330 



GLOSSARY. 



pSud'eiit, or pSn'dulous, supported from 

 above; suspended; hanging; drooping. 



pen i cSriate, jurnished with a pencil of fine 

 hairs ; ending in a tuft of hairs. 



pen'uate, pinnate ; having several leaflets 

 arranged on each side of a common petiole. 



pen'ni nerved, feather -veined. 



pen tSm'er ous, five-par ted ; having the parts 

 in fives. 



pen tan'drous, having five stamens. 



perSn'ni al, living several years. 



per'fect flow'er, a flower having both sta- 

 mens and pistils. 



per fo'li ate, having the basal part produced 

 around the stem. 



per'fo rate, pierced ivith holes or transparent 

 dots resembling holes, as an Orange leaf. 



pgr'ianth, calyx or corolla, or both; the 

 leafy parts of a flower surrounding the 

 stamens and pistils. 



pSr'i carp, the ripened ovary ; the covering 

 of the seed. 



per i car'pic, belonging to the pericarp. 



pgr'i gone, or per i go'ui um, an organ inclos- 

 ing the essential organs of a flower ; a 

 perianth. 



per i gyn'i um, the bristles, scales, or more 

 or less inflated sack which surroimds the 

 pistil, as in Carex. 



pe rig'y nous, surrounding the pistil ; hav- 

 ing a tubular ring or sheath surrounding 

 the pistil, on which the various parts of 

 the flower are inserted. 



per i pher'ic, around the outside or periphery 

 of any organ. 



pSr'i sperm, the albumen of a seed, especicdly 

 that part for nied outside the embryo sac. 



pgr'i stome, the fringe of teeth to the spore 

 case of mosses. 



persTst'ent, remaining long in place. 



per'son ate, masked by a closing of the throat 

 of the corolla, as in the Snapdragon. 



per tuse', punched ; pierced with holes ; slit. 



pgr'u la, a scale of a leaf bud. 



pSr'u \9,te, furnished with scales. 



pgt'al, one of the leafy expansions of the 

 corolla. 



petSl'ody, metamorphosis of .stamens or 

 pistils info petals, as in double floicers. 



pSt'al oid, pertaining to a petal ; resembling 

 a petal. 



pet'i late, having a stalk or petiole. 



pet'i ole, a leaf-stalk ; foot-stalk of a leaf 

 connecting the leaf with the stem. 



pet i 31'u late, supported by its own petiohile. 



pet'i o lule, a small petiole, or the petiole of 

 a leaflet. 



plise no ga''mi a, or phan e ro ga'mi a, name of 

 that division of the vegetable kingdom 

 rvhich bears visible floivers. 



pha'lanx ( pi. pha ISn'ges), a group or bun- 

 dle of stamens. i 



phy col'o gy, the science of Algce, or sea- 

 weeds. \ 



phyl lo cla'di um, a flattened stem or branch 

 which more or less resembles a leaf, and 

 performs the functions of a leaf. 



phyl lo'di um, a petiole dilated into the form 

 of a blade. 



phyl'lome, a foliar part of a plant ; an or- 

 gan homologous with a. leaf, or produced 

 by the metamorphosis of a leaf. 



phyl'lotaxy, the order or arrangement of 

 leaves on a stem. 



phys i log'i cal bot'an y, that division of the 

 science of botany which treats of the func- 

 tions of plants. 



phy tog 'ra phy, the .science of describing 

 plants in a systematic manner. 



phy tol'o gy, an account of the composition 

 of plant organs and the substances that 

 compose them. 



pi 'le us, the expanded upper portion of many 

 of the fungi. 



pi lifer ous, bearing a slender bristle or 

 hair ; beset icith hairs. 



pi lose', covered with long slender hairs. 



pTu'na, a primary division, ivith its leaflets, 

 of a bipinnate or tripinnate leaf. 



pTn'nate, composed of several leaflets, or 

 separate portions, arranged on each side 

 of a CO mm 071 petiole. 



pTn'nate ly lobed, lobed in a pinnate manner. 



pin nat'i fid, divided in a pinnate manner, 

 the divisions not reaching to the midrib. 



pin nat'i sect, p innately divided to the midrib. 



pin'nule, one of the small divisi07is of a de- 

 compound frond or leaf. 



pi 'si form, resembling a pea in size or shape. 



pis'til, organ of a flower, made up of ovary, 

 style, and stigma, or ovary and stigma. 



pis'til late, having a pistil or pistils, — usu- 

 ally said of flowers having a pistil but no 

 stamens. 



pis til lid 'i um, archegonium ; the organ in 

 mosses ivhich is analogous to a j)istil in 

 floicering plants. 



pitch'er, a tubidar or cup-like appendage 

 or expansion of the leaves of certain 

 plants. 



pith, the soft tissue in the center of the stems 

 of dicotyledonous plants. 



pTt'ted, having depressions or excavations. 



pit'ted cells, cells tvith spots or depressions 

 on their ivalls. 



plaQen'ta. the part of a pistil or fruit to 

 ivhich the ovules or seeds are attached. 



pla Qen'ti form, having the shape of a circu- 

 lar thickened disk, somewhat thinner about 

 the middle. 



plait'ed, folded ; doubled over. 



plSnt, an organized body possessing vitality 

 but not sensation. 



plant growth, the manner in ivhich a plant 

 is built up. 



plat y phyl'lous, broad-leaved. 



plei oph'yl lous, having several leaves. 



pli'cate, plaited like a fan ; folded. 



