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Glossary of 'Terms. 



Phyllum, in composition, a leaf. 



Pinnate. A compound leaf having a 

 single row of leaflets on each side of 

 the petiole. 



Pmnatiftd. A simple leaf divided 

 nearly to the midrib, that is to say, 

 almost pinnate. 



Pinnules. The primary divisions of a 

 pinnate frond. 



Pistil. The female organs of a flower, 

 collectively : ovary, style, and stigma, 



Placenta. The process or body which 

 bears the ovules. 



Plaited (plicate). Folded in the manner 

 of a closed fan. 



Plumose. Feathery. 



Plumule. The first or embryonic bud. 



Pollen. The powdery substance con- 

 tained in the anthers, which serves 

 to fertilize the ovules. 



Polycarpic. Fruiting more than once. 



Polygamous. A term applied to those 

 plants having male, female, and her- 

 maphrodite flowers intermixed on 

 the same individual. 



Prcscox. Flowering early. 



Pratensis. Growing in meadows. 



Procumbent. Lying on the ground. 



Piilvcrulcntus. Covered with a pow- 

 dery substance. 



Pumilus. Short and dense in habit. 



Put amen. The hard part or shell of 

 stone-fruit, like the Almond. 



Raceme. A kind of inflorescence in 

 which the pedicellate flowers are ar- 

 ranged singly on a common peduncle. 

 Ex. Kibes, Wallflower. 



Rachis. The divisions of the petiole of 

 a frond. 



Radical. Proceeding from the root. 



Radicle. The first root of a young 

 plant. 



Ramosus. Much-branched. 



Receptacle. The part bearing the florets 

 in the Composite, or the parts of the 

 flower of any plant ; but torus is the 

 word now generally employed to de- 

 signate the latter. 



Rcflcxed. Turned backwards. 



Regular. All the parts of each series 

 of a flower alike. 



Reniform. Kidney-shaped in outline. 



Repens. Creeping. 



Reticulate. Net-veined. 



Rhizome. A creeping underground 

 stem. 



Riparius. Growing ott the banks of 

 streams or lakes. 



Rosulate. Disposed in the form of a 

 rosette. 



Rotate. In the form of a wheel. 



Ruber. Ked of any tint. 



Ruderalis. Growing amongst rubbish. 



Rugose. Wrinkled. 



Rapcstris, Growing on rocks. 



Sabulosus. Growing in sandy places. 



Sagittate. Shaped in the form of an 

 arrow-head. 



Samara. Applied to such winged in- 

 dehiscent fruits as the Sycamore. 



Saxatilis. Growing on rocks or stones. 



Scaber, scabrid. Kough to the touch. 



Scandcns, Climbing. 



Scape. A radical, usually naked 

 flower-stalk. 



Scarious. Thin, dry and membranous. 



Scorpioid'. Rolled up, as the inflores- 

 cence of many Borragineae. 



Secund. Having all the flowers or 

 leaves turned in the same direction. 



Semi, as a prefix, denotes half, partial, 

 or one-sided. 



Semper virens. Evergreen . 



Septum. The partition of an ovary or 

 fruit. 



Septicidal (dehiscencc}. Separating 

 through the dissepiments. 



Sericeus. Silky. 



Scrotimis. Late . 



Serrate. Saw-toothed. 



Sessile. Stalkless. 



S( taceus. Bristly. 



Sinuate. Having an uneven wavy mar- 

 gin. 



Sinus. The recesses of a lobed organ. 



Spadix. A flower-spike usually en- 

 closed in a spathe. 



Spathe. A large leafy bract enclosing 

 the inflorescence of most of the 

 Aroideae. 



Spathulate. Oblong, tapering down- 

 wards in a long narrow stalk. 



