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INTRODUCTION TO BOTANY. 113
Branched, ramosus. The main peduncle divided into
secondary and third peduncles. Achillaea crithmifolia.
PI. 7, fig. 2.
^ Close, coarctatus. The peduncles are brought close to
each other. Achillea millefolia, Sedum triphyllum, Mespilus
monogyna, Crataegus terminalis, Pyrus aucuparia.
Loose, laxus. The peduncles are far apart from one
another. Ornithogalum umbellatum.
% Regular, regularis. The peduncles are so proportioned
that all the flowers are on a regular height, either flat or
convex. Achillea millefolia. PL 7, fig. 2.
Irregular, irregularis. The peduncles are of such different
length, that the flowers are of an irregular height.
Many of the radiated compositee.
The loose and irregular corymbi degenerate into panicles.
The simple corymbi are only depressed racemes ; in
many of the cruciferse the original corymbus lengthens out
into a raceme.
MUSCARIUM.
A corymbus of flowers not all on the same level.—Eupatorium.
Cyme.
Cyma. The main peduncle throivs out secondary peduncles
frorii one and the same point, and these separate again into
pedicels which spring from differe7it parts of the secondary
peduncles, and raise the, flowers nearly to the same height.—
Sambucus, Cornus, Erythr^ea vulgaris, Nerium Oleander.
The variations of it are nearly the same with those of
the corymbus.
Bundle.
Fasciculus. The flowers are upright, grouped parallelly
together very close, and are all nearly of the same height.—
Dianthus barbatus, D. Carthusianorum.
The variations are but slight, and easily made out by
analogy.
Umbel.
Umbella. The flowers are home upon peduncles springing
from the same point, the hranches leing of an equal length.
Simple, Umbella simplex. The peduncle only once divided
into rays. Butomus umbellatus. PI. 7, fig. 9.
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