INTRODUCTION. 



Necklace-shaped: see Moniliform. 



Nectary : any honey-bearing part. 



Nerved (leaves), 40. 



Netted-veined, 40. 



Neutral (flowers): without stamens and 



pistils. 

 Nodding : turning outward or downward. 

 Nodes, 14. 

 Nodose ; knotty. 

 Nut, 96. 

 Nutlet : same as Achenium. 



Obcordate : inversely heart-shaped. 

 Oblanceolate : inversely lance-shaped. 

 Oblique : unequal-sided. 

 Oblong: narrower than Elliptical, with 



nearly parallel margins. 

 Obovate: egg-shaped, with the narrow 



end downward. 

 Obtuse : blunt ; not pointed. 

 Oohrea, 38. 



Octandrous : having eight stamens. 

 One-sided : borne one side of the axis. 

 Opaque: dull. 

 Opposite : placed directly against each 



other, as leaves on the stem; placed 



before, as stamens before the petals. 

 Orbjcnlar: circular. 

 Organs, 6. 

 Orthotropous, 83. 

 Oval : same as Elliptical. 

 Ovary, 76. 

 Ovate; egg-shaped. 

 Ovoid : a solid with an oval outline. 

 Ovule, 76. 



Palate : a prominence at the throat of 

 some bilabiate flowers. 



Palea: Flora, p. 545. 



Palmate: hand-shaped; when the lobes 

 or divisions spread from a common 

 centre. 



Palmately-veined, 41. 



Panicle, 59. 



Papery: of the texture of paper. 



Papilionaceous (flower) : Flora, p. 86 



Papillose : studded with minute wart-like 

 prominences. 



Pappus : the limb of the calyx of com- 

 posite flowers. 



Parallel-veined, 40. 



Parasitical : supported and nourished by 

 other plants. 



Parietal, 81. 



Parted : divided nearly to the base. 



Partial : pertaining to the parts of a com- 

 pound organ. 



Pectinate : cut into fine parallel lobes. 



Pedate : nearly as palmate, but with the 

 lateral lobes' divided. 



Pedicel. 50. 



Pedicelled : raised on a pedicel. 



Peduncle, 50. 



Peduncled : raised on a peduncle. 



Peltate : fixed to the stalk at a point 

 within the margins. 



Pendent: hanging, drooping. 



Pendulous : somewhat drooping. 



Penicillate: see Brush-shaped. 



Pentandrous : having five stamens. 



Pepo, 91. 



Perennial : lasting from year to year. 



Perfect Flowers, 66. 



Perfoliate: growing around the stem. 



Perianth, 65. 



Pericarp : the walls of the fruit. 



Perigyniura : Flora, p. 532. 



Perigynous, 70. 



Persistent : remaining late, as opposed to 



deciduous. 

 Personate : bearing a palate. 

 Petal, 64. 



Petaloid: petal-like; colored like a petal. 

 Petiole : the stalk of a leaf. 

 Petioled : borne on a petiole. 

 Petiolule : the stalk of a leaflet. 

 Petiolulate : raised on a petiolule. 

 Phaenogamous Plants, 106. 

 Pilose: beset with stiff straight hairs. 

 Pinnae : the primary divisions of a pin- 



nately compound leaf. 

 Pinnate, 43. 

 Pinnateiy divided, 43. 

 Pinnules: the secondary divisions of a 



pinnateiy compound leaf. 

 Pistil, 74. 

 Pith, 29. 



Pitted: marked with fine indentations. 

 Placenta, 81. 



Plaited, 68 ; folded lengthwise. 

 Plumose: feathery. 

 Plumule, 103. 

 Pollen, 71. 



Pollinia: the pollen-masses of the Milk- 

 weed. 

 Polyandrous : bearing many stamens. 

 Polypetalous and Polysepalous : applied 



to a corolla or calyx with separate 



petals or sepals. 

 Polvmorphous: of various forms. 

 Pome, 92. 

 Prickles : sharp and rigid appendages of 



the cuticle. 

 Prickly : beset with prickles. 

 Primine, 82. 



Prismatic : angular, with flat sides. 

 Process : a prominence or projection. 

 Procumbent : resting on the ground. 

 Produced : prolonged. 

 Proliferous: where a cluster of flowers 



arises out of another cluster. 

 Prostrate : see Procumbent. 

 Pubescence : hairiness in general. 

 Pubescent: hairy or downy. 

 Pulverulent: covered with fine powder. 

 Punctate: dotted. 



Pungent: ending in an abrupt hard point. 

 Pyramidal : pyramid-shaped. 

 Pyriform : pear-shaped. 



Quinate : bearing five leaflets. 



Eaceme, 65. 

 Rachis, SO. 



