"Calyces of up to nine whorls have been recorded, and up to 12 whorls of stamens have been observed. Cyclic flower A cyclic flower is a flower type formed out of a series of whorls; sets of identical organs attached around the axis at the same point. Most flowers consist of a single whorl of sepals termed a calyx; a single whorl of petals termed a corolla; one or more whorls of stamens (together termed the androecium); and a single whorl of carpels termed the gynoecium. This is a cyclic arrangement. Some flowers contain flower parts with a spiral arrangement."
"Sepal A sepal ( or ) is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom. The term ""sepalum"" was coined by Noël Martin Joseph de Necker in 1790, and derived from the Greek σκεπη (""skepi""), a covering. Collectively the sepals are called the calyx (plural calyces), the outermost whorl of parts that form a flower. The word ""calyx"" was adopted from the Latin ""calyx"", not to be confused with ""calix"", a cup or goblet. ""Calyx"" derived from"
"flowers (e.g., Rosaceae, Myrtaceae) a hypanthium includes the bases of sepals, petals, and the attachment points of the stamens. Sepal A sepal ( or ) is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom. The term ""sepalum"" was coined by Noël Martin Joseph de Necker in 1790, and derived from the Greek σκεπη (""skepi""), a covering. Collectively the sepals are called the calyx (plural calyces), the outermost whorl of parts that form a flower. The word ""calyx"""
"Tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very similar appearance), as in ""Magnolia"", or because, although it is possible to distinguish an outer whorl of sepals from an inner whorl of petals, the sepals and petals have similar appearance to one another (as in ""Lilium""). The term was first proposed by Augustin Pyramus de Candolle in 1827 and was constructed by analogy with"
"They measure by and pubescent, hairy outside and sparsely pubescent inside. Collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud, which is usually green; the sepals, are pale green, narrowly ovate—""oval or egg-shaped""—and 2 to 3 times as long as they are wide, measuring at . They are pubescent, hairy outside and glabrous, smooth without hairs inside. The sepals are acuminate, tapering gradually to a sharp point at the tips of certain leaves or petals or sepals, at their apex. The corolla, a collective term for all the petals of a flower,"
"Petal Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. Together, all of the petals of a flower are called a corolla. Petals are usually accompanied by another set of special leaves called sepals, that collectively form the ""calyx"" and lie just beneath the corolla. The calyx and the corolla together make up the perianth. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ""tepal"" is appropriate include genera such as ""Aloe"""
"flowering plants (angiosperms) in forming an outer floral envelop. In ""P. baronii""'s case, the sepals are dark green, connate at the base for about 0.2 mm (.008 (0.098-inch), persistent until maturity of the flower, and ovate or narrowly so. They measure 1.5–2.5 times as long as they are wide at 2.5 mm (inch) to 6 mm (inch) in length by 1.5 mm (0.059-inch) to 2.5 mm (0.098-inch). They are acuminate at the apex and glabrous, smooth, to sparsely pubescent, slightly hairy, outside and glabrous inside. The collective term for all the petals of a flower or the inner whorl of"
"authors will refer to ""sepals and petals"" where others use ""tepals"" in the same context. In some plants the flowers have no petals, and all the tepals are sepals modified to look like petals. These organs are described as petaloid, for example, the sepals of hellebores. When the undifferentiated tepals resemble petals, they are also referred to as ""petaloid"", as in petaloid monocots, orders of monocots with brightly coloured tepals. Since they include Liliales, an alternative name is lilioid monocots. Terms used in the description of tepals include pubescent (with dense fine, short, soft hairs, downy), puberulent (minutely pubescent, hairs"
"the terms ""petal"" and ""sepal"". (De Candolle used the term perigonium or perigone for the tepals collectively; today this term is used as a synonym for ""perianth"".) Undifferentiated tepals are believed to be the ancestral condition in flowering plants. For example, ""Amborella"", which is thought to have separated earliest in the evolution of flowering plants, has flowers with undifferentiated tepals. Distinct petals and sepals would therefore have arisen by differentiation, probably in response to animal pollination. In typical modern flowers, the outer or enclosing whorl of organs forms sepals, specialised for protection of the flower bud as it develops, while"
