53 



Plopocab'hum— A fruit composed of fol- 



Iieles ranged round an axis. Synonym 



for "Follioulus." For example see the 



liarkspur. 



Plum'beus— Lead-coloured ; dull grey, with 



metallic lustre. 

 Pluma'tcs— Synonym for "Piimatus.'' 

 PLUMOga', Plumo'sus— When hair U in- 

 vested with branches, arranged lik-; the 

 beard on a feather. 

 Pld'mule, Plu'mula— The portion of the 

 embryo which develo|iS in a contrary 

 direction to the radicle. It is the first 

 bud, or-germinalp, of the young plant. 

 Pld'ri signifieK "sever.al" in compounds. 

 Thus: Plueilo'oulak— Several celled. 

 Plump ARTi'TUs— Where an organ is 

 deeply divided into several nearly dis- 

 tinct portions. 

 Pneu'mato-chtmi'feeus — A term applied 

 to spiral vessels ; and Pneueato'ferus 

 has been restricted to the external 

 membranous tube of such vessels. 

 PooulIfob'mus— Cup-shaped. 

 Pon — Synonym for "Legume." 

 Podb'tia— The stalk; like elongations of 



the thallus of some lichens. 

 PoDOOAB'jptfs, Pod'ooaep— Where the ovary 

 is seated on a gynobasis, gynophore. 

 Podogt'ntom— Synonym for "Gyno- 

 phorus. " 

 PoDOOB'PHALUS— Where a head of flowers 



is elevated on a long peduncle. 

 Po'GON — Beard ; in Latin Barba. (See the 

 heath-like small shrub Leucoporjon 

 juniperimis, so common on forest 

 land, the flowers of which ate bearded 

 inside.) 

 PoLl'ina — Perfectly smooth and glossy or 

 polished, as the testa of many seeds. 

 - Pol'len — Utricular grains, formed within 

 the anther, either free and resembling 

 dust, or variously agglutinated into 

 waxy masses. The "granules" are 

 very minute particles within the pollen 

 grains; and the "poUentube" is a 

 membranous exteijeion of a coat of the 

 grain, developed when this is-subjected 

 to the influence of the stigma. Pollen- 

 mass — An agglutinated mass of pollen, 

 peculiar to the state in which it occurs 

 in some orders ; as in OrchideiE and 

 Asclepiadese. Pollina'p.is, Polltno'- 

 sus — As if dusted with poUen. PoLn'- 

 Nicus — Comjiosed of or bearing some 

 relation to pollen. 

 Pol'lex, Pollioa'kis — A thumb's breadth, 



about an inch long. 

 PoiiLi'NiA — ^^Term used to designate the 

 pollen-masses in Orchidese. (See the 

 genus Dendrohium, which has 4, or 

 Jiria, which has 8 of these masses in 

 each flower. ) 

 PoI'y — Many, or an indefinite number, in 

 composition. Thus : Poltadbl'phia — 

 Plants whose stamens cohere into more 

 than two distinct groups or bundles. 

 Poltan'dba — Flowers with more than 

 twelve stamens ; or flov.'ers are called 

 Polyan'drous wh'-n the stamens are free 

 • and numerous. Polyan'thds — Bearing 

 many flowers. X'on'CAR'pions, Poly- 

 OAJi'PUS — Wiiere the carpels, being dis- 

 tinct and numerous, each flower bears 



several _ fruits. Used synonymously 

 with either perennial or arbbresoent 

 Xjlants, which, lasting many years, 

 reproduce their fruits many times, in 

 contradistinction to " Monooarpous," 

 PoircE'pHALDS— Having many hestds. 

 Polyola'dia — Many branches. PoLY- 

 coc'ous — A fruit composed of many 

 oocca. Polygy'nous — Having many 

 distinct pi.«tils, or an avary with many 

 distinct atylas. 



Polyg'amous — V/hen there are male, 

 female, and hermaphrodite flowers on 

 the same or on distinct plants. 



PoLTPET'ALa)— (1st sub-class of Diootyle- 

 dons. Petals distinct, wanting in a 

 few genera., very rarely united). 



Pome, Po'mhm— A fleshy multilocular fruit, 

 matured from an inferior ovary^ the 

 seeds enclosed in dry cells, with a bony 

 or cartilaginous lining. The Apple is 

 an example. 



Pomeeidia'nus — Applied to flowers which 

 expand after noon. 



POMiF'BRtrs — Bearing fruit or excrescences, 

 shaped like an apple. PoMifoe'mis — 

 Approaching the shape of an apple. 

 Pohol'oqy, TPomolo'gia — A treatise oh 

 fruits. 



Poeen'ohyma— Cellular tissue, elongated 

 and apparently perforated by pores. 



POEO'sus— Where the tissue is, or appears 

 to be, full of small holes. Poe'ulus — 

 The diminutive from "Porus."' POBUS, 

 and pi. PoEi — Arainate superficial 

 hole. Synonym for " Stoma," and for 

 " Asous " of some Fungi. 



PoEphY'eeds — Synonym for "Purj)ureus." 

 (See the bracts of JPorphyroconta, a 

 plant not uncommon in bush-houses). 



PosTl'ons— Behind. Sylionym for " Ex- 

 trorsus." The words posterior, back, 

 and anterior, front, are often used for 

 upper and lower respectively, but their 

 meaning is sometimes reversed if the 

 viriter supposes himself in the centre of 

 the flower instead of outside it. 



Pota'me.e — Synonym for "Fluviales." 



Pous or Pus, Podos — A foot. As in Podo- 

 carpus and Lycopodium. 



Pbje'oox — Appearing or flov.ering earlier 

 than other allied specieSi Precius — • 

 Ripening before others ; .synonym for 

 " Praecox." 



Pezeploea'tion and PUjEEOliatioK — Terms 

 used synonymously for " .(Estivatioti " 

 and " Vernation," but are seldom used 

 in descriptive botany. 



Pb^moese', Pe^MoE'sus — Bitten off, end- 

 ing abruptly ; as where roots, or more 

 frequently rhizomata (called roots), 

 have decayed at the and. Also where 

 the truncate termination of any folia- 

 ceous lamina appears jagged. (See 

 pinnie of Garyota urens. ) 



PEa;No'MiN— The first name ; synonym for 

 ' ' Generic. " 



PBiBUS'Tua — Burnt at the point, of a brown 

 tint, as though it had bean produced 

 by burniiig. 



Pea'sinus — Leek-green. Pure green, with 

 a slight admixture of grey. 



