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 corollse, according to circumstances. 
Receptacle of the flower, Seat of the flower, Receptacle 
lum floris , Sedes floris 9 Torus , — clinium , — thalamum. 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. PL 10, fig. 4 e; 6 f ; 
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, Scro^ 
phularia sambucifolia, Scutellaria alpina. PI. 11, fig. 5, 
4, 12 b. 
Flowret, Flosculus. A small flower considered as part 
of a larger compound flower. Umbelliferse, Composite, 
15. Modes of Composition, 
In catkins, amentaceous, Flores amenlacei , in julos col- 
lect i. Disposed on bracteae on a common axis. Betula, 
Salix, Pinus, Quercus. PI. 7, fig. 5 and 6 ; pi. 10, fig 18, 
Spiked, spicati. Sessile on a common axis. Triticum, 
Chenopodium spinacifolium, Plantago. PI. 7, fig, 3 ; pi. S, 
fig. 1. 
Bunched, in bunches, racemosi. On single-flowered pe- 
dicel Is upon a common axis. Ribes rubrum, Cerasus ra-* 
cemosa, Borago officinalis. PI. 8, fig. 6. 
In panicles, paniculate, paniculati, jubali, On branched 
pedicells upon a common axis. Avena sativa, Juncus acu- 
tus, PI. 8, fig. 7. 
In thyrses, in thyrsos collecti. In a close, oval panicle, 
Syringa vulgaris. PL 7, fig. 4. 
Irregularly umbelled, corymbose, corymbosi , In umbels 
whose peduncles are irregularly branched, Achillea mille^ 
folia, Cardamine pratensis, Iberis umbellata, PL 7, fig. 2. 
Cymose, cymosi. In umbels \ nose peduncles are branched 
twice, and irregularly. Sambucus niger, S. humilis, Cornus 
PL 7, fig. 8. 