"sepals are green or green and brown, linear, long, wide, turned downwards and usually parallel to each other. The petals are erect or turned backwards with an egg-shaped blade long and wide on a dark brown stalk long. The labellum is long and has three lobes. The centre lobe is spade-shaped, long, wide and the side lobes are egg-shaped with the narrower end towards the base, long and wide. There is a ridge-shaped callus in the mid-line of the base of the labellum and extending about half way along. Flowering occurs from August to December. ""Diuris sulphurea"" was first formally"
"sepals, although they may be equal or unequal, unfused or basally fused, petal-like or green. Likewise there are always three petals, but these may be equal or in two forms, free or basally fused, white or coloured. The petals are sometimes clawed, meaning they narrow to stalk at the base where they attach to the rest of the flower. There are almost always six stamens in two whorls, but these occur in a myriad of arrangements and forms. They may be all fertile and equal or unequal, but in many genera two to four are staminodes (i.e. infertile, non-pollen producing"
"the petals are absent and the sepals are colorful. When the undifferentiated tepals resemble petals, they are referred to as ""petaloid"", as in petaloid monocots, orders of monocots with brightly coloured tepals. Since they include Liliales, an alternative name is lilioid monocots. Examples of plants in which the term tepal is appropriate include genera such as ""Aloe"" and ""Tulipa"". In contrast, genera such as ""Rosa"" and ""Phaseolus"" have well-distinguished sepals and petals. The number of sepals in a flower is its merosity. Flower merosity is indicative of a plant's classification. The merosity of a eudicot flower is typically four or"
"3 large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals (or tepals), known as the 'standards'. The falls are obovate, and are long and 1.5 cm wide. In the middle of the falls, is a serrated, crest surrounded by blue and white stripes or blotches. The petals are curved toward centre of flower. The claw (part of the petal closest to the stem) is similar to a gutter. The standards are narrowly, ovate or broadly lanceolate, and are long and 1.5 cm wide. It has broad or flat and wide, style branches, which are long and"
"exact clone of its parent plant. Many kinds of daylilies have thickened roots in which they store food and water. A normal, single daylily flower has three petals and three sepals, collectively called tepals, each with a midrib in either the same basic color or a different color. The centermost part of the flower, called the throat, usually is of a different color than the more distal areas of the tepals. Each flower usually has six stamens, each with a two-lobed anther. After successful pollination, a flower forms a botanical capsule (often erroneously called a pod since botanical pods are"
"barely visible to the naked eye) and puberulous (dense covering of very short soft hairs). Tepal shape is described in similar terms to those used for leaves (see Glossary of leaf morphology). ""Botany: A Brief Introduction To Plant Biology"" - 5th ed. Thomas L. Rost; T. Elliot Weier - Wiley & Sons 1979 . ""Plant Systematics"" - Jones; Samuel - McGraw-Hill 1979 . Tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts"
"The flower of a typical plant in the orchid family Orchidaceae has three sepals and three petals. One petal, called the labellum, ""lip"" or ""tongue"", is typically quite different from the other two. It usually functions to attract an insect pollinator. As an orchid flower bud develops, the attachment of the lip to the axis of the flower is above (or adaxial to) that of the other two petals. In many orchid genera, as the flower opens, it twists so that the attachment of the ""lip"" is below that of the other two petals, the three sepals and the sexual"
"A corolla of separate tepals is ""apopetalous"". If the petals are free from one another in the corolla, the plant is ""polypetalous"" or ""choripetalous""; while if the petals are at least partially fused together, it is ""gamopetalous"" or ""sympetalous"". In the case of fused tepals, the term is ""syntepalous"". The corolla in some plants forms a tube. Petals can differ dramatically in different species. The number of petals in a flower may hold clues to a plant's classification. For example, flowers on eudicots (the largest group of dicots) most frequently have four or five petals while flowers on monocots have"
