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Study on Chenopodium purpurascens B. DE JUSS. ex JACQ. and on some related taxa
Author(s) -
Dvořák F.
Publication year - 1992
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/fedr.19921030302
Subject(s) - coat , biology , botany , orange (colour) , taxon , chenopodium , horticulture , ecology , weed
C. SPEGAZZINI published in 1902 from Argentina C. purpurascens B. DE JUSS. ex JACQ. having seeds only with orange up to chestnut seed‐coat; c.b. for the seeds (for 1: 1.31–1.37 mm., for w: 1.20–1.28 mm., n = 91) considerably overlaps the c.b. of the seeds (having the same colour of the seed‐coat) of C. fallax (AELLEN) D. (c.b. for 1: 1.31–1.44 mm., for w: 1.16–1.26 mm., n = 200). Seeds (identical or related with the seeds of C. SPEGAZZINI'S specimen) could have been introduced with wool to Europe. Here there took place their hybridization with European species of the range of C. album agg. and later there arose hybridogenous species: C. fallax (AELLEN). D. and C. pseudoborbasii J. MURR. These species have double seeds: a) seeds whose colour of the seed‐coat and the sizes ± agree with the colour and the sizes of seeds of C. SPEGAZZINI'S specimen; b) seeds with the black seed‐coat and ± the sizes of seeds of the species that the hybridization realized with.