STUDY OF BOTANY. 
269 
fourteen or fifteen feet round and rising straight, and without a branch 
(shewing the advantage of removing side branches) for seventy or 
feet, where they were crowned with luxuriant tops. 
An intimate knowledge of the habits and growth of the different 
species of forest trees, and the influence of soil and local climate 
on their periodical increase of timber is absolutely required in the 
business of valuing plantations prospectively. 
It seems an extraordinary fact in Natural History that wherever 
the original forest is destroyed in America, and the land left uncul¬ 
tivated, trees of a different species should spring up. This is always 
observed where lands have been laid waste by lire. The first year 
tall weeds, raspberry and bramble bushes shoot up, then cherry trees, 
white birch, silver firs, and white populars appear; but seldom any 
trees of the genus previously growing on the space laid open by the 
devouring element. 
The great trees of the fir, maple, black birch, and beech tribes, 
when once destroyed, do not seem ever to be succeeded in the ground 
they occupied by trees of the same kind. On the banks of the Slane- 
lake, land formerly covered wholly with spruce, fir, and birch, hav¬ 
ing been laid waste by fire, produced subsequently nothing but 
poplars. 
An Old Planter and Pruner. 
NATURAL HISTORY. 
article vil—on the study and science of botany. 
BY F. F. ASHFORD. 
(Continued from Page 223.) 
Of Luxuriancy in Flowers .—A flower is said to be luxuriant when 
some of the parts are augmented, and others thereby excluded. The 
part multiplied is usually the corolla, but sometimes the calyx also, 
and bv the increase of the covers, the essential parts of the fructifica¬ 
tion are destroyed. Luxuriant flowers are divisible into 
1 Multiplicate, multiplied. 3 Proliferous, producing young. 
2 Pleni, full. 4 Mutilate, maimed, deficient. 
1. Multiplicate. Flowers are so, when by the increase of the 
corolla, only a part of the stamina are excluded, and this distin¬ 
guishes them from the flores pleni, (full flowers.) Multiplicate 
