Cockayne L. 1911. Observations concerning evolution, derived from ecological studies in New Zealand. Transactions of the New Zealand Institute 44: 1-50
Notes
p.9 Phormium "mutations" - mentions distinct looking forms recognized by Māori.
p.31. Hybridization: suggests much of variation in P. tenax may be due to hybrid elementary species. E.g. Chatham Island form, with its thin broad leaves distinct from any mainland forms.
Bibliographic details
Observations concerning evolution, derived from ecological studies in New Zealand
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reference
12 June 2007
21 June 2020