"generally colourful and bright (which is why they are sometimes called outer tepals), with one on each side (""lateral sepals"") and one usually at the top of the flower (""dorsal sepal""), sometimes forming a hood. The three petals (or inner tepals), also showy, are located alternately between the sepals, two at the side and one usually at the bottom of the flower. The lower petal is referred to as the ""labellum"" or ""lip"", and is usually distinctively different from the side petals. ""Thelymitra"" is an example of a genus where the lower petal is similar in appearance to the other"
"flowers are borne singly in leaf axils on a hairy stalk mostly long. There are 5 sepals which are hairy, greenish-brown to purple, mostly long, sticky and often shiny. The petals are long and joined at their lower end to form a tube. The tube is mauve, purple or pink on the outside and white inside. The outside is covered with hairs, the inside surface of the petal lobes is glabrous and the inside of the tube is densely filled with woolly hairs. The 4 stamens are fully enclosed within the tube. Flowering occurs from March to December and is"
"large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals (or tepals), known as the 'standards'. They come in shades of blue, from clear blue, to dark blue and purple. The falls have a bright yellow ridge, or orange mark. As most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings. It was counted as 2n=20, The specific epithet ""hyrcana"", refers to Hyrcania, a historical region composed of the land south-east of the Caspian Sea in modern-day Iran. In 1848, specimens of the plant were originally collected"
"this may be augmented by more specialised structures like the corona (see below). When the corolla consists of separate tepals the term apotepalous is used, or syntepalous if the tepals are fused to one another. The petals may be united to form a tubular corolla (gamopetalous or sympetalous). If either the petals or sepals are entirely absent, the perianth can be described as being monochlamydeous. Both sepals and petals may have stomata and veins, even if vestigial. In some taxa, for instance some magnolias and water lilies the perianth is arranged in a spiral on nodes, rather than whorls. Flowers"
"The sepals of ""Pachypodium brevicaule's"" flower are glaucous, having a fine bloom over the surface. This bloom covers the basal part of the corolla tube, the petals of a flower considered as a group or unit and usually of a color other than green, or the inner whorl of the perianth shaped like a tube. The sepals are connate, united to a structure of the same kind, i.e. other sepals, at the base for about 0.5 mm. They are narrowly ovate, broad and rounded at the base and tapering toward the end, or narrowly oblong, having a somewhat narrowly elongated"
"The normal form of the sepals can be found in ""Cattleya"", where they form a triangle. In ""Paphiopedilum"" (Venus slippers), the lower two sepals are fused into a synsepal, while the lip has taken the form of a slipper. In ""Masdevallia"", all the sepals are fused. Orchid flowers with abnormal numbers of petals or lips are called peloric. Peloria is a genetic trait, but its expression is environmentally influenced and may appear random. Orchid flowers primitively had three stamens, but this situation is now limited to the genus ""Neuwiedia"". ""Apostasia"" and the Cypripedioideae have two stamens, the central one being"
"There are 5, green to blackish purple, linear sepals which are about long, wide and densely hairy, especially near their bases. The petals are long and are joined at their lower end to form a tube. The petal tube is purple to lilac-coloured and white inside with faint lilac spots. The petal tube and lobes are slightly hairy on the outside, the lobes are glabrous on the inside but the tube is inside of the tube is filled with long, soft hairs. The 4 stamens are fully enclosed in the petal tube. Flowering occurs from July to August and the"
"Each flower has three to five leathery sepals that mostly end in a stretched tip, making it ""leafy"", but sometimes one and rarely two sepals may be obovate with a rounded tip, which do not fall after flowering. The corolla usually consists of six to nine oblong cyclamen or rarely pink to white petals of 3-6½ × 1½-3 cm. Towards the centre of the flower are many stamens consisting of filaments of ½–1 cm topped with anthers that ripen from the inside out, open with slits and release yellow pollen. The pollen is released in sets of four grains together."
