Taxodiaceae Research Articles

Effects of Destruction and Alteration of Habitat on Distribution of Specific Genera of Taxodiaceae

Effects of Destruction and Alteration of Habitat on Distribution of Specific Genera of Taxodiaceae

The influence of the rooting substrate at 5 Gymnosperm species.

In this paper there are presented the results regarding the influence of the rooting substrate on 5 species from the Coniferales order, subdividion Gymnospermae. The species take it into study are: Cryptomeria japonica D.Don (Fam. Taxodiaceae), Chamaecyparis pisifera S. et Z. (Fam. Cupressaceae), Thuja occidentalis L. (Fam. Cupressaceae), Juniperus horizontalis Mnch. (Fam. Cupressaceae) and Taxus baccata L. (Fam. Taxaceae). All the research has been carried out within the Botanical Garden Al. Buia from Craiova, in the multiplication greenhouse, using warm substrate. There has been used 2 rooting substrate perlite and sand (Table 1, Table 2). For the rooting percentage an important role have the rooting substrate and thats why we have to take it into account their capacity for water retaining and the aeration coefficient.

Paleocene gymnosperms from Mount Somers, New Zealand

Thirteen conifer macrofossils and a gymnospermous leaf of uncertain affinity are documented from the early‐mid Paleocene of the Mount Somers coal mine, Canterbury, New Zealand Podocarpaceae are prominent and diverse Two taxa are formally described as new genera of Podocarpaceae, Mumu somerensis gen et sp nov and Tiotio imbricatus gen et sp nov A second species of Kakahuta K drinnanu, is described There are also two species of Prumnopitys, P limaniae sp nov and P sp ‘Mt Somers’ A further five taxa of Podocarpaceae are informally described Shoots with decussately‐arranged scale leaves are identified as Libocedrus cf L bidwillii (Cupressaceae) Paahake papillatus gen et sp nov is compared with Sciadopitvs (Taxodiaceae) and Torreya (Taxaceae) A single small piece of cuticle belongs in the Araucanaceae and is tentatively identified as Araucana An additional new genus and species, Hoiki mcqueenu gen et sp nov , has an unusual epidemial morphology with transversely oriented stomates but is of unknown affinity These species grew in a clastic swamp where Podocarpaceae formed one of the major elements The Libocedrus and Prumnopitys specimens are the oldest macrotossil records of a conifer genus extant in New Zealand New terms are introduced for stomatal distribution on conifer leaves

Athrotaxis alkaloids. Part I. Alkaloids of A. Cupressoides

Eleven homoerythrina-type alkaloids ( tilda1 - tilda9 , tilda11 , tilda12 ) have been isolated from A. cupressoides (Taxodiaceae), of which six ( tilda6 - tilda9 , tilda11 , tilda12 ) had not previously been reported.

Checklist of Gymnospermae naturalised in New Zealand

Abstract One taxon of Araucariaceae, 5 taxa of Cupressaceae, 23 of Pinaceae, 1 of Taxaceae, and 2 of Taxodiaceae are recorded as naturalised or occasionally wild in New Zealand.