156 



VOCABULARY. 



Pel'tate. 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. 



PeregrUnus. Foreign, wandering. 



Peren'nial. Lasting more than two 

 years. 



Perfo'liate. Having a stem running 

 through the leaf; differs from con- 

 nate in not consisting of two leaves. 



Per'forate. Having holes as if pricked 

 through; differs froinpunctate,which 

 has dots resembling holes. 



Pe'fi. Around. 



Per'ianth. (From peri, around, anthos, 

 flower.) A sort of calyx. 



Pericarp. (From peri, around, and kar- 

 pos, fruit.) A seed-vessel or whatever 

 contains the seed. 



Perid'ium. 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 feri, around, and 

 sperma, seed.) Around the seed. 

 Skin of the seed. 



Peristo'mium. The fringe or teeth 

 around the mouth of the capsule of 

 mosses, under the lid. 



Permarient. Any part of a plant is 

 SH 'd to be permanent when it remains 

 •v^nger than is usual for similar parts 

 in most plants. 



Persis'tent. Not falling off. See Per- 

 manent. 



Per'sonate. Masked or closed. 



Pe'lal. 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. 



Physiol'ogy. Derived from the Greek, 

 a knowledge of nature. 



PhytoVogy. The science which treats 

 of the organization of vegetables, 

 nearly synonymous with the physiolo- 

 gy of vegetables. 



Pi'leole. The outer covering of the 

 germmating leaves of monocotyle- 

 donous plants; that which formed 

 the primordial leaf. 



Pi'leus, The hat of a fungus. 



PilUi. See Columella and Column. 



Pilose. Hairy, with distinct, straight- 

 ish hairs. 



PUUi. A hair 



Pimpled. See Papillose. 



Pinna. A wing feather, applied to 



leafets. 

 Pinnnte. A leaf is pinnate when the 



leafets are arranged in two rows on 



the side of a common petiole, as in 



the rose. 

 Pinnat'ifid. 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 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. 

 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. 

 Plane. 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 legumes 



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 foi' 



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. 

 Polyan'drous. Having many stamens 



inserted upon the receptacle. 

 Polyceph'alous. See Monocephalous. 

 Polyg'amous. Having some flowefs 



which are perfect, and others With 



stamens only, or pistils only. 

 Polymor'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. 

 Pume. A pulpy fruit, containing a cap* 



sule, as the apple. 

 Porous. Full of holes. 

 Por'rected. Extended forward. 

 PrcEMorse. Ending bluntly, as if bitten 



off; the same as abrupt. 



