leaf with longer cells and longer usually downwardly curved acuminate apex with twisted arista, the strongly incurled leaf margins when dry, and different spore pattern.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.467

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

摘要:

AbstractDesmatodon bogosicusC.Muell. hal. (1872) is shown to provide an earlier name for the recently describedTortula khartoumensisPettet (1967). A new record of the species is supplied, from northern Kenya, and its generic position discussed.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.475

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.479

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.491

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

摘要:

AbstractThe Quaternary history ofMeesia longisetain the British Isles is briefly reviewed, and two new records described, one Flandrian, the other Ipswichian. A note on identification is provided.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.511

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor

摘要:

AbstractTwo species of moss growing in Moss Lake on Signy Island, South Orkney Islands, had unusual morphologies with large leaves and long internodes. BothCalliergon sarmentosumandDrepanocladuscf.aduncusdiffered from their terrestrial counterparts and from each other in the character of their leaves. The two genera differed in the ability of the terrestrial forms to develop a large-leaved growth form.Calliergon, which was represented by the same species in both environments, changed to the aquatic morphology when separated shoots were grown either submerged or under damp conditions. Ught intensity was not an important factor influencing change in morphology. In contrast, terrestrialDrepanocladus uncinatus, the closest taxonomic counterpart ofD. cf. aduncuson Signy Island, did not show any adaptation under similar conditions. The aquatic forms also showed a corresponding degree of plasticity in their natural habitat.Calliergonvaried from robust shoots to microphyllous or even leafless stems whereasDrepanocladus cf. aduncusonly grew in the robust form. These differences were related to the success of the two species at different depths and it is suggested that the very low compensation points of the two mosses (reported in a separate study) resulted from the morphology of the plants.

ISSN:0373-6687    

DOI:10.1179/jbr.1979.10.4.517

出版商:Taylor&Francis    

年代:1979

数据来源: Taylor