in a given length of the spiral, could easily be seen without mutilating the other specimens. The exact date also of each specimen should be registered, whereby many ambiguities would be removed. For instance, it is common to find characters derived from... Monographia Salicum: Pars I. - Página 154de Nils Johan Andersson - 1865 - 180 páginasVista completa - Acerca de este libro
| George Luxford, Edward Newman - 1842 - 220 páginas
...length and pubescence of its stalk, the nectary, the character of the axis, and the number of ovaria in a given length of the spiral, could easily be seen...would immediately make evident,—sometimes, as in the vitninalis group, from £ to \. Good specific characters frequently disappear in the drying process,—for... | |
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