Two new species of the genus Millettia, M. sirindhorniana and tomentosa, are herein described illustrated. Millettia shares morphological characteristics with extensa fruticosa in being a woody climber same leaflet shape inflorescence type. However, it differs from those by presence stipels basal callosities, its shallowly crenate floral disk. tomentosa is similar to suddeei, but first having b...

As anyone who has looked at a petunia or a pansy can testify, plants generate flowers with characteristic numbers and patterns of organs. The floral organs are derived from a pool of stem cells called the floral meristem. In wild-type Arabidopsis thaliana flowers (shown at lower left) the meristem gives rise to four sepals that enclose the bud, four white petals, six pollen-bearing stamens and ...

Flowers of the order Zingiberales demonstrate a remarkable trend of reduction in the number of fertile stamens; from five or six fertile, filamentous stamens bearing two thecae each in Musaceae and Strelitziaceae to just a single petaloid stamen bearing a single theca in Cannaceae and Marantaceae. As one progresses from ancestral to derived floral forms, 5-6 fertile stamens are replaced by 4-5 ...

As anyone who has looked at a petunia or a pansy can testify, plants generate flowers with characteristic numbers and patterns of organs. The floral organs are derived from a pool of stem cells called the floral meristem. In wild-type Arabidopsis thaliana flowers (shown at lower left) the meristem gives rise to four sepals that enclose the bud, four white petals, six pollen-bearing stamens and ...

Background and aims – Two new species of Vellozia (Velloziaceae) are here described illustrated, albohexandra V. mellosilvae . These morphologically similar to armata , luteola inselbergae probably belonging the same informal group. Material methods Morphological anatomical descriptions were based on herbarium specimens in situ observations. Standard taxonomy plant anatomy practices applied. Ke...

The diversity of the floral characters in 25 species Brassicaceae representing seven tribes was studied through tracing their organs vascularization. aim present study is to explore contribution micro-floral understanding relationships among as well evolutionary trends calyx, corolla, androecium and gynoecium. It concluded that vascularization sepals, petals, stamens, nectaries carpels consider...

Mutations in CUCl and CUC2 (for NP-SHAPED COTYLEDON), which are newly identified genes of Arabidopsis, caused defects in the separation of cotyledons (embryonic organs), sepals, and stamens (floral organs) as well as in the formation of shoot apical meristems. These defects were most apparent in the double mutant. Phenotypes of the mutants suggest a common mechanism for separating adjacent orga...

Mutations in CUC1 and CUC2 (for CUP-SHAPED COTYLEDON), which are newly identified genes of Arabidopsis, caused defects in the separation of cotyledons (embryonic organs), sepals, and stamens (floral organs) as well as in the formation of shoot apical meristems. These defects were most apparent in the double mutant. Phenotypes of the mutants suggest a common mechanism for separating adjacent org...

Pedicularis yaoshanensis H. Wang from Yunnan, China, is described and illustrated. The new species was found growing on wet cliffs, at high elevations in the Yaoshan Mountain. It is placed in Pedicularis series Longiflorae Prain. The main diagnostic features of P. yaoshanensis include its acaulescent habit, pinnatipartite leaves, calyx with 3 lobes (the posterior one smaller and tripartite), th...