Bark anatomy of southern South American Cupressaceae

Anatomical and macroscopic features of the bark are described for the Cupressaceae indigenous to southern South America: Austrocedrus chilensis, Fitzroya cupressoides and Pilgerodendron uviferum. Macroscopically there are two different types: 1) with rather deep longitudinal and transverse fissures,...

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Detalles Bibliográficos
Autores principales:	De Magistris, A.A., Castro, M.A.
Formato:	JOUR
Materias:	Austrocedrus chilensis Bark anatomy Cupressaceae Fitzroya cupressoides Pilgerodendron uviferum Secondary phloem South America Austrocedrus Fitzroya Pilgerodendron
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_09281541_v22_n4_p367_DeMagistris
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_09281541_v22_n4_p367_DeMagistris
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spelling	todo:paper_09281541_v22_n4_p367_DeMagistris2023-10-03T15:47:20Z Bark anatomy of southern South American Cupressaceae De Magistris, A.A. Castro, M.A. Austrocedrus chilensis Bark anatomy Cupressaceae Fitzroya cupressoides Pilgerodendron uviferum Secondary phloem South America Austrocedrus Austrocedrus chilensis Austrocedrus chilensis Cupressaceae Fitzroya Fitzroya cupressoides Fitzroya cupressoides Pilgerodendron Pilgerodendron uviferum Pilgerodendron uviferum Anatomical and macroscopic features of the bark are described for the Cupressaceae indigenous to southern South America: Austrocedrus chilensis, Fitzroya cupressoides and Pilgerodendron uviferum. Macroscopically there are two different types: 1) with rather deep longitudinal and transverse fissures, and short ridges or scales varying in adherence (Austrocedrus); and 2) with deep fissures, and elongate and wide ridges, which contain the rhytidome accumulated over several years (Fitzroya and Pilgerodendron). The pattern of the secondary phloem of the three species studied agrees closely with that of the other genera of Cupressaceae, but there are diagnostic differences as well: arrangement of the fibre rows, fibre types, frequency of resin ducts and the ray height. Pilgerodendron uviferum shows rays with erect marginal cells, similar to Strasburger cells, whereas ray sclereids in the fibre crossing zones were only observed in Austrocedrus. Resin ducts are present in Austrocedrus and Fitzroya. The main characteristics are used for an identification key. Anatomical relations with other genera of the family are discussed. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09281541_v22_n4_p367_DeMagistris
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Austrocedrus chilensis Bark anatomy Cupressaceae Fitzroya cupressoides Pilgerodendron uviferum Secondary phloem South America Austrocedrus Austrocedrus chilensis Austrocedrus chilensis Cupressaceae Fitzroya Fitzroya cupressoides Fitzroya cupressoides Pilgerodendron Pilgerodendron uviferum Pilgerodendron uviferum
spellingShingle	Austrocedrus chilensis Bark anatomy Cupressaceae Fitzroya cupressoides Pilgerodendron uviferum Secondary phloem South America Austrocedrus Austrocedrus chilensis Austrocedrus chilensis Cupressaceae Fitzroya Fitzroya cupressoides Fitzroya cupressoides Pilgerodendron Pilgerodendron uviferum Pilgerodendron uviferum De Magistris, A.A. Castro, M.A. Bark anatomy of southern South American Cupressaceae
topic_facet	Austrocedrus chilensis Bark anatomy Cupressaceae Fitzroya cupressoides Pilgerodendron uviferum Secondary phloem South America Austrocedrus Austrocedrus chilensis Austrocedrus chilensis Cupressaceae Fitzroya Fitzroya cupressoides Fitzroya cupressoides Pilgerodendron Pilgerodendron uviferum Pilgerodendron uviferum
description	Anatomical and macroscopic features of the bark are described for the Cupressaceae indigenous to southern South America: Austrocedrus chilensis, Fitzroya cupressoides and Pilgerodendron uviferum. Macroscopically there are two different types: 1) with rather deep longitudinal and transverse fissures, and short ridges or scales varying in adherence (Austrocedrus); and 2) with deep fissures, and elongate and wide ridges, which contain the rhytidome accumulated over several years (Fitzroya and Pilgerodendron). The pattern of the secondary phloem of the three species studied agrees closely with that of the other genera of Cupressaceae, but there are diagnostic differences as well: arrangement of the fibre rows, fibre types, frequency of resin ducts and the ray height. Pilgerodendron uviferum shows rays with erect marginal cells, similar to Strasburger cells, whereas ray sclereids in the fibre crossing zones were only observed in Austrocedrus. Resin ducts are present in Austrocedrus and Fitzroya. The main characteristics are used for an identification key. Anatomical relations with other genera of the family are discussed.
format	JOUR
author	De Magistris, A.A. Castro, M.A.
author_facet	De Magistris, A.A. Castro, M.A.
author_sort	De Magistris, A.A.
title	Bark anatomy of southern South American Cupressaceae
title_short	Bark anatomy of southern South American Cupressaceae
title_full	Bark anatomy of southern South American Cupressaceae
title_fullStr	Bark anatomy of southern South American Cupressaceae
title_full_unstemmed	Bark anatomy of southern South American Cupressaceae
title_sort	bark anatomy of southern south american cupressaceae
url	http://hdl.handle.net/20.500.12110/paper_09281541_v22_n4_p367_DeMagistris
work_keys_str_mv	AT demagistrisaa barkanatomyofsouthernsouthamericancupressaceae AT castroma barkanatomyofsouthernsouthamericancupressaceae
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Bark anatomy of southern South American Cupressaceae

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