摘要:

AbstractThe discovery in Scotland of a moss which has proved to beDicranodontium subporodictyonBroth., hitherto only known in Asia, is announced.

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.185

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

摘要:

AbstractLophocolea bispinosa, new to the British Isles, is described in detail. This small dioecious species, which may have been introduced from New Zealand, is well established in the Isles of Scilly, especially in and around the Abbey Gardens in Tresco.

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.191

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.197

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

摘要:

AbstractThe differences betweenThysanomitriumSchwaegr. andCampylopusBrid. are discussed and regarded as insignificant. Therefore the sixThysanomitriumspecies reported from South America in theIndex Muscorumare critically revised.T. yunqueanumC. Müll. andT. miserumBroth. are synonyms ofCampylopus richardiiBrid., andT. schiffneriBroth. andT. arenaceumBroth. are placed in the genusCampylopusas new combinations. AlsoT. arenaceumis reported from a new locality in Brazil. No material could be found in herbaria ofT. wainoiBroth. andT. gastrotisC. Müll.

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.255

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.265

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

摘要:

AbstractSpores of ten North European species of the genusTortulaHedw. were studied in the transmission electron microscope. In all the sporoderm was more or less covered with finely papillate processes of several different types which divide the genus into a number of groups different from the previously suggested sections. The ornamentation of leaves, peristomes, and spores ofT. norvegica(Web. f.) Wahlenb. has been studied in the scanning electron microscope. The leaf papillae are not c-shaped as suggested in the literature, but branched in a rather complex way. The borders of the basal membrane cells of the peristome appeared to be a continuation of the filamentous portion of the teeth. A comparison withT. ruralis(Hedw.) Gaertn., Meyer&Scherb. revealed the ornamentation to be of the same basic type in the two species.

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.269

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

摘要:

AbstractThe growth of four epiphyllous liverworts,Radula jiaccida, Caudalejeunea hanningtonii, Leptolejeunea astroidea, andCololejeunea pusillavar.obtusifolia, has been followed for a period of about 18 months at three different localities in Western Nigeria over three height-ranges above the ground. The three localities experience different climatic conditions and possess different vegetation. Growth was found to be related to the size of the species, the larger ones always exhibiting faster growth. The liverworts also showed periodicity in growth, related to the wet and dry seasons. There was no period of dormancy, though growth was drastically reduced during the dry season.

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.275

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.291

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1974.8.2.ii

出版商:Taylor&Francis    

年代:1974

数据来源: Taylor