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INTRODUCTION TO BOTANY. 101
virens, Juncus : but Link and others with more propriety
restrict the term perigonium to those single integuments of
flowers whose appearance renders it doubtful whether they
ought to be considered either as a calyx or corolla, or as
a union of the two soldered together, the inner surface
having the characters of a corolla, and the outer of a calyx
and as to the others, they consider them either as calyces
or corollas, according to circumstances.
Receptacle of the flower, Seat of the flower, Receptaculumjioris^
Sedes flor'is, Toms,—cl'mium,—thalammn. That
part of the flower on which the sexual organs and corolla
are placed, and which is surrounded by the calyx ; being
an enlargement of the peduncle. PI. 10, fig. 4 e; 6f;
pi. 11, fig. 12 a.
Nectary, Nectarium. Glandular organs which in some
flowers are situated on the receptacle, or base of the pistil,
and secrete peculiar juices. Menyanthes nymphoides, Scrophularia
sambucifolia, Scutellaria alpina. PI. 11, fig. 5,
4, 12 b.
^ Flowret, Floscidus. A small flower considered as part
of a larger compound flower. Umbelliferss, Compositse.
15. Modes of Composition,
In catkins, amentaceous, Flores amentacei, in julos collecti.
Disposed on bracte^ on a common axis. Betula,
Salix, Pinus, Quercus. PI. 7, fig. 5 and 6; pi. 10, fig J 8.
Spiked, spicati. Sessile on a common axis. Triticum,
Chenopodium spinacifolium, Plantago. PL 7, fig. 3 ; pi. 8,
Bunched, in bunches, racemosi. On single-flowered pedicells
upon a common axis. Ribes rubrum, Cerasus racemosa,
Borago officinalis. PI. 8, fig. 6.
In panicles, paniculate, paniadaii, jubaii. On branched
pedicells upon a common axis. Avena sativa, Juncus acu-
tus. PI. 8, fig. 7.
In thyrses, in thyrsos coUecii. In a close, oval panicle.
Syringa vulgaris. PI. 7, fig. 4.
Irregularly ^mbelled, corymbose, corymhosi. In umbels
whose peduncles are irregularly branched. Achillea mille-
folia, Cardamine pratensis, Iberis umbellata. PI. 7, fig. 2.
Cymose, cymosi. In umbels whose peduncles are branched
twice, and irregularly. Sambucus niger, S. humilis, Cornus
sanguinea. PL 7, fig. 8.
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