Darwin-Hooker Letters : Letter from J. D. Hooker to C. R. Darwin [6 December 1857]
Hooker, Joseph Dalton
Darwin-Hooker Letters
<p style='text-align: justify;'>Finds CD’s results [of his survey of well-marked varieties from A. P. and Alphonse de Candolle’s <i>Prodromus systematis naturalis regni vegetabilis</i> (1824–73)] "very curious and suggestive". Thinks the Labiatae will present an obstacle to him as it is a very large and distinct order with well-defined species and genera. Would like to see him tackle more volumes of Candolle’s <i>Prodromus</i>, as his case can only be established by evidence from mundane plants. CD should beware of generalising from local species variability. A comparison of C. C. Babington’s and G. Bentham’s [British] <i>Floras</i> [Babington <i>Manual of British botany</i> (1843, 4th ed., 1856); Bentham <i>Handbook of British flora</i> (1858)] would be invaluable. Suggests CD write to Ferdinand Müller and Charles Moore in Australia. Moisture favouring extension of species is important for CD’s view.</p>