“116 
s 
Ne 
uy! 
wy 
Nis 
SSH al) YP 
—WYB 
NY Wz 
wg y 
WZ 
Fic. 211.—A H7zp- 
puris vulgarts 
with  verticillate 
inflorescence; B 
separate flower 
consisting of a 
pistil with a long 
wart-like stigma 
and a single sta- 
men (magnified). 
y* ‘ = 
' * oe ¥ mage oh 4. 
\ : ; MR \ 
so tructural and Physiological Bova | ee ee 
- An additional point to note 1 ae 
quently the number of the different parts of 
the flower is not always the same in the same 
species. Thus in Adoxa Moschatellina and 
Monotropa hypopitys, the petals of the ter-— 
minal flowers of the inflorescence are five in 
number ; of the lower flowers on the contrary 
four; in Atriplex the perianth of the female 
flowers 1s two-leaved, while that of the male 
and polygamous flowers is three to five- 
leaved. 
THE INFLORESCENCE. 
The flowers stand either solitary or grouped 
together according to a definite law, on 
branched or thickened flower-stalks. 
group of. flowers is termed an znflorescence; 
[the common stalk of the inflorescence is 
then the feduncle, the separate stalks of 
the individual flowers jedice/s, and the axis 
of the inflorescence the rachis]. Solitary 
flowers are usually seated each in the axil of. 
a leaf or bract as in the deadly nightshade, 
Atropa Belladonna, \ess often at the apex of 
the stem as in Parzs guadrifolia, or of a scape 
as in the tulip. In some plants with verticil- 
late leaves a single flower is produced in the 
of the calyx ; when the whole is adherent, the calyx- 
limb is. then’ odsolete, as in many Umbelliferze ; F 
when only a portion, then the calyx-limb is said to be 
superior, or half-superior, as the case may be. The 
term cohesion is used to express the union of similar ~ 
parts, as stamens with stamens, or petals with petals 5 
adhesion the union of dissimilar parts, as stamens with | 4 
ioe German the: uns 
corolla, -or calyx with ovary. 
same term is‘used for ‘both.— Ep.]- 3 
& 
<s <= 
Such a _ 
