New Zealand Journal of Botany abstract
Artificial intergeneric hybrids between the New Zealand endemic
Ischnocarpus and Pachycladon (Brassicaceae)
P. B. HEENAN
Landcare Research
P.O. Box 69
Lincoln, New Zealand
Abstract Artificial intergeneric hybrids between the New
Zealand endemic
Pachycladon novae-zelandiae and two species of
Ischnocarpus are described. The hybrids are
Pachycladon
novae-zelandiae ([[phi]]) x
Ischnocarpus novae-zelandiae (u), and
P. novae-zelandiae ([[phi]]) x
I. exilis (u). The two sets of
hybrids produce viable pollen, and F2 families of each have been raised.
Pachycladon and
Ischnocarpus share several morphological
characters, and these, along with the ability to form intergeneric hybrids,
suggest that the two genera are closely related. The two genera also differ in
a number of characters, and it is concluded that it is premature to make any
taxonomic changes without considering relationships with other New Zealand and
Australian genera.
Keywords Pachycladon novae-zelandiae;
Ischnocarpus exilis; Ischnocarpus novae-zelandiae;
intergeneric hybrid; New Zealand flora
B99014
Received 17 March 1999; accepted 5 August 1999
PDF file of entire paper: medium quality (594K); (scanned from paper original: notes about this process)
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