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Plant morphology treats both the vegetative structures of plants, as well as the reproductive structures. The vegetative (somatic) structures of vascular plants include two major organ systems: (1) a shoot system, composed of stems and leaves, and (2) a root system. These two systems are common to nearly all vascular plants, and provide a ...
The opposite of homologous organs are analogous organs which do similar jobs in two taxa that were not present in their most recent common ancestor but rather evolved separately. For example, the wings of insects and birds evolved independently in widely separated groups , and converged functionally to support powered flight , so they are ...
Disk – an enlargement or outgrowth from the receptacle of the flower, located at the center of the flowers of various plants. The term is also used for the central area of the head in composites where tubular flowers are attached. Epicalyx – a series of bracts below the calyx. Floral axis – Floral envelope – the perianth [16] Flower –
Versuch die Metamorphose der Pflanzen zu erklären, known in English as Metamorphosis of Plants, was published by German poet and philosopher Johann Wolfgang von Goethe in 1790. In this work, Goethe essentially discovered the (serially) homologous nature of leaf organs in plants, from cotyledons , to photosynthetic leaves, to the petals of a ...
A plant that loses all of its leaves only briefly before growing new ones, so that it is leafless for only a short time, e.g. approximately two weeks. bristle A straight, stiff hair (smooth or with minute teeth); the upper part of an awn (when the latter is bent and has a lower, stouter, and usually twisted part, called the column). brochidodromous
Central Park is an urban park between the Upper West Side and Upper East Side neighborhoods of Manhattan in New York City, and the first landscaped park in the United States.. It is the sixth-largest park in the city, containing 843 acres (341 ha), and the most visited urban park in the United States, with an estimated 42 million visitors annually as of 2016
The park's first head gardener, Ignatz Anton Pilát, stored plants at the site of Conservatory Garden during the construction of Central Park. [2]: 55–56 At the time, park architects Frederick Law Olmsted and Calvert Vaux wanted to landscape most of the northeast corner of Central Park as part of an arboretum, including the site of the current Conservatory Garden and Harlem Meer.
The Ramble is one of three main woodlands in Central Park, [1] [2] [3]: 44–45 the others being North Woods and Hallett Nature Sanctuary. [3]: 2–3 The Ramble covers 36 to 38 acres (14.6 to 15.4 ha), and contains a series of winding paths, as well as outcrops, rustic structures, and several bridges.