OUTLINES OF BOTANY. XLVII 
Such a complete symmetrical flower consists usually of either four 
or poe whorls of altered leaves (88), placed immediately one within the 
— 
e Calyx — naa outer whorl. Its parts are called sepals. 
The orolla next whorl. Its parts, called petals, neually 
alternate with the fanny that is to say, we vere “ each petal is imme 
diately on —_ — pope Sacer 
The a i petals. If in two 
whorls, ode me the eltee one oe. esi mnie) alternate with the petals, 
and are consequently opposite to, or over the centre of the sepals; those 
of the inner whorl (the inner stamens) alternate with the outer ones, and 
are therefore opposite to the petals. If there is only one who rl of 
inner row of stamens. 
91. In an axillary or lateral flower the upper parts of each — iecpe: 
petals, stamens, or seiipede) are those yeas are next to th of 
the stems or branch, the eas parts et which are ferthio ont hoi wig 
the intermediate ones are said t ba lat. a! The words anterior (rent 
and posterior (back) — often vis for bai ste Seve respective yen 
their meaning is so reversed if the writer supposes S himself 4 
the centre of the Ace sietad of outside of i it. 
92. number of parts in each whorl of a flower is aa adjec- 
tively by the following numerals derived from the Greek:— 
mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, dcto-, ennea-, deca-, etc., poly- 
1-, 2-, 3-, 4-, 5-, 6-, +; 8-, 9-, 10-, many - 
prefixed to a termination indicating the whorl referred to. 
93. Thus, a Flower i 
disepatous, peep te aba eh ae sett ed etc., Teerege as 
there are 2, 3, y (or ndefinit mber of) se 
peace aa abe pe Serica a * pore t= as ye! are 2, 3, 
or many petals. 
psecegvin triandrous, polyandrous, ete., according as there are 2, 3, 
or many :e 
di mousy trig ynous, polygynous, etc., according as there are 2, 3, or 
many carpe 
And gen one by ede gota Ressapitinn trimerous, polymerous, ete., 
aetonne as ther ae y (or indefinite number of ) parts 
oe whorl. 
. Flowers are unsymmetrical or anisomerous, strictly speaking, when 
shag one of the whorls sad a eagles number of parts from any othe 
but when the pistils alon number, the flower is still 
frequently called symm igang or Tanbenee if the calyx, corolla, and 
~— whorls have all the same number of parts. 
. Flowers are irregular when the parts of any one of the whorls are 
lie in size, dissimilar in shape, or do not spread r regularly round the 
axis at equal distances. It is, however, more especially i irregularity of the 
corolla that is referred to in descriptions. a gs oy inequality in size or 
direction in the other whorls does not prevent the flower being classed 
as regular, if the corolla or perianth is so tae oa and regular. 
