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In angiosperms, a hypanthium or floral cup [1] [2] [3] is a structure where basal portions of the calyx, the corolla, and the stamens form a cup-shaped tube. It is sometimes called a floral tube , a term that is also used for corolla tube and calyx tube .
Rosaceae (/ r oʊ ˈ z eɪ s iː. iː,-s i. aɪ,-s i. eɪ /), [5] [6] the rose family, is a family of flowering plants that includes 4,828 known species in 91 genera. [7] [8] [9] The name is derived from the type genus Rosa. The family includes herbs, shrubs, and trees. Most species are deciduous, but some are evergreen. [10]
For roses, the hypanthium is the tissue that composes the edible part of rosehips. Roses and apples are both members of the Rosaceae family; the fact that they have similar fruit morphology is a major consideration in placing them in the same taxonomic family.
Rosa banksiae Rosa persica. There are currently four subgenera in Rosa, although there have been some disputes over the years. [3] The four subgenera are: Hulthemia (formerly Simplicifoliae, meaning "with single leaves") containing one or two species from Southwest Asia, R. persica and R. berberifolia (syn. R. persica var. berberifolia) which are the only species without compound leaves or ...
The Pericarpel (hypanthium) is 5-angled, 3 cm long, 1.5-1.7 cm thick, with acute, long-decurrent podaria, bracteoles (small bracts) subtening (2–8) spines up to 7 mm long, and green in color. The receptacle is 10–12 cm long, about 1.5 cm thick at its middle, and green (or often reddish) at the apex , or reddish throughout.
The flowers are perigynous with a bell- or urn-shaped hypanthium, externally covered with many soft hairs (pubescent) in most species. The flowers have five free petals , which are pink, purple, magenta or white in colour, or initially magenta or rose-red fading to lavender with age.
The carnivorous plant Nepenthes deaniana has pitcher elements that are obconic in shape to capture insects. [2] The hypanthium of the western USA plant Heuchera rubescens has one subspecies with an obconic structure, while several other subspecies have alternative hypantium geometries, so that the obconic characteristic is a subspecies determinant and diagnostic. [3]
Medinilla magnifica, the showy medinilla [1] or rose grape, [2] is a species of epiphytic flowering plant, of the family Melastomataceae, native to the Philippines.Various cultivars and hybrids of this species, genus and family are well-known and have grown to be popular with plant collectors; the species Medinilla speciosa is equally as popular.