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1969•American Journal of BotanyRequires access

Further Observations on Zosterophyllum llanoveranum from the Lower Devonian of South Wales

Dianne Edwards

Open publisher page 34 citations

Abstract

Zosterophyllum llanoveranum was first described by Croft and Lang in 1942. This account presents the anatomy of the axes. Details of the sporangium wall in the vicinity of the dehiscence line are reported and the spores are described. The plant is compared with other members of the genus Zosterophyllum and also with those Devonian plants possessing exarch protosteles and lateral sporangia, which Banks has placed in the subdivision Zosterophyllophytina.

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What this paper is about

Zosterophyllum llanoveranum was first described by Croft and Lang in 1942. This account presents the anatomy of the axes. Details of the sporangium wall in the vicinity of the dehiscence line are reported and the spores are described. The plant is compared with other members of the genus Zosterophyllum and also with those Devonian plants possessing exarch protosteles and lateral sporangia, which Banks has placed in the subdivision Zosterophyllophytina.

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Available abstract

Zosterophyllum llanoveranum was first described by Croft and Lang in 1942. This account presents the anatomy of the axes. Details of the sporangium wall in the vicinity of the dehiscence line are reported and the spores are described. The plant is compared with other members of the genus Zosterophyllum and also with those Devonian plants possessing exarch protosteles and lateral sporangia, which Banks has placed in the subdivision Zosterophyllophytina.

Key concepts: Sporangium, Devonian, Biology, Spore, Genus, Dehiscence, Subdivision, Paleontology

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