An introduction to the study of English botany / [George Banks].

  • Banks, George, active 1823-1832.
Date:
1832
Catalogue details

Licence: Public Domain Mark

Credit: An introduction to the study of English botany / [George Banks]. Source: Wellcome Collection.

    24/100 (page 14)
    The most unequivocal of all nectaries, as actually secreting honey, are those of a glandular kind; as in cruciform flowers, where there are generally four glands at the base of the stamens, as in Brassica, (Cabbage.) The term Nectary appears indeed to be re- sorted to by Botanists when a flower possesses an organ which cannot be actually ranged under either of the seven heads of fructification. In other words, if a flower be so constructed that some par- ticular member of it does not properly belong to either of the regular parts of fructification, that member is usually and arbitrarily termed a nectary. Having thus considered the Calyx and Corolla, it remains to be observed, that in certain flowers in which one of these is wanting, it is sometimes difficult to decide whether that which is present should be termed Calyx or Corolla. If however it be of a delicate texture and coloured, it may be commonly considered the Corolla; if coarse, and not coloured, (for botanists do not consider green to be a colour) the Calyx. This is not given as a mode of discrimination to be relied upon in all cases ; but merely as a rule by which Botanists appear to be most generally governed.