Edited by Ho Dinh Hai Long An - Vietnam Updated: 10/08/2015
1- Introduction to the Subfamily Mimosoideae
1.1- Overview Some classification systems, for example the Cronquist system, treat the Fabaceae in a narrow sense, raising the Mimisoideae to the rank of family as Mimosaceae. The Angiosperm Phylogeny Group treats Fabaceae in the broad sense. Mimosoideaeare a subfamily of theflowering plantfamilyFabaceae(Leguminosae) characterized by flowers with small petals and numerous prominent stamens. Synonyms AcaciaceaeE. Meyer Mimosaceae R. Brown
2.1- Tribe Acacieae + Overview The tribe Acacieae is one of four tribes of the subfamily Mimosoideae of the family Fabaceae. + Genera Tribe Acacieae includes five genera: 1- Genus Acacia Mill. (in the strict sense, more or less only the previous subgenus Phyllodineae) 2- Genus Acaciella Britton & Rose 3- Genus Mariosousa Seigler & Ebinger 4- Genus Senegalia Raf. 5- Genus Vachellia Wight & Arn.
2.2- Tribe Ingeae + Overview Ingeaeis atribeofleguminousplants in the subfamilyMimosoideaeofflowering plantsin thepeafamily. They are neotropical trees and large trees in the legume family (Fabaceae). They grow from Mexico to Argentina. Most of the species can be found in the Amazon Basin and the Guyana Highlands. They have a deep-green fernlike foliage, with bipinnately compound leaves. Some species have lauroid type leaves. Some arespinytreesandshrubs found insubtropicalandtropicalregions of the Americas. The ripe pods eventually fall to the ground and are eaten by various mammals, thereby dispersing the seed. Some Ingeae species are used for their hard wood, in others that are widely cultivated, the fruits are legume pods that contain large amounts of sugar and are edible. Others are used as ornamental trees in gardens. The seeds of some species are used as animal and human food.
2.4- Tribe Mimozygantheae + Overview Mimozygantheaeis one of fourtribesofleguminousplants in the subfamilyMimosoideaeofflowering plantsin thepeafamily (Fabaceae). It is a neotropical trees and large wood tree in the family Fabaceae. Native: SOUTHERN AMERICA Western South America:Bolivia- Santa Cruz Southern South America:Argentina;Paraguay + Taxonomy The monogeneric tribe Mimozygantheae has only one genus: Mimozyganthus The Genus Mimozyganthus has only one species: Mimozyganthus carinatus (Grisseb.) Burkart Synonyms (≡)Mimosa carinataGriseb.
+ Note on the TribeMimozygantheae The monogeneric tribe Mimozygantheae was described to accommodate the single speciesMimozyganthus carinatus(Griseb.) Burkart, originally described in the genusMimosa. Burkart commented that the genus Mimozyganthuswas transitional between the Mimosoideae and Caesalpinioideae especially because of its peltate stigma, imbricate sepals and essentially valvate petals (the upper half of the corolla always with the petals valvate but the lower half with some overlap at the margins). He suggested, because of the combination of petal and sepal aestivation, a relationship with tribe Parkieae (the two genera of that tribe currently placed elsewhere and the tribe disbanded) but pointed out that Mimozyganthusdiffered in having spinescent stipules, free sepals, free stamens, eglandular anthers, no staminodes, a few-seeded ovary and a large peltate stigma. Burkart (1952) proposed that the genusDinizia Ducke should also be included in the Mimozygantheae but Hutchinson (1964) placedDiniziain the Mimoseae and Schulze-Menz (1964) placed it in the Parkieae. Guinet (1981) groupedMimozyganthuswithDiniziain his mimosoid pollen study, but Elias (1981b) repositioned Diniziain the Mimoseae, thus re-establishing the Mimozygantheae as monogeneric. Luckowet al.(2003) did not includeMimozyganthusin their molecular study but recent work (Luckowet al., submitted a) indicates thatMimozyganthusshould be placed in the Prosopis group of Mimoseae, nearPiptadeniopsisand Prosopidastrum. While treated in its traditional sense here pending publication of this analysis, there is no doubt that tribe Mimozygantheae should be disbanded. Source: Mimozygantheae.