ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.159

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

摘要:

AbstractThe occurrence of subspeciespallidicaulisofFissidens taxifoliusin West Scotland and South-West Ireland is reported.

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.161

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.163

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.167

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

摘要:

AbstractDitrichum cornubicumsp. nov. is a small plant with obtuse leaf apices, and tubers on the rhizoids, and has been assigned toDitrichumsomewhat tentatively because female inflorescences and sporophytes are unknown. It has been gathered in two areas in Cornwall where copper and tin were formerly extracted, and its habitat is described.

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.171

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

摘要:

AbstractEvidence is presented contradicting claims that tubers occur on the rhizoids ofCeratodon purpureus(Hedw.) Brid. These claims are believed to have arisen through confusion with other plants, particularlyDicranella staphylinaWhiteh.,Barbula arcuataGriff. andDitrichum pusillum(Hedw.) Britt. An account is given of the tubers ofB. arcuata.

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.177

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

摘要:

AbstractVariation in British material ofSphagnum capillaceum(Weiss) Schrank andS. rubellumWils. was studied by principal component analysis. No evidence was found for the existence of discrete taxa. The characters that have been used to distinguish the two were indeed correlated, but the correlations were not strong enough to justify retention ofS. rubellumeven as a variety.

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.185

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.193

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

摘要:

AbstractTwo new species of Acaulon,A. chrysacanthumandA. leucochaeteare characterized by lamellae on the adaxial surface of the nerve and are placed in a new subgenus,Alaticosta. Acaulon chrysacanthumhas leaves with the nerve excurrent as a stout reddish-gold arista, and brown papillose spores, 30–35µm in diameter.Acaulon leucochaetehas the nerve excurrent as a long colourless flexuose hair point and buff-coloured spores, more finely papillose and 23–25µm in diameter. Both are species of semi-arid areas usually growing on red sandy soil in mallee scrub.

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.213

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor

摘要:

AbstractA new species,Pleuridium curvisetum, is described. It has an arched seta similar to that ofP. arnoldiiand was collected, sometimes in association with that species, in alpine country in Australia. P. arnoldii was first recorded from New Zealand. A comparison of the two species revealed some features, including a bistratose margin to the leaf subula, not previously reported forP. arnoldii.

ISSN:0373-6687    

DOI:10.1179/jbr.1976.9.2.229

出版商:Taylor&Francis    

年代:1976

数据来源: Taylor