General All
species of
Galanthus are
perennial petaloid herbaceous bulbous (growing from
bulbs)
monocot plants. The
genus is characterised by the presence of two
leaves,
pendulous white
flowers with six free
perianth segments in two
whorls. The inner whorl is smaller than the outer whorl and has green markings.
Vegetative ; Leaves: These are basal, emerging from the bulb initially enclosed in a tubular membranous sheath of
cataphylls. Generally, these are two (sometimes three) in number and linear, strap-shaped, or
oblanceolate.
Vernation, the arrangement of the emerging leaves relative to each other, varies among species. These may be applanate (flat), supervolute (conduplicate), or explicative (pleated). In applanate vernation, the two leaf blades are pressed flat to each other within the bud and as they emerge; explicative leaves are also pressed flat against each other, but the edges of the leaves are folded back (externally recurved) or sometimes rolled; in supervolute plants, one leaf is tightly clasped around the other within the bud and generally remains at the point where the leaves emerge from the soil (for illustration, see Stearn and Davis). In the past, this feature has been used to distinguish between species and to determine the parentage of hybrids, but now has been shown to be
homoplasious, and not useful in this regard. The
scape (flowering stalk) is erect, leafless,
terete, or compressed.
Reproductive ;Inflorescence : At the top of the
scape is a pair of
bract-like
spathes (valves) usually fused down one side and joined by a papery membrane, appearing
monophyllous (single). From between the spathes emerges a solitary (rarely two), pendulous, nodding, bell-shaped white flower, held on a slender
pedicel. The flower bears six free
perianth segments (
tepals) rather than true
petals, arranged in two whorls of three, the outer whorl being larger and more convex than the inner whorl. The outer tepals are
acute to more or less
obtuse,
spathulate or oblanceolate to narrowly
obovate or linear, shortly clawed, and erect spreading. The inner tepals are much shorter (half to two thirds as long), oblong, spathulate or oblanceolate, somewhat
unguiculate (claw like); tapering to the base and erect. These tepals also bear green markings at the base, the apex, or both, that when at the apex, are bridge-shaped over the small
sinus (notch) at the tip of each tepal, which are
emarginate. Occasionally, the markings are either green-yellow, yellow, or absent, and the shape and size varies by species. ; Androecium : The six
stamens are inserted at the base of the perianth, and are very short (shorter than the inner perianth segments), the anthers basifixed (attached at their bases) with filaments much shorter than the anthers; they
dehisce (open) by terminal
pores or short slits. ; Gynoecium, fruit and seeds: The
inferior ovary is three-celled. The
style is slender and longer than the anthers; the
stigma is minutely
capitate. The ovary ripens into a three-celled
capsule fruit. This fruit is fleshy, ellipsoid or almost spherical, opening by three flaps, with seeds that are light brown to white and oblong with a small appendage or tail (
elaiosome) containing substances attractive to
ants, which distribute the seeds. The
chromosome number is 2n=24.
Floral formula: \star\; P_{3+3} \; A_{3+3} \; G_{\overline{(3)}} ==Distribution and habitat==