"others may form a tight spiral, or whorl, around the flower stem. First, at the base, are those non-reproductive structures involved in protecting the flower when it is still a bud, the sepals, then are those parts that play a role in attracting pollinators and are typically coloured, the petals, which together with the sepals make up the perianth (perigon, perigonium). If the perianth is differentiated, the outer whorl of sepals forms the calyx, and the inner whorl of petals, the corolla. If the perianth is not differentiated into sepals and petals, they are collectively known as tepals. In some"
"sepals are green with a purplish tinge and are egg-shaped to heart-shaped but asymmetrical and unequal in size, with the largest sepal emerging from the side of the stalk. The petals are long and are joined at their lower end to form a tube. The petal tube is blue to purple on the outside, white with brown or purple spots inside. The outer surface of the petal tube and its lobes is hairy, the inside of the lobes is glabrous and the inside of the tube is filled with long, soft hairs. The 4 stamens are fully enclosed in the"
"sepal and petals are joined, forming a hood called the ""galea"" over the column. The petals are not flared and are similar in length to the dorsal sepal which ends in a point. There is a wide gap at each side of the flower between the galea and the lateral sepals. The lateral sepals are erect and have a tapering tip, long, only slightly taller than the galea and there is a notch in the bulging sinus between them. The labellum is long, about wide, dark bluish-green, curved and protrudes prominently above the sinus. Flowering occurs from November to January."
"with as few as two or as many as 15 or even more. Each flower has the standard structure for the genus. There are three outer sepals which may be lighter or darker shades of green or violet, the lightest appearing white. Each is long by wide. The upper (dorsal) sepal varies from flat to boat-shaped and is bent backwards at the base and then curves forwards. Inside the sepals are three petals, two lateral petals and the lip. The lateral petals may be pink to violet in colour, or green, and are around long by wide. The lip (labellum)"
"of flowering. Up to six translucent flowers with green and brown markings and long, wide are borne on a flowering spike tall. Each flower is carried on the end of a long, thin stalk. Three or four papery bracts are wrapped around the flowering spike. The dorsal sepal and petals are joined to form a hood called the ""galea"" over the column with the dorsal sepal having a thread-like tip long. The lateral sepals are slightly wider than the galea and often touch the ground. They are shallowly dished, densely hairy on their outer edges and suddenly taper to a"
"is a single green, white and brown flower long and wide which is borne on a flowering spike high. The dorsal sepal and petals are fused to form a hood or ""galea"" over the column and the petals and dorsal sepal have a short point on their tips which end at or near horizontal. There is a wide gap at each side of the flower between the petals and lateral sepals. The lateral sepals are erect with a tapering tip long no higher than the galea and there is a curved sinus with a deep notch between them. The labellum"
"flowers are borne singly in leaf axils on a hairy stalk long. There are 5 colourful, overlapping, egg-shaped to lance-shaped, hairy sepals which are mostly long, sometimes longer. The sepals may be green, yellow or orange to purplish-red. The petals are long and are joined at their lower end to form a tube. The petals are orange-red to yellow or cream-coloured on the outside and yellow inside sometimes with raised red to orange spots. The petal tube and lobes are hairy inside and outside. The 4 stamens extend beyond the end of the petal tube. Flowering occurs from July to"
"crowded together on a flowering stem up to high with between four and six stem leaves with their bases wrapped around it. The flowers are long with the dorsal sepal and petals joined to form a hood called the ""galea"" over the column. The dorsal sepal is gently curved but suddenly curves downward near the tip and is about the same length as the petals. The lateral sepals turn downwards, long, wide and fused together forming a cup with tips about long and parallel to each other. The labellum is about long and wide, and pale green with a dark"