labellar
Pertaining to the labellum: a lip; in orchid flowers referring to the middle petal which usually differs in size, shape or ornamentation from the two lateral petals.
labellum
A lip; in orchid flowers referring to the highly modified middle petal which usually differs in size, shape or ornamentation from the two lateral petals.
lacinia
A jagged lobe.
laciniae
Jagged lobes.
laciniate
Cut into narrow, irregular lobes or segments.
lacustrine
Of or having to do with a lake, of, relating to, or formed in lakes, growing or living in lakes.
lamina
The expanded flattened portion or blade of a leaf, fern frond or petal.
lanceolate
Lance-shaped; of a leaf several times longer than wide with greatest width about one third from the base, tapering gradually to apex and more rapidly to base.
lateral
On or at the side.
lax
With parts open and spreading, not compact.
laxly
With parts open and spreading, not compact.
leaflet
One section of a compound leaf.
lemma
The lower of two bracts enclosing the flower in grasses.
lenticillate
Bark that is covered in fine lenticles (breathing pores).
ligulate
Strap–like, tongue–shaped.
ligule
The membrane between the leaf and the stem of a grass; the “petal” of a ray floret in a composite inflorescence.
linear
Long and narrow with more or less parallel sides.
littoral
Occurring at the border of land and sea (or lake). On or pertaining to the shore. The shallow sunlit waters near the shore to the depth at which rooted plants stop growing.
lobe
A recognisable, but not separated, rounded division or segment of a leaf or pinna. Used to describe ferns and leaves in Cotula and Leptinella.
lobule
A small lobe or sub-division of a lobe.
lustrous
Glossy, shiny.
lyrate
Pinnatifid or pinnatisect terminal lobe much larger than lower lobes.
lycophytes
Seedless vascular plants that belong to the phylum Lycophyta (characterised by microphylls -primitive leaves found in ancient plants).
lobed
Part of a leaf (or other organ), often rounded, formed by incisions to about halfway to the midrib.
