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-snaped. 

 Oblique : unequal-sided, 

 i Oblong: narrower than Elliptical, with 



nearly parallel margins. 

 Obovate: egg-shaped, with the narrow 



end downward. 

 Obtuse : blunt ; not pointed. 

 Ochrea, 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. 

 Orbicular: 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 linJ^of the calyx of com- 

 posite flowenlr 



Parallel-veined, 40. 



Parasitical : supported and nourished bv 

 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, 60. 



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. 



Perigynium : Flora, p. 532. 



Perigynous, 70. 



Persistent: remaining late, as opposed to 

 deciduoiis. 



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. 



Phasnogamous Plants, 106. 



Pilose : beset with stiff straight hairs. 



Pinnae : -the primary divisions of a pin- 

 nately compound leaf. 



Pinnate, 43. 



Pinnately divided, 43. 



Pinnules: the secondary divisions of a 



pinnately 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. 



Polymorphous: 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. 



Raceme, 55. 

 Rachis, 50. 



