XXxiv BOTANICAL TERMS AND DEFINITIONS. 
Naked, (Nudus) applied to flowers having no calyxes •, also to 
stems without leaves; and to leaves when perfectly smooth, 
and destitute of all kinds of hairiness. 
Nectary, {Nectarium) The nectary may be defined, that part of a 
flower which secretes and contains the honey, (an almost 
universal fluid in flowers) and is either a part of the corolla, 
or an organ distinct from it and variously formed, (as the 
nectaries of the monkshood, black hellebore, &c.); or a 
tubular elongation of the calyx, or of a petal, as in the 
Delphinium tribe of plants ; or an assemblage of glands, 
&c. In monopetalous flowers, the honey is contained in 
the tube which probably secretes it.* 
Nervosum, vide Ribbed.. 
Nicked, vide Emakginate. 
Notched, vide Crenate. 
Nudus, vide Naked. 
Nut, (Nux) a hard shell enclosing a kernel, which when enclosed in 
a pulpy covering forms the pericarp named drupe, already 
described. 
Oblique, or Tm^isted, (Obliquum) applied to the position of 
leaves, and implies that one part of the leaf is horizontal 
and the other vertical. 
Oblong, {O'blongum) applied to leaves several times longer than 
broad; an oblong leaf is not precisely of one form, but 
varies in length, breadth, &c. The term oblong is chiefly 
used to discriminate a leaf whose form does not accu- 
rately come under the denominations, oval, linear, round, 
&c. 
Obovate, (Obovatum) applied to leaves having the form of an egg 
cut lengthwise, with the broader end uppermost and form- 
ing the extremity of the leaf. 
Ovate, or Egg-shaped, (Ovatum) applied to leaves having the 
form of an egg, with the broad end forming the base and 
the pointed the extremity of the leaf ; applied also to seeds 
shaped like an egg. 
Obtusum, vide Blunt. 
Oval, vide Elliptical. 
* The secretion of honey is not exclusively confined to the flower : in some of the 
liliaceous tribe of plants it exudes from the flovver-sfalk, and in the passion flower it 
is secreted by glands situated in the peduncle. 
