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New leaf or frond development in botany
Vernation or leafing is the formation of new leaves or fronds. In plant anatomy, it is the arrangement of leaves in a bud. The term vernation is borrowed
Vernation
Genus of flowering plants
subgroups, usually on the basis of the pattern of the emerging leaves (vernation). In the era of molecular phylogenetics this characteristic has been shown
Galanthus
Positional arrangement of the parts of a flower within a flower bud before it has opened
referred to as praefoliation or prefoliation, but these terms may also mean vernation: the arrangement of leaves within a vegetative bud. Aestivation can be
Aestivation_(botany)
Fronds of a young fern
on the plant, each fiddlehead would unroll into a new frond (circinate vernation). As fiddleheads are harvested early in the season, before the frond has
Fiddlehead
Species of flowering plant
35–89 cm long. The leaves exhibit a scalariforme venation and supervolute vernation. Covering the leaves are tiny black glandular punctuates. The berries
Anthurium_hookeri
leaves are initially folded in the bud, but later unrolls it is called vernation, ptyxis is the folding of an individual leaf in a bud. The Latin word
Glossary_of_leaf_morphology
Species of carnivorous plant
this plant unroll in spirals – an arrangement similar to the circinate vernation seen in ferns. D. filiformis occurs naturally in both Canada and the United
Drosera_filiformis
Photosynthetic part of a vascular plant
a device that measures the moisture level in plant leaves Leaf shape Vernation – sprouting of leaves, also the arrangement of leaves in the bud Musical
Leaf
Genus of flowering plants
distinguishable for its involute vernation (leaf growth); comparatively, Cryptocoryne tends to exhibit convolute vernation. Helophytes, rarely rheophytes
Lagenandra
sepals and petals or their lobes in an unexpanded flower bud. Contrast vernation. aff. (affinis) With affinity to others, akin to; often used for a provisionally
Glossary_of_botanical_terms
Species of plant
berry. This plant is unusual for a flowering plant in having circinate vernation (leaves unfolding in the manner of a fern). Stevens, W.D., Ulloa U., C
Anthurium_salvinii
Species of South African carnivorous plant
including woody rhizomes, operculate pollen, and the lack of circinate vernation in scape growth. All of these factors, combined with molecular data from
Drosera_regia
Class of vascular plants
fiddlehead into fronds. This uncurling of the leaf is termed circinate vernation. In some families, such as the Blechnaceae, the leaves are divided into
Fern
Almond-shaped aureola (frame)
flowers, which are the first flowers to bloom after Winter, even before vernation of the leaves of the tree. The symbolism of the nine-branched Chanukkiyah
Mandorla
Study of flower structures
separated from each other that the vernation cannot be determined. There are six main types of vernation. In valvar vernation, the flower pieces may touch each
Floral_morphology
Species of fern in the spleenwort family
light green, often crinkled, with a black midrib, and exhibit circinate vernation. Spores develop in sori on the underside of the fronds. These sori form
Asplenium_nidus
Species of evergreen plant
almost its whole length. The emerging leaves are hairy and show involute vernation; and the young leaves have a distinct bluish tint, which distinguishes
Cycas_thouarsii
Topics referred to by the same term
arrangement of veins in insect wings All pages with titles containing Venation Vernation, the arrangement of leaves in a bud This disambiguation page lists articles
Venation
Extinct genus of spore-bearing plants
indeterminate growth, with fertile branches generally showing circinate vernation (initially curled up). Taylor, T.N.; Taylor, E.L. & Krings, M. (2009)
Konioria
Observance in a liturgical calendar with no fixed calendar date
calendars most likely being observational and based on natural cycles like vernation and ripening. The traditional Chinese calendar is lunisolar, as are others
Moveable_feast
Subfamily of flowering plants
at apertural region, a base chromosome number of 8, and a plicate leaf vernation pattern. Several characters, including glabrous receptacle of staminate
Coryloideae
Genus of flowering plants
simple, elliptical, up to 15 cm long, with a serrate to serrulate margin. Vernation lines parallel to the midvein are often visible - a very unusual characteristic
Couratari
Collection of leaflets on a plant
fronds are initially coiled into a fiddle-head or crozier (see circinate vernation), although cycad and palm fronds do not have this pattern of new leaf
Frond
the way in which an individual leaf is folded within an unopened bud. Vernation – the arrangement of leaves in an unopened bud. Plants, with regard to
