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INTRODUCTION TO BOTANY. 
Noon, meridiani. Not opening until the middle of the 
day. Mesembryanthemum crystallinum, M. nodiflorum. 
Night, nocturni. Open late in the evening, and close 
again in the morning. Mirabilis Jalapa, Geranium triste, 
Silene noctiflora. 
1 4. Parts of a flower . 
Sexual organs, Genitalia , — gonoi. The parts of the 
flower appropriated to the reproduction of the species; 
which include the pistil, stamens, and gymnostemium, and 
are essential to the very being of a flower. 
Pistil, Pointal, Pistillum, — — gynos. The female 
organ of the plant, seated in the centre of the flower, and 
most commonly single. PI. 9, fig. 7, b ; pi. 10, fig. 1, a, b ; 
5, d; 6, e; 9, c; 17, a. 
Chive, Stamen , — stemon. The male organ of the plant 
surrounding the pistil, and most commonly five in number. 
PI. 9, fig. 7, c; pi. 10, fig. 1, c; 5, c; 6, d; 9, a, b. 
Gymnostemium , Columna. An organ found only in some 
few plants, and formed by a union of the male and female 
organs, into a single columnar mass. Orchideae. PI. 12, 
fig. 2, 3, 4, 6, spid 8. 
Floral integuments, Covers of the sexual organs, Tc- 
gumenta , Integumenta floralia , Perigynandra . The parts of 
the flower which cover and defend the sexual organs, at 
least while young ; usually two, but one or even both are 
wanting in some plants : they comprise the corolla, calyx, 
and perigonium. 
Bloom, Blossom, Corolla , Auleum , Perigynandra interior . 
The internal integument when there are two ; it is usually 
of a fine texture and gay colour, does not remain and ad- 
here to the fruit, and is inserted on the receptacle either 
conjointly with the stamens, or at the same point. PI. 9, 
fig. 10, 11, 12; pi. 10, fig. 5, b; 8, b, c, d; 13, 14, 15, 17. 
Empalement, Flower-cup, Calyx , Thalamus , Perianthium , 
Perigynandra exterior . The external integument when 
there are two ; it is usually of a coarse texture and green 
colour ; it frequently remains after the flowering is over, 
and adheres to the fruit, and is always perfectly distinct 
from the stamens. PI. 9, fig. 10; 12 a; 13; pi. 10, 
fig. 8a; 15. 
Perigonium De Candolle, Perianthium Mirbel, Brown, 
Calyx Jussieu. The integument of a flower when there is 
but one, whatever may be its appearance. Convallaria, 
Lilium, Hyaciuthus, Tulipa, Aristolochia, Daphne semper- 
