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VOCABULARY. 
Pe’ri. Around. 
Per'ianlh. A sort of calyx. 
Per icarp , (from peri, around, and 
karpos, fruit.) A seed vessel or 
whatever contains the seed 
Perig'ynous. From peri, 
and gynia, pistil. 
Pe'risperm. From peri, around, and 
sperma, seed ; around the seed 
Permanent. Any part of a plant is 
said to be permanent when it re 
mains longer than is usual for sim- 
ilar parts in most plants 
Persistent. Not falling off. See Per- 
manent. 
Per'sonale. Masked or closed. 
Pe tal. The leaf of a corolla, usu- 
ally coloured. 
Pe'tiole. The stalk which supports 
the leaf. 
Phcnog'amous. Such flowers as have 
stamens and pistils visible, inclu- 
ding all plants except the crypto- 
gamous. 
Phisiol'ogy. Derived from the Greek, 
a discourse of Nature. 
Phylol'ogy. The science which treats 
of the organization of vegetables, 
nearly synonymous with the phys' 
iology of vegetables. 
Pi'leus. The hat of a fungus. 
Pillar. See Columella and Column. 
Pilose. Hairy, with distinct straight 
ish hairs. 
Pilus. A hair. 
Pimpled. See Papillose. 
Pinna. A wing feather, applied 
leafets. 
PinnaCt. A leaf is pinnate when 
the leafets are arranged in two 
rows on the side of a common pe- 
tiole, as in the rose. 
Pinnal'ijid. Cut in a pinnate man 
ner. It differs from pinnate, in 
being a simple leaf deeply parted, 
while pinnate is a compound ol 
distinct leafets. 
Pistil. The central organ of most 
flowers, consisting of the germ, 
style, and stigma. 
Pis'tillate. Having pistils but no sta- 
mens. 
Pith. The spongy substance in the 
centre of the stems and roots of 
most plants. See Medulla. 
Plaited. Folded like a fan. 
Plane. Flat with an even surface 
Plica'lus. See Plaited. 
Plumo'se. Feather-like. 
Plu'mula , or Plume. The ascending 
part of a plant at its first germina- 
tion. 
around, Plu'rimus. Very many. 
Pod. A dry seed vessel, not pulpy, 
most commonly applied to legumes 
and siliques. 
Po'dosperm. From podos, a part, 
and sperma, seed ; pedicel of the 
seed. 
Pointal. A name sometimes used 
for pistil. 
Pollen. Properly fine flour, or the 
dust that flies in a mill. The dust 
which is contained within the an- 
thers. 
Po'lus. Many. 
Polyan'drous. Having many sta- 
mens inserted upon the receptacle. 
Polygamous. Having some flowers 
which are perfect, and others with 
stamens only, or pistils only. 
Polymorphous. Changeable, assum- 
ing many forms. 
Polypel'alous. Having many petals. 
Polyphyl'lous. Having many leaves. 
Pome. A pulpy fruit, containing a 
capsule, as the apple. 
Porous. Full of holes. 
Prcemorse. Ending bluntly, as if bit- 
ten off; the same as abrupt. 
Pras'inus. Green, like a leek. 
Pratcn’sis. Growing in meadow land. 
Prickle. Differs from the thorn in 
being fixed to the bark, the thorn 
is fixed to the wood. 
Prismat'ic. Having several parallel 
flat sides. 
Proboscis. An elongated nose or 
snout, applied to projecting parts of 
vegetables. 
Process. A projecting part. 
Procum'bent. Lying on the ground. 
Prolif erous. A flower is said to be 
proliferous when it has smaller 
ones growing out of it. 
Prop. Tendrils and other climbers. 
Prox'imus. Near. 
Pseudo. When prefixed to a word, 
it implies obsolete or false. 
Pubes' cent. Hairy, downy, or woolly. 
Pulp. The juicy cellular substance 
ol berries and other fruits. 
Pulver ulent. T urning to dust. 
Pu'milus. Small, low. 
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