published brief comments on the talk by M.P. Porsild, with replies by Raunkiær. A fuller account appeared in French the following year. Raunkiær elaborated further on the system and published this in Danish in 1907.

The original note and the 1907 paper were much later translated to English and published in 1934 with Raunkiær's collected works.

Modernization

Raunkiær's life-form scheme has subsequently

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