Glossary_of_plant_morphology
Topics referred to by the same term
(geology), a property of certain rocks A pagination system in book production Vernation, the growth and arrangement of leaves Foliate, a botanical term meaning
Foliation_(disambiguation)
iconoclasm. He was imprisoned and exiled, returning to Lesbos only after the vernation of icons was restored in 842. The bishop George of Mytilene, who may have
Persecution_of_Christians
Group of extinct land plants
dichotomously, and grew at the ends by unrolling, a process known as circinate vernation. The stems had a central vascular column in which the protoxylem was exarch
Zosterophyll
North American species of fern
and they do not unfold as fiddleheads like typical ferns (noncircinate vernation). The leaves, including the stalk, are 7 to 30 centimeters (3 to 10 in)
Myriopteris_fendleri
Order of ferns
entire (undivided) fronds. The fronds of tree ferns also exhibit circinate vernation, meaning the young fronds emerge in coils that uncurl as they grow.[citation
Cyatheales
Species of flowering plant
with slightly emarginated apex, linear scars caused by prefoliation/vernation. The top of the leaf is shiny and the bottom is covered by indumentum
Magnolia_guatapensis
Genus of carnivorous plants
characteristic of coiling 'outward' when immature (outward circinate vernation). Seed germination may be aided by scarification. Drosophyllum lusitanicum
Drosophyllum
Genus of aquatic plants
of Cryptocoryne species exhibit convolute vernation whereas Lagenandra species exhibit involute vernation.[citation needed] The name Cryptocoryne is
Cryptocoryne
Extinct order of spore-bearing plants
branched dichotomously, and grew at the ends by unrolling (circinate vernation). Some had smooth stems, others were covered in small spines; fungal bodies
Sawdoniales
Family of flowering plants
kerrii), this shape common in young, vernal leaves in other species, vernation folded, with the petiole usually sheathed, enclosing the axillary bud
Platanaceae
Extinct genus of spore-bearing plants
indeterminate growth, with fertile branches generally showing circinate vernation (initially curled up). Kenrick and Crane in 1997 also placed the genus
Oricilla
Family of flowering plants
parallel venation, brochidodromous or reduced to a single prominent vane, vernation normally conduplicate; anisophylly often occurs during the different growth
Proteaceae
Family of flowering plants
is woody and the base of the foliole is pulvinulate, lacking stipules, vernation conduplicate, often dotted with red glands. Stomata anomocytic or paracytic
Sabiaceae
Western North American species of moonwort
(triangular), thickly leathery, twice pinnate, with apex bent down in vernation, 2–4 cm, 1-1½ in, long and 1½-4 cm, ½-1½ in, broad; ternate, the middle
Botrychium_pumicola
Extinct genus of spore-bearing plants
indeterminate growth, with fertile branches generally showing circinate vernation (initially curled up). Other species, such as Z. myretonianum, were not
Zosterophyllum
Species of flowering plant
length of the blade. Emerging leaves are rolled in the bud (convolute vernation). Note that most grasses are folded not rolled, which make this a key
Lolium_arundinaceum
Extinct genus of spore-bearing plants
indeterminate growth, with fertile branches generally showing circinate vernation (initially curled up). Kenrick and Crane in 1997 placed the genus in the
Crenaticaulis
Species of fern
centimeters (3.1 in) or more). They emerge as fiddleheads (circinate vernation). The stipe (the stalk of the leaf below the blade) is 1.5 to 8 centimeters
Myriopteris_cooperae
Species of carnivorous plant
lamina, although in some growth forms it may be significantly longer. Vernation is geniculate-involute, the lamina first unfolding from the petiole, and
Drosera_capensis
Species of aquatic plant
grass-like stipe remaining. However, this plant retains the circinate vernation characteristic of most ferns.[citation needed] The range of the American
Pilularia_americana
Extinct genus of spore-bearing plants
indeterminate growth, with fertile branches generally showing circinate vernation (initially curled up). Kenrick and Crane in 1997 also placed the genus
Gosslingia
Species of plant in family Pteridaceae
4 to 25 cm long and 1 to 4 cm wide. As the fronds first emerge, their vernation is circinate (tightly coiled). The leaf petiole is brown and grooved adaxially
Myriopteris_wrightii
Topics referred to by the same term
plant bud. For the arrangement of leaves within a vegetative bud, see Vernation. For the arrangement of flower parts within a flower bud (prefloration)
Praefoliation
Species of plant in family Pteridaceae
Unlike many ferns, they do not emerge as coiled fiddleheads (noncircinate vernation). When mature, they are 7 to 30 centimeters (2.8 to 11.8 in) long. The
