Description
Family Rubiaceae
The Rubiaceae are trees , shrubs , or infrequently herbs comprising about 450 genera and 6,500 species, including some lianous forms. The leaves are simple and usually entire , and are opposite or sometimes whorled ; stipules are present and interpetiolar . The flowers are nearly always bisexual and actinomorphic , often heterostylous, and usually are in cymose inflorescences. The calyx is mostly somewhat reduced and 4-5-lobed or sometimes the lobes are obsolete or rarely one of them greatly expanded and brightly colored . The sympetalous corolla is mostly 4-5-lobed, occasionally with 3 or up to 10 lobes. The androecium consists of as many stamens as corolla lobes and is adnate to the corolla tube or epigynous zone, alternate with the lobes. The gynoecium consists of a single compound pistil of 2 or seldom more carpels, a single style , and a nearly always inferior ovary with the number of locules equaling the number of carpels, each with 1-many axile ovules. An epigynous nectary disk is usually present. The fruit is variable, sometimes forming multiples . -- Gerald Carr.
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Magnoliophyta
()
- Sinnott, 1935 Ex Cavalier-Smith, 1998
- Flowering Plants
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Radiatopses
()
- Kenrick & Crane, 1997
- Class:
Magnoliopsida
()
- Brongniart, 1843
- Dicotyledons
- Subclass:
Lamiidae
()
- Takhtajan Ex Reveal, 1992
- Superorder:
Gentiananae
()
- Thorne Ex Reveal, 1992
- Superorder:
Gentiananae
(
- Subclass:
Lamiidae
(
- Class:
Magnoliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Magnoliophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Similar Species
Members of the genus Exostema
There are approximately 71 species in this genus:
E. acuminatum · E. angustifolia · E. angustifolium · E. bicolor · E. brachycarpum · E. capitatum · E. caribaeum (Caribbean Princewood) · E. caribeum · E. cordatum · E. coriaceum · E. corymbosum · E. curbeloi · E. elegans · E. ellipticum (Plateado) · E. ellipticum var. triflorum · E. formosum f. laeve · E. formosum f. leprosum · E. glaberrimum · E. grandiflorum · E. ixoroides · E. lancifolium · E. lineatum · E. longiflorum · E. longiflorus · E. lucidum · E. maynense · E. maynensis · E. mexicanum · E. microcarpum · E. monticola · E. myrtifolium · E. myrtifolium var. barbatum · E. myrtifolium var. myrtifolium · E. myrtoides · E. nitens · E. orbiculatum · E. parviflorum · E. pervestitum · E. polyphyllum · E. precaribaeum · E. pulveratum · E. pulverulentum · E. purpureum avenium · E. purpureum purpureum · E. purpureum subsp. avenium · E. revolutum · E. rotundatum · E. rupicolum · E. salicifolium · E. sanctae-luciae (Jamaicanbark) · E. scabrum · E. selleanum · E. spinosum · E. spinosum spinosum · E. spinosum subsp. tortuense · E. stenophyllum · E. subcordatum · E. triflorum · E. valenzuelae · E. valenzuelae eggersii · E. valenzuelae parvifolium · E. valenzuelae subsp. eggersii · E. valenzuelae subsp. maestrense · E. valenzuelae subsp. parvifolium · E. valenzuelae subsp. wrightii · E. valenzuelae valenzuelae · E. valenzuelae var. parvifolium · E. valenzulae · E. velutina · E. velutinum · E. veraensis
More Info
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Notes
Identifiers
- Biodiversity Heritage Library NamebankID: 10783723
- Global Biodiversity Information Facility Taxonkey: 15823053
- Globally Unique Identifier: urn:lsid:ipni.org:names:748901-1
- Zipcode Zoo Species Identifier: 3674429
