166 
VOCABULARY. 
PeVtate. Having the petiole attached to 
some part of the under side of the 
leaf. 
Pendent. Hanging down, pendulous. 
Pen'cilled. Shaped like a painter's 
pencil or brush. 
Peregri'nus. Foreign, wandering. 
Peren'nial. Lasting more than two 
years. 
Perfo'liaie. Having a stem running 
through the leaf; differs from con- 
nate in not consisting of two leaves. 
Per'foraU. Having holes as if pricked 
through ; differs from punciate,which 
has dots resembling holes. 
Pe'ri. Around. 
Per'ianih. (From peri, around, anihos, 
flower.) A sort of calyx. 
Pericarp. (From peri, around, and Icar- 
pos, fruit.) A seed-vessel or whatever 
contains the seed. 
PeridHum. The round membranous 
case which contains the seeds of some 
mushrooms. 
Perig'ynous. From peri, around, and 
gynia, pistil. 
Periph'ery. The outer edge of the frond 
of a lichen ; the circumference of a 
circle. 
Pe'risperm. (From peri, around, and 
sperma, seed.) Around the seed. 
Skin of the seed. 
Perislo'mium. The fringe or teeth 
around the mouth of the capsule of 
mosses, under the lid. 
Permanent. Any part of a plant is 
JsH'd to be permanent when it remains 
monger than is usual for similar parts 
in most plants. 
Persis'tent. Not falling olf. See Per- 
manent. 
Per'sonate. Masked or closed. 
Pe'tal. The leaf of a corolla, usually 
coloured. 
Pe'tiole. The stalk which supports the 
leaf 
Phenog'amous. Such flowers as have 
stamens and pistils visible, including 
all plants except the cryptogamous. 
PhysioVogy. Derived from the Greek, 
a knowledge of nature. 
Phytol'ogy. The science which treats 
of the organization of vegetables, 
nearly synonymous with the physiolo- 
gy of vegetables. 
Pi'ieole. The outer covering of the 
germinating leaves of monocotyle- 
donous plants; that which formed 
the primordial leaf 
Pi'leus. The hat of a fungus. 
Pillm, See Columella and Column. 
Pilose. Hairy, with distinct, straight- 
ish hairs. ^ 
Pil^u. A hair 
Pimpled. See Papillose. 
Pinna. A wing feather, applied to 
leafets. 
Pinnate. A leaf is pinnate when the 
leafets are arranged in two rows on 
the side of a common petiole, as in 
the rose. 
PinnaVifid. Cut in a pinnate manner. 
It differs from pinnate, in being a 
simple leaf deeply parted, while pin- 
nate is a compound of distinct leafets. 
Pistil. The central organ of most 
flowers, consisting of the germ, style, 
and sligma. 
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. 
Placenta. The internal part of the 
germ or ovary to which every ovule 
is attached, either immediately or by 
the funicle. 
Plaited. Folded like a fan, 
Pla.nc. Flat with an even surface. 
Pli'cate. See Plaited, 
Plumo'se. Feather-like, 
Plu'mula or Plume. The ascending 
part of a plant at its first germination. 
Plu'rimus. Very many. 
Pod. A dry seed-vessel, not pulpy, 
most commonly applied to legume* 
and siliques. 
Podetia. The pedicels which support 
the frond of a lichen. 
Po'dosperm. (From podos, a part, and 
sperma, seed.) Pedicel of the seed. 
The same as the funicle. 
Pointal. A name sometimes used for 
pistil. 
Pollen. Properly fine flower, or the 
dust that flies in a mill. The dust 
which is contained within the anthers. 
Pollin'ia. Masses of polen, as seen in 
the class Gynandria. 
Po'lus. Many. 
Polya7i'drous. Having many stamens 
inserted upon the receptacle. 
Polyceph'alous. See Monocephalous. 
Polyg'amous. Having some flowers 
which are perfect, and others with 
stamens only, or pistils only. 
Polyvior'phous. Changeable, assuming 
many forms. 
Polypet'alous. Having many petals. 
Polypkyl'lous. Having many leaves. 
Polysep'alous. A calyx of more than 
one leaf, or sepal. 
Pome. A pulpy fruit, containing a cap- 
sule, as the apple. 
Porov-s. Full of holes. 
Por'rected. Extended forward. 
Praniorse. Ending bluntly, as if bitten 
off I the same as abrupt. 
