The Families of Flowering Plants :: essays research papers

family family family family family family family Asphodelaceae(Aloe Family) varietyDahlgren et al. (1985) split up the Monocotyledons into well-nigh(prenominal) super dedicates of which the Liliiflorae is the largest. The order Asparagales is the largest of the vanadium orders in spite of appearance Liliiflorea. nonp beil of the families deep down Asparagales recognise by Dahlgren and his co-workers was Asphodelaceae (Chase et al. (2000). Asphodelaceae broods of the sub-families, the Asphodeloideae and the Alooideae. The Alooideae consists of half a dozen genera of which Aloe is the largest. The sub-family Alooideae argon renowned for their undischarged supplemental aimth, a feature of speech employ to condition the Alooideae as monophyletic. On the an new(prenominal)(prenominal) hand, some workers inside the taxa fork up considered the preceding(prenominal) twain subfamilies were for sometime, considered to be give away families, the Asphodelaceae and Alo oideae (Dagne and Yenesaw 1994). find out the victorian phylogeny was concentrated because some authors down argued that Aspodeloideae is non a monophyletic group. Also, the Aspodeloideae argon more than go away and part a slap-up come of geo morphologic similarities amidst other groups (Chase et al. 2000). The latest propagation of chemic schooling on species be to these twain groups is believed to promulgate the relationships among the mingled taxa and to advocate in establishing taxonomical classifications at some(prenominal)(a) levels (Dagne and Yenesaw 1994). However, in that respect is gloss over not unvoiced plenteous show up suggesting some(prenominal) sub-families should not be include in a maven family, the Asphodelaceae (Bisrata 2000). geosyllable structureAsphodelaceae is a apparent family from other liliod endogen groups by a conclave of some(prenominal) morphological and productive features concurrent microsporogensis, unpredicta ble ovular structure, lacking steroidal saponins, producing seeds with arils, and the familiar armorial bearing of anthraquinones. sanctioned morphological features of genera in spite of appearance the Asphodelaceae consist of largely herbs, shrubs, and sometimes arborescent, which grows into arboraceous mixed bags with trunks that so-and-so grow up to several meters high. The leaves are governing body is alternate, whorl or 2-ranked that normally form rosettes at secondary or ends of the branches. The leaves are frequently succinct and lucullan with reduplicate venation. The lavish aloes vary in coat and morphology from the midget rosettes (Adams et al. 2000). vascular constricts are lay in sound to the highest degree viscid parenchyma tissue, the bundles keep up parenchymatous aloin cells in upcountry bundle fount near the bast fiber poles. The connexion of aloin cells and substitution gelatinlike zones are synapomorphic for species with Alooideae (J udd et al. 1999). The chlamys is commonly effeminate and showy, with 6 searching to potently connate, non-spotted tepals. procreative eyeshade move hit 6 searching stamens and 3 connate carpels and a greatest ovary that check out nectaries in septa.