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INTRODUCTION TO BOTANY. 159
ones will occur in the explanation of the twelfth plate.
The Orchidece are the 2 1 st family of the second series, and
are described in vol. ii. p. 197 to 215.
RECEPTACLE OF THE FLOWER.
Receptaculum, Torus, Sedes floris. Thalamus, Discus, —
thalamum— clinium. The expanded point of the peduncle
from which the several parts of the flower arise.
Contracted, Receptacidum contractum. The dimension
being small.—The limits of the receptacle are the points
from whence the corolla arises, if there is one, or the
sexual organs, if there is not any corolla.
Dilated, dilatatum, latum. Potentilla.
Flat, planum. Potentilla.
Hollow, cavum. Rosa.
Convex, convexum. Rubus.
Prominent, with a gynophore, prominens, gynophoratum.
Having a prominent projection, or gynophore. Cleome,
Reseda, Dianthus, Silene.
Gynophore.
Carpophore, Gynophorum, Carpophorum. A prominency
arisingfrom the receptacle^ supporting the pistill.
One-styled, Gynophorum monosiylum. Supporting a
single ovary. Cleome, Dianthus, Silene.
Many-styled, polystylum. Myosurus, Ranunculus, Gomphia
nitida.
Stamen-bearing, staminiferum. Supporting the stamens
also. Thalictrum, Cleome pentaphylla, Silene, Passiflora.
Blossom-bearing, corolliferum. Supporting the petals
also. Dianthus, Silene.
^ Conical, conicum.
Cylindrical, cylindricum.
Hemispherical, hemisphericum.
It is sometimes difficult to distinguish between the gynophore
and the nectary.
Disk.
Discus. A protuberance on the receptacle of the flower,
from whence the petals and stamens arise. Rhamnus,
—