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They are mostly epiphytes, but include some terrestrials and myco-heterotrophs, all occurring in most tropical areas. The main stem grows in a single direction. Many of the species develop pseudobulbs (i.e. a bulge at the base of a stem), that are normally shorter and sturdier than those in the epidendroids.
Umbel – where the flower head has all flower stalks rising from the same point and of equal length, the flower head seeming hemispherical like an open umbrella. Verticillaster – a whorled collection of flowers around a stem, the flowers produced in rings at intervals up the stem.
This article lists the living orders of the Viridiplantae, based primarily on the work of Ruggiero et al. 2015. [1] Living order of Lycophytes and ferns are taken from Christenhusz et al. 2011b [2] and Pteridophyte Phylogeny Group. [3]
Flowering plants usually face evolutionary pressure to optimize the transfer of their pollen, and this is typically reflected in the morphology of the flowers and the behavior of the plants. [54] Pollen may be transferred between plants via several 'vectors,' or methods. Around 80% of flowering plants make use of biotic or living vectors.
Illustration of leaf and flower morphology for Ophrys apifera (left) and Ophrys fuciflora (right) Ophrys apifera grows to a height of 15–50 centimetres (6–20 in). This hardy orchid develops small rosettes of leaves in autumn that continue to grow slowly during winter. Basal leaves are ovate or oblong-lanceolate, and upper leaves and bracts ...
The Iris flower data set or Fisher's Iris data set is a multivariate data set used and made famous by the British statistician and biologist Ronald Fisher in his 1936 paper The use of multiple measurements in taxonomic problems as an example of linear discriminant analysis. [1]
Grevillea (/ ɡ r ɪ ˈ v ɪ l i ə /), [2] commonly known as spider flowers, [3] is a genus of about 360 species of evergreen flowering plants in the family Proteaceae.Plants in the genus Grevillea are shrubs, rarely trees, with the leaves arranged alternately along the branches, the flowers zygomorphic, arranged in racemes at the ends of branchlets, and the fruit a follicle that splits down ...
The chrysanthemum is the official flower of the city of Salinas, California. [44] The chrysanthemum is the official flower of several fraternities and sororities, including Chi Phi, Phi Kappa Sigma, Phi Mu Alpha Sinfonia, [45] Lambda Kappa Sigma, [46] Sigma Alpha, and Triangle Fraternity.