, or trees
(to 20 m
, or rarely epiphytic. Stipules lacking. Leaves simple
, commonly opposite and decussate with one of a pair slightly smaller than other, rarely verticillate
or alternate by abortion
of one of a pair, usually 1-4(or 5) secondary veins on each side of midvein
, originating at or near base
and anastomosing apically, tertiary veins numerous, parallel, and connecting secondary veins and midvein but in Memecylon secondary veins pinnate and tertiary veins reticulate
. Inflorescences cymose
, in paniculate
, or a cincinnus, rarely flowers single, fascicled, or born on a spike; bracts sometimes conspicuous
. Flowers bisexual
but androecium often slightly zygomorphic, usually (3 or) 4- or 5(or 6) -merous, perianth biseriate
, perigynous; bracteoles opposite, usually caducous
. Hypanthium funnel-shaped, campanulate
, or urceolate
. Calyx lobes
(3-) 5(or 6), valvate
, but not in Chinese species) . Petals (3-) 5(or 6), equal to number of sepals, distinct
, imbricate. Stamens usually twice as many as petals and in 2 whorls, rarely as many as petals by loss of 1 whorl, isomorphic
distinct, often geniculate
in bud; anthers
typically 2-celled, introrse
by 1 or 2 apical pores
or by short longitudinal
slits (Astronia, Memecylon) ; connective
often variously appendaged. Pistil and style 1; stigma minute, capitate or truncate
. Ovary commonly inferior or semi-inferior, locules usually (3 or) 4 or 5(or 6) with numerous
, rarely 1-loculed and ovules ca.
9 (Memecylon) ; placentation axillary
(Astronia and, outside China, Pternandra Jack
), or free
central (Memecylon) . Fruit a dry or fleshy
capsule or a berry, loculicidally dehiscent or indehiscent. Seeds (when 3-6-loculed) usually small, curved
through half a circle (cochleate) or wedge-shaped (cuneate), in Memecylon seeds large and ovoid
; endosperm absent.
Between 156 and 166 genera (150-160 in Melastomataceae sensu stricto and six in Memecylaceae here considered part of Melastomataceae) and ca. 4500 species (ca. 4050 in Melastomataceae sensu stricto and 450 in Memecylaceae [Olisbeoideae if considered a subfamily of Melastomataceae]) : primarily in tropical and subtropical regions; 21 genera (five endemic) and 114 species (72 endemic) in China.
Chinese genera of economic value include Osbeckia (medicine) and Melastoma (wild fruit and ornamental flowers) .
Typically found at an altitude of 0 to 1,311 meters (0 to 4,301 feet).
- Whittaker & Margulis,1978
- Haeckel, 1866
- Cavalier-Smith, 1981
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Flowering Plants
- Kenrick & Crane, 1997
- Brongniart, 1843
- Takhtajan, 1967
- Superorder: Myrtanae () - Takhtajan, 1967
- Subclass: Rosidae () - Takhtajan, 1967
- Class: Magnoliopsida () - Brongniart, 1843 - Dicotyledons
- Infraphylum: Radiatopses () - Kenrick & Crane, 1997
- Subphylum: Euphyllophytina ()
- Phylum: Magnoliophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Flowering Plants
- Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
- Kingdom: Plantae () - Haeckel, 1866 - Plants
Members of the genus Tristemma
ZipcodeZoo has pages for 0 species, subspecies, varieties, forms, and cultivars in this genus:
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- A general history of the dichlamydeous plants, comprising complete descriptions of the different orders; together with the characters of the genera and species, and an enumeration of the cultivated varieties. .. the scientific names accentuated, t By George Don. London, J.G. and F. Rivington [etc.]1831-38. url p. 761.
- Illustrations of the natural orders of plants with groups and descriptions. Reduced from the original folio ed. 1 1868 London: Sampson Low, Son, and Marston, 1868. url explanation of plate 56.
- Madagascar: an environmental profile IUCN Conservation Monitoring Centre url p. 352, p. 368.
- The Bradley bibliography; a guide to the literature of the woody plants of the world published before the beginning of the twentieth century; Cambridge, Riverside Press, 1911-18. url p. 642.
- The Journal of the Linnean Society. Botany. 25 1890 London: the Society: Longman, Green, Longman, Roberts & Green: ||Williams and Norgate, 1865-1968. url p. 263.
- The vegetable kingdom: or, The structure, classification, and uses of plants, illustrated upon the natural system / by John Lindley. London: Bradbury and Evans, 1846. url p. 733, p. 830.
- The vegetable kingdom; or, The structure, classification, and uses of plants, LondonBradbury & Evans1853 url p. 830.
- Chen Cheih. 1984. Melastomataceae. In: Chen Cheih, ed., Fl. Reipubl. Popularis Sin. 53(1): 135-293.
- Global Biodiversity Information Facility. Accessed March 15, 2008. http://www.gbif.org Mediated distribution data from provider.
Accessed through GBIF Data Portal March 15, 2008:
- Missouri Botanical Garden
- Biodiversity Heritage Library NamebankID: 5858134
- Global Biodiversity Information Facility Taxonkey: 15620995
- Globally Unique Identifier: urn:lsid:ipni.org:names:576833-1
- Zipcode Zoo Species Identifier: 3548485
- Jie Chen & Susanne S. Renner "Melastomataceae". in Flora of China Vol. 13 Page 360. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Mean = 636.370 meters (2,087.828 feet), Standard Deviation = 562.030 based on 19 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]