


Ma sice 
bepiiatau 
Glossary 435 
Membranous—With the texture of a mem- 
brane; thin and more or less translucent. 
Mid-rib—Mid-vein—The middle or main 
rib of a leaf. 
Monadelphous—Stamens united by their 
filaments into one set. 
Monocotyledonous (embryo) — Having 
only one cotyledon. 
Monocotyledons—The great group of 
* plants having only | cotyledon. 
Monoicous—=Monoecious—With stamens 
and pistils in separate flowers on the 
same plant. 
Monopetalous (flower) ——Gamopetalous— 
With united petals. 
Mucronate—T ipped with an abrupt short 
point. 
Mucronulate—Diminutive of mucronate. 
Multi- —-Many. 
Nectariferous—Nectar-bearing. 

Nerve=Vein—A name for the ribs or 
veins of foliar organs, especially when 
simple and parallel. 
Node—tThe joints of a stem, from which 
the leaves arise. 
Nodose—Knotty or knobby. 
Nut—A hard and mostly one-seeded in- 
dehiscent fruit, as a chestnut, butternut, 
acorn. 
Nutlet—Diminutive of nut. 
Ob- —Upside down. 
Obcompressed—Flattened the opposite of 
the usual way. 
Obcordate—Heart-shaped with small end 
basal. 
Oblanceolate—Lance-shaped with the 
tapering point basal. 
Oblong—Two to three times as long as 
wide, and more or less elliptic. 
Obovate—Inversely ovate, the broad end 
up. 
Obtuse—Blunt or round at the end. 
Ochroleucous —- Yellowish - white; dull 
cream-color. 
Ocrea—A sheathing stipule. 
Odd-pinnate—Pinnate with an uneven 
number of leaflets. 
\Offset—Short branch next the ground 
which takes root. 
Opposite—Applied to leaves and branches 
when an opposing pair occurs at each 
node; to stamens when directly in front 
of the petals. 
Orbicular—Circular or nearly so in gen- 
eral outline. 
Oval—Broadly elliptical. 
Ovate—Shaped like the section of an egg 
with the broader end basal. 
Ovoid—A solid with an ovate section. 
Ovule—The body which becomes a seed 
after fertilization. 
Palate—A projection on the lower lip of 
a 2-lipped corolla closing the throat. 
Palet—The inner husk of grasses; the 
chaff or bracts on the receptacle of 
many Compositaceae. 
Palmate—Applied to a leaf whose leaflets 
or divisions or main ribs all spread from 
the apex of the petiole, like a hand 
with outspread fingers. 
Palmately lobed, cleft, parted, divided, 
etc.—The varying depths of division of 
a palmate leaf. 
Panicle (inflorescence) An open cluster 
like a raceme, but more or less com- 
pound. 
Panicled—Paniculate—In panicles, or 
panicle-like. 
Papilionaceous—Butterfly - shaped; —_ap- 
plied to such a corolla as that of the 
pea. 
Papilla (papillae)——A little nipple- 
shaped protuberance. 
Papillose—Covered with papillae. 
Pappus—The modified calyx-limb in 
Compositaceae, forming a crown of 
very various character at the summit 
of the akene. 
Parietal—Lateral—Attached to the 
walls, as of the ovary. 
Parted—Separated or cleft into parts al- 
most to base. 
Pectinate—Pinnatifid or pinnately divid- 
ed into narrow and close divisions, like 
the teeth of a comb. 
Pedicel—The stalk of each particular 
flower of a cluster. 
Pediceled—With a pedicel. 
Peduncle—A flower-stalk, whether of a 
single flower or of a flower-cluster. 
Peduncled—With a peduncle. 
Peltate—Shield-shaped; applied to a 
leaf, whatever its shape, when the pet- 
iole arises from the under surface. 

