XX11 GLOSSARY. 



Naturalized ; introduced but propagating itself freely by seed. 



Nectary ; an organ which secretes honey. 



Netted ; covered with lines connected together like network. 



Node ; a point in a stem where a leaf is produced ; a joining. 



Nut ; a hard dry 1-seeded superior pericarp ; also used for a 

 glans, a hard dry 1- or few-seeded inferior pericarp not 

 bursting and seated in a cup-like involucre, e. g. acorn. 



Ob ; in conjunction with terms means inverted; &s obouate is 



ovate with the attachment at the narrow end. 

 Oblong ; long oval, equally broad at each end. 

 Ocrea ; a tubular membranous stipule surrounding the stem. 

 Opaque ; not shining. 

 Opposite ; when two similar organs grow one on each side of 



some body ; or different organs are opposed to each other 



with a stem between them. 

 Orbicular nearly round and flat. 

 Oval ; an ellipse ; a figure rounded at each end, not broader at one 



end than at the other ; and about twice as long as broad. 

 Ovary ; the young seed-vessel. 

 Ovate ; egg-shaped ; a short flat figure (thin like a leaf) rather 



broader below the middle of its length. 

 Ovoid-, a solid eggshaped figure. 

 Ovule ; the young seed. 



Palate ; the prominent part of the base of the lower lip which 



closes the mouth of a ringent corolla. 

 Pales ; the leaflike parts of the flower of Grasses, enclosing the 



stamens, pistils, and hypogynous scales. 

 Palmate ; with lobes spreading like the fingers of a hand from 



the same point. 



Panicle ; a raceme with branching pedicels ; hence paniculate. 

 Papilionaceous ; like the flower of a Pea. 

 Papilla ; small elongated protuberances. 

 Papillose ; with small long protuberances. 

 Pappus-, the. crest of the fruit in Composites, formed of the 



altered limb of the calyx. 

 Parabolic ; starting from a broad base and gradually narrowing 



with curved sides to a blunt point, as the divisions of a 



calyx. 

 Parallel veins start several together from the base of a leaf, 



diverge slightly, then proceed parallel and simple, and 



converge at the apex. 



Parietal ; on the inner surface of an ovary. 

 Patent ; spreading widely. 

 Pedate ; palmate of three lobes with the lateral lobes having 



similar large lobes on their upper edge. 



