210 APPENDIX 
Ledicules. Organs at the base 
of the grass flower which by 
swelling spread the scale and 
palet apart at anthesis, per- 
haps rudiments of the peri- 
anth. 
Monadelphous. United in one 
group or cluster (13). 
Moneecious. With staminate and 
pistillate flowers on the same 
plant (12). 
Mesophyte. Growing where it 
is neither excessively wet nor 
dry. 
Mucronate. Ending in a short, 
sharp point. 
Nectary. Organ which secretes 
nectar, the sweet fluid col- 
lected by bees and other in- 
sects. Often used for organ 
where nectar is stored. 
Nerve. The fibrovascular bun- 
dles of leaves or bracts. 
Neutral. Without functional 
pistils or stamens (11). 
Net-veined. Veins forming an 
evident net-work, as opposed 
to parallel veined where the 
cross-connections are not evi- 
dent. 
Node. Points on a stem where 
leaves are borne. 
Nut. A one seeded indehiscent 
fruit with a bony pericarp. 
Nutlet. A small nut, differs 
from an achene in the thicker, 
harder shell. 
Ocreae. Stipules which are united 
into a tube around the stem. 
Ovary. Lower enlarged part of 
a pistil in which the ovules 
are found (7). 
Ovule. Organs in the ovary from 
which the seeds develope (7). 
Palet. Palea. The inner, usu- 
ally smaller and two-keeled, 
of the scales which enclose 
the grass flower (24). 
Palmate. With lobes or veins 
that diverge from the end of 
the petiole. 
Panicle. A loose compound in- 
florescence with _ pediceled 
flowers or spikelets. 
Pappus. The modified calyx of 
the composites consisting of 
scales, bristles, awns or plu- 
mose hairs. 
Parietal. Borne on or pertain- 
ing to the wall of the ovary. 
A placenta not basal or cen- 
tral. 
Pedicel. Stalk of a single flow- 
er in a flower cluster. 
Peduncle. Stalk of a single 
flower or of a flower cluster. 
Peltate. Leaf in which the petiole 
is attached to the lower sur- 
face not at the edge of the 
blade. 
Perennial. Growing for several 
years. In herbaceous peren- 
nials the stem and roots are 
usually renewed each year, 
only a small part as a bud 
may survive the winter. 
Perfect. Flowers with both sta-* 
mens and pistils (11). 
Perfoliate. Having the base of 
the leaf surround the stem so 
as to appear to be pierced 
by it. 
Perianth. The floral leaves col- 
lectively (9). 
Pericarp. Part of a fruit de- 
rived from the wall of the 
ovary (19). 
Perigynium. A _ sac-like bract 
which encloses the ovary and 
achene in Carex. 
Perigynous. Borne on dise or 
cup of torus so as to be around 
not at the base of the ovary. 
Petal. A member of the inner — 
whorl of the perianth (9). 
Petaloid. Of the color or tex- 
ture of a petal. 
Petiole. Stalk of a leaf, want- 
ing in sessile leaves (21). 
Pilese. With soft hairs. 
