Adiantum Formosum
''Adiantum formosum'', known as the giant maidenhair or black stem maidenhair is a fern found in Australia and New Zealand. It was one of the many species authored by Scottish botanist Robert Brown (botanist, born 1773), Robert Brown, appearing in his 1810 work ''Prodromus Florae Novae Hollandiae et Insulae Van Diemen''. Its species name is the Latin adjective ''formosus'' "handsome" or "beautiful". ''Adiantum formosum'' is an attractive plant, with fronds up to 120 cm (48 in) high. The rhizome of this species is unusually deep, up to 60 cm (24 in) below into the earth. The stems are black and can reach 90 cm (36 in) in length, while the fronds or blades are triangular with rectangular segments. The last segment of the frond is irregular and asymmetrical, on a short stem. This ''maidenhair'' fern can grow to 2 metres (7 ft) tall. The smallest segments of the fronds are the pinnules, which are wedge-shaped, rectangular or trapezoid. They have 1– ...
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Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the ...
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