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Hollyhocks

June 30th, 2010 Posted in Flowers Tags: ,
Hollyhocks The hollyhocks (Alcea) is a genus of plants in the mallow family (Malvaceae). Description Vegetative characteristics In Alcea species are upright, one-, two-year or short-lived perennial, herbaceous plants. The vegetative parts of plants with stellate hairs (trichomes) are covered, sometimes also with long simple hairs. In the first year they only form a basal rosette of leaves. In the second year, they form a 1-3 m high, more or less unbranched, upright stems with alternate leaves, ending with the inflorescence. The leaves are divided into long petiole and leaf blade. The leaf blade is ovate to round, and depending on the type lobed mild to tiefgeteilt. The leaf margin is crenate to toothed. Stipules are present. Generative characteristics The flowers are individually or collectively in the leaf axils, with a total often a long, spiciform inflorescence. The flowers are large but s... read more

Trumpet tabs

The trumpet tongues (Salpiglossis) are a genus of the nightshade family (Solanaceae). Description Trumpet tongues are annual or perennial herbaceous plants or shrubs that can reach a height of 0.3 to 1 m. The entire plant is equipped with a thick, sticky hair. The basal leaves form a rosette, and sometimes can be up to 4-7 cm long, sometimes reaching a length of only 0.2 to 1.5 cm. The leaves are ovate-elliptic, oblong-elliptic or linear-elliptic, are sessile or possess only short petioles. The leaf margin is entire, sinuate-toothed, or sometimes pinnatifid fiederlappig. The flowers are in panicles or separately growing, almost sessile or 1-2 cm flower stems located, odorless (S. sinuata) or slightly fragrant (S. spinescens). Usually the flowers are offenblütig, sometimes they are also closed, and even stimulating. The calyx is bell-shaped, but somewhat further to 0.7 to 1 cm long, five-lobed, the lobes of equal length, triangular... read more

Pleurothallis

Pleurothallis is a genus of the orchid family (Orchidaceae). Was published by the English botanist Robert Brown in Hortus Kewensis; … The second edition 5: 211, in 1813, basing his description on the species Epidendrum ruscifolium, originally described by Jacquin, and found in Brazil. His name is a reference to the type of shooting some of their species, which extends to the sides, forming patterns that seem ribs. The genus Pleurothallis was ill-defined since its inception. For nearly 200 years this was the genre that would classify any species of the subtribe Pleurothallidinae, when by their morphology was not possible to clearly determine any other genre. This resulted in nearly 2,100 species subject to a genre completely chaotic. In the last decade, the publication of numerous works with its phylogeny and porteriores cinscunscrição changes in other genera of the subtribe with the submission of large numbers of species to them, left Pleurothallis, once... read more