denomination, 7 kinds, his favourite number; these are,
1. The Aggregate flower properly so called, as just mentioned.
2. The Compound flower previously described.
3. The Amentaceous flower, or Catkin, of which we have spoken p. 248.
4. The Glumose, or Chaffy flower, peculiar to the Grasses, see p. 250.
5. The Sheathed flower, whose common receptacle springs from a Sheath, as in Arum.
6. The Umbellate; and
7. The Cymose flowers, concerning which two last a few observations are necessary.
Linnæus and his friend Artedi thought the great natural umbelliferous order could not be divided into good and distinct genera by the seeds or parts of the flower, without taking into consideration the general and partial involucral leaves, which they therefore chose to consider as a part of the fructification, and defined as a calyx remote from the flower. The rays of the umbel, of course, became the subdivisions of a