Myriopteris_lindheimeri
Species of fern
partly covered with a narrowly lobed indusium. New leaves show circinate vernation (tightly curled). Physematium scopulinum is widespread in mountains near
Physematium_scopulinum
Species of fern
scattered; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are 4 to 15 centimeters (1.6 to 5.9 in) long, rarely
Myriopteris_pringlei
Family of ferns
("nerve") of vascular tissue. As in most ferns, young fronds have circinate vernation. In most species, the frond, apart from the vascular tissue, is only a
Hymenophyllaceae
Species of fern
fronds held vertically. New fronds unfurl from a tight coil (circinate vernation) held on a tall stalk. Oblong sori (masses of spores) form beneath a curled-under
Adiantum_aleuticum
Species of fern
standing erect or arching somewhat. They emerge as fiddleheads (circinate vernation). The stipe (the stalk of the leaf, below the blade) is about 50 millimetres
Myriopteris_rawsonii
Genus of ferns
gracilis, which is deeply nested in the alabamensis clade. Circinate vernation (the unfolding of new leaves as fiddleheads) is found throughout the lanosa
Myriopteris
Species of fern
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are 6 to 50 centimeters (2.4 to 20 in) long and 1
Myriopteris_alabamensis
Species of fern in family Pteridaceae
Unlike many ferns, they do not emerge as coiled fiddleheads (noncircinate vernation). When mature, they are 8 to 45 centimeters (3.1 to 17.7 in) long and
Myriopteris_tomentosa
Species of fern
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are 5 to 25 centimeters (2.0 to 9.8 in) in length
Myriopteris_gracillima
Species of fern
centimeters (0.59 to 1.2 in) wide. They emerge as fiddleheads (circinate vernation). The stipe (the stalk of the leaf below the blade) makes up about one-half
Myriopteris_gracilis
Species of plant
base. They do not unfold as fiddleheads like typical ferns (noncircinate vernation). The stipe (the stalk of the leaf, below the blade) is shorter than the
Myriopteris_mickelii
Species of fern
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are 10 to 55 centimeters (3.9 to 22 in) long and 4
Myriopteris_aemula
Species of fern
The fronds spring up in clusters and emerge as fiddleheads (circinate vernation). When mature, they are 7 to 50 centimeters (2.8 to 19.7 in) long and
Myriopteris_lanosa
Species of fern
Unlike many ferns, they do not emerge as coiled fiddleheads (noncircinate vernation). When mature, they are 8 to 40 centimeters (3 to 20 in) long. The stipe
Myriopteris_clevelandii
Species of fern
dispersed; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are from 8 to 32 centimeters (3.1 to 13 in) long.
Myriopteris_fimbriata
Species of fern
form. Like many ferns, new fronds are produced in spring by circinate vernation. A. densa grows in rocky areas, usually on serpentine soils on rocky mountain
Aspidotis_densa
Species of fern in family Pteridaceae
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). Leaf tips are hooked when young. When mature, they are 4 to 25 centimeters
Myriopteris_intertexta
1908 Indian court case on the Nizari Ismaili succession
Justice Russell found that the religious offerings were made out of “deep vernation and reverence” for the Imam and were made for him to use as he saw fit
Haji_Bibi_case
Species of fern in family Pteridaceae
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are 5 to 30 centimeters (2.0 to 12 in) long, and 2
Myriopteris_covillei
Species of succulent plant from Mexico
cincinnus is circinate (unfurling like a fern's frond, see circinate vernation), with 5 to 12 flowers. The pedicels are erect, about 2 to 6 mm long,
Dudleya_pachyphytum
Extinct genus of spore-bearing plants
indeterminate growth and fertile branches generally showing circinate vernation (initially curled up). Hao, Shou-Gang (1989), "A new zosterophyll from
Discalis
Species of fern
clusters; unlike many ferns, they do not unfold as fiddleheads (noncircinate vernation). They range from 10 to 60 centimeters (3.9 to 24 in) long, sometimes
Myriopteris_aurea
Species of fern
Unlike many ferns, they do not emerge as coiled fiddleheads (noncircinate vernation). When mature, they are 6 to 38 centimeters (2.4 to 15.0 in) long and
Myriopteris_rufa
Species of fern
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are up to 30 centimeters (12 in) long. The stipe (the
Myriopteris_allosuroides
Species of fern
clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are 10 to 35 centimeters (3.9 to 14 in) long. The
Myriopteris_cucullans
by the unrolling of a tight spiral, the phenomenon known as circinate vernation. There are about 10,560 known species of ferns in the world. Lycopods
List of pteridophytes of Sri Lanka
List_of_pteridophytes_of_Sri_Lanka
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