Zobrazeno 1 - 10
of 51
pro vyhledávání: '"R.K. Crowden"'
Publikováno v:
Papers and Proceedings of the Royal Society of Tasmania. 134:75-78
RAPD (random amplified polymorphic DNA) markers were used to delimit species in the Epacris tasmanica complex (Epacridaceae) collected from various locations in Tasmania, Australia. The RAPD analysis placed morphologically similar taxa located closel
Autor:
R.K. Crowden, Y Menadue
Publikováno v:
Papers and Proceedings of the Royal Society of Tasmania. 124:113-118
Pollen grains of most known species of Epacris in Australia were examined by scanning electron microscopy. There is a range of pattems of surface ornamentation present, based upon which the species can be grouped into two broad classes: (l) "smooth",
Publikováno v:
Acta Horticulturae. :140-140
Publikováno v:
Papers and Proceedings of The Royal Society of Tasmania. 116:165-177
The vegetation of the Lower Gordon Ri vel' Basin consists of rainforest, sclerophyll forest, scrub and sedgeland-heath, each of which is composed of a nWllber of plant conununi ties forming an intricate mosaic. Field studies conducted over three sunu
Publikováno v:
Austral Ecology. 7:3-12
The vegetation associated with sandy alkaline pans and surrounding acidic peats in south-west Tasmania is described. The upper margins of the pans are characterized by sharp environmental discontinuities, with pH changes of more than 3 units in only
Autor:
R.K. Crowden, Y Menadue
Publikováno v:
Papers and Proceedings of The Royal Society of Tasmania. 123:87-96
A key to all Ranunculus species occuring in Tasmania is provided. Diagnostic characters are presented by means of diagrams. Ecological notes, the main distinguishing features, and chromosome numbers are given for each species.
Publikováno v:
Phytochemistry. 11:1083-1088
The anthocyanins and flavones present in different colour forms of Pisum sativum have been identified and related to the genetic constitution of the plants. Two new anthocyanin pigments, delphinidin 3-sophoroside-5-glucoside, and delphinidin 3-sambub
Publikováno v:
Phytochemistry. 16:400-402
3-Glucosides and 3,5-diglucosides of pelargonidin, cyanidin, peonidin, delphinidin, petunidin and malvidin have been identified as flower pigments in Fuchsia species. These pigments in varying admixture appear to be solely responsible for different f
Autor:
R.K. Crowden
Publikováno v:
Papers and Proceedings of The Royal Society of Tasmania. 120:17-19
Epacris apsleyensis R.K. Crowden, sp.nov. and Epacris grandisRK Crowden, sp. nov. are described. Notes on the distribution, habitat and affinities of both species are included.
Autor:
R.K. Crowden, S.J. Jarman
Publikováno v:
Phytochemistry. 12:171-173
Cyanidin-3-xylosylarabinoside, cyanidin- and delphinidin-3-rhamnosylgalactoside and cyanidin-3-xylosylgalactoside have been identified during a survey