102 
SYNOPSIS OF THE EXTERNAL ORGANS OF PLANTS. 
Organs of nu¬ 
trition, or parts 
necessary to the < 
growth of the 
plant. 
Organs of re¬ 
production, or v 
parts of fructi¬ 
fication. 
ORGANS OF PLANTS. 
THE ROOT. 
THE STEM. 
THE BUD. * 
THE LEAF. 
THE FLOWER. 
THE FRUIT. 
SUBDIVISIONS, 
f NECK OR ROOT, STALK. 
S CAUDEX, 
t RADICLES. 
J BRANCHES, 
^ PETIOLES, 
PEDUNCLES, 
SCALES. 
$ branchlets, 
l boughs , 
{ ; pedicels . 
APPENDAGES. 
LEAFETSo 
C STIPULES, 
PRICKLES, 
THORNS^ 
C LANDS, 
STINGS, 
NECTARY 
STAMEN 
PISTIL. 
SCALES, 
TENDRILS, 
PUBESCENCE,. 
^ BRACTS. 
calyx .{ sepals , or leaves. 
COROLLA petals. 
( sometimes a part of the corolla , 
sometimes a separate organ . 
filament , 
anther ,— { pollen. 
stigma , 
style , 
ovary or germ ,— { ovules. 
Contains all parts of the fruit 
which are not the seed, as, 
pericarp. { cells , 
valves , 
dissepiments , 
r columella , 
hilum ,. 
albumen , 
cotyledons , 
, $ radicle , 
embryo, ] p[wmi 
SEED 
LECTURE XVII. 
PHYSIOLOGICAL VIEWS—GERMINATION 01* THE SEED, 
We have traced the various organs of the plant, through their suc¬ 
cessive stages of development, mom the root to the bud, leafj and 
flower, and from the flower to the fruit and seed. We have seen, in 
imagination, the vegetable world fading under a change of tempera¬ 
ture, the “ sear and yellow leaf” becoming a prey to the autumnal 
blasts, and even the fruits themselves exhibiting a mass of decayed 
matter. Were this appearance of decay and death now pre¬ 
sented to us for the first time, how gloomy would be the prospect! 
How little should we expect the return of life, and: beauty, apd fra¬ 
grance bNo.power short of Omnipotence, could effect thisit is in¬ 
deed a miracle! But we are so accustomed to these changes, that, 
“ seeing, we perceive notwe think not of the mighty Being who 
produces them ; we call them the operations of nature ; but w T hat is 
Enumerate the organs of nutrition—Of reproduction—What are the parts of the 
root 1 —The Stem—Bud—Leaf—Different kinds of Appendages—Divisions of the ca¬ 
lyx—Corolla—Nectary—Stamens—Pistil—What are the parts of the fruit?—What 
are the parts of the pericarp ?—Parts of the seed—Of the Embryo—What remarks 
commence this lecture ? ' ^ 
