GLOSSARY 209 
Funiculus. Stalk of a seed or 
ovule. 
Gamopetalous. With petals 
united at the base (13). 
Gamosepalous. Calyx of united 
sepals (13). 
Gibbous. Swollen on one side. 
Glabrate. Becoming smooth in 
age. 
Glabrous. Without hair on the 
surface. 
Gland. A _ secreting organ or ~- 
small protuberance. 
Glaucous. Surface covered with 
powder or bloom, 
Glume. Bracts of a grass spike- 
let. 
Hastate. Shaped like an arrow 
head. 
Head. A compact cluster of 
sessile flowers. 
Herb. Plants without woody 
stems and dying to the ground 
each year (26). 
Herbaceous. Likeanherb. Leaf- 
like in color and texture. 
Hilum. Point of attachment of 
a seed. 
Hirsute. With coarse, stiff hairs. 
Hispid. With bristly hairs. 
Hyaline. Transparent or trans- 
lucent, not green. 
Hypanthium. Outgrowth of the 
receptacle to which stamens 
and perianth are attached 
(16). 
Hypogynous. With calyx and 
corolla attached below the 
ovary. 
Imbricated. Overlapping each 
other like shingles. 
Imperfect. Having only sta- 
mens or pistils, not both (11). 
Indehiseent. Of fruits, not open- 
ing to discharge seeds (20). 
Indurated. Hardened. 
Inferior ovary. Ovary with the 
perianth attached to the ad- 
nate hypanthium above it 
(16). 
Inflorescence. Arrangement of 
flowers or a flower cluster. 
Internode. Part of a stem be- 
tween nodes. 
Involucre. Whorl of bracts at 
the base of a flower cluster. 
Bracts, bristles, etc., accom- 
panying flowers, spikelets or 
fruits (235): 
Involucel. Secondary involucre 
on branches of a flower clus- 
ter (23). A small involucre. 
Irregular. Of flowers, with dif- 
ferent members of one or 
more whorls differing in size 
or shape. 
Keel. Ridge on the back of 
scales in a spikelet. Lower 
united petals of the flower 
of the pea family. 
Laciniate. Divided into numer- 
ous narrow lobes or segments. 
Lanceolate. Narrow leaf taper- 
ing to a point at the apex. 
Legume. A simp!e fruit split- 
ting along both sutures. 
Ligulate. With a strap-shaped 
corolla as the rays of some 
composites. 
Ligule. Appendage at the junc- 
tion of blade and sheath of 
leaves of some monocotyle- 
dons as the grasses. 
Lemna. Bract of a grass spike- 
let subtending the flower. 
Limb. The expanded part of a 
petal or corolla. 
Linear. Long, narrow’ with 
nearly parallel edges, 
Loment. Fruits in the pea fam- 
ily that are constricted be- 
tween the seeds and break up 
into one-seeded indehiscent 
joints at maturity. 
Leculicidal. Dehiscent at the 
middle of the cells of a cap- 
sule (20). 
