GLOSSAKT. 223 



Needle-shaped: long, slender, and rigid, like the leaves of Pines; p. 68, fig. 140. 

 Nerve: « name for the ribs or veins of leaves, when simple and parallel ; p. 56. 

 Nerved : famished with nerves, or simple and parallel ribs or veins ; p. 56, fig. 84. 

 Netted-oeined : furnished with branching veins forming network; p. 56, fig. 83. 

 Nodding {in Latin form, Nutanl) : bonding so that the summit hangs downwai'd. 

 Node : a knot ; the "joints " of a stem, or the part whence a leaf or a pair of 



leaves springs ; p. 40. 

 Nddose : knotty or knobby. Ndduhse : furnished with little knobs or knots. 

 Normal : according to rule ; the pattern or natural way according to some law. 

 Notate : marked with spots or lines of a different color. 

 Nucajnentaceous : relating to or resembling a small nut. 

 Nudform : nut-shaped or nut-like. Nucule : a small nut. 

 Nucleus: the kernel of an ovule (p. 122) or seed (p. 136) of a cell; p. 140. 

 Nut: a hard, mostly one-seeded indehiscent fruit; as a chestnut, butternut. 



acorn; p. 130, fig. 299. 

 Nutlet : a little nut ; or the stone of a drupe. 



Ob- (meaning over agkinst) : when prefixed to words, signifies inversion ; as, 



Obcompressed : flattened the opposite of the usual way. 



Obcdrdate : heart-shaped with the broad and notched end at the apex instead of 



the base ; p. 60, fig. 109. 

 Obldnceolate : lance-shaped with the tapering point downwards ; p. 58, fig. 91. 

 Oblique : applied to leaves, &c. means unequal-sided. 

 Oblong : from two to four times as long as broad, and more or less elliptical 



in outline ; p. 58, fig. 87. 

 Obdvate: inversely ovate, the broad end upward ; p. 58, fig. 93. 

 Obtuse: blunt, or round at the end ; p. 60, fig. 105. 

 Obverse : same as inverse. 

 Obvdute (in the bud) : when the margins of one leaf alternately overlap those of 



the opposite one. 

 Ochreate : furnished with ochrece (boots), or stipules in the form of sheaths ; as 



in Polygonum, p. 69, fig. 137. 

 Ochroleilcous: yellowish-white; dull cream-color. 

 Octo-, eight, enters into the composition of 

 Octdgi/nous : with eight pistils or styles. 



Ocldmerous : its parts in eights. Octdndrous : with eight stamens, &c. 

 Offset: short branches next the ground which take root ; p. 38. 

 One-ribbed, One-nerved, &c. ; furnished with only a single rib, &c., &c. 

 Opaque, applied to a surface, means dull, not shining. 



Op€rculate: furnished with a lid or cover (operculum), as the capsules of Mosses. 

 Opposite : said of leaves and branches when on opposite sides of the stem from 



each other (i. c. in pairs) ; p. 23, 71. Stamens are opposite the petals, &c. 



when they stand before them. 

 Orbicular, Orbiculute : circular in outline or nearly so ; p. 58. 

 Organ : any member of the plant, as a leaf, a stamen, &c. ; p. 1. 

 Organs of Vegetation, p. 7 ; of Reproduction, p. 77. 

 Organized, Organic: p. I, 158, 159, 162. 

 Organic Constituents, p. 160. Organic Structure, p. 142. 



