Glossary


Galea
Helmet- or hood-shaped.
The hood shaped trowel leaved orchid The hood shaped trowel leaved orchid
Galeate
Shaped like a helmet or hood.
Gametophyte
A plant that produces sperm and egg cells and in which sexual reproduction takes place - in ferns this is known as the prothallus
Gametophytes of the fern Blechnum procerum.
Gene pool
The mixture of all genes and gene variations of a group or population.
Genetic diversity
The variety of genes in a plants or populations.
Genetic variation
Differences displayed by individuals within a plant which may be favoured or eliminated by selection.
geniculate
abrubtly bent
The geniculate petiole of Entelea arborescens
Genus
A taxonomic rank of closely related forms that is further subdivided in to species (plural = genera). In a scientific name (e.g., Sicyos australis), the first word is the genus, the second the species.
Gibbous
Swollen or enlarged on one side, as in a gibbous moon.
Glabrescent
Lacking hair or a similar growth or tending to become hairless
Glabrous
Without or devoid of hairs, smooth.
The glabrous leaves of Poulzolzia australis
Gland
A structure that secretes a sticky or oily substance.
Glands on the leaf of Drosera auriculata.
Glandular
A structure that secretes a sticky or oily substance.
Glandular hairs of Drosera pelota Glandular hairs of Drosera pelota Glands on Metrosideros perforata
Glaucous
Covered with a fine, waxy, removable powder that imparts a white or bluish cast to the surface.
Bluish foliage of Dawsonia superb
Gley
A soil prone to seasonal inundation.
Globose
Globe-shaped.
Globe-shaped fruit of Coprosma rhamnoides
Glume
One of two bracts at the base of a grass spikelet.
Glumes of Carex secta Glumes of Uncinia uncinata
Groundwater
Groundwater is the water beneath the surface that can be collected with wells, tunnels, or drainage galleries, or that flows naturally to the earth's surface via seeps or springs. Groundwater is the water that is pumped by wells and flows out through springs.
Gymnosperm
Plants in the class Gymnospermae that have seeds which are not enclosed in an ovary.

Fruit of Podocarpus totara, a gymnosperm.
Gynodioecious
A species population containing plants that produce bisexual (perfect) flowers, and plants that produce only female (pistillate) flowers.
Gynoecium
The female reproductive organs of a flower; the pistil or pistils considered as a group. Means literally "womans house" i.e., the overall structure that contains the female sex organs

Member Login

Username: Password:

FAQs | Contact us | Desktop version