دانلود کتاب Flora of Australia Ferns, Gymnosperms and Allied Groups Volume 48

Volume 48 of the Flora of Australia contains those plants colloquially known as the ferns, fern allies and gymnosperms. For the first time in 120 years a book is available which treats all of the Australian species in these groups in a uniform, authoritative and comprehensive fashion, and provides identification keys and copious illustrations to make their study and appreciation accessible and enjoyable to all.

The volume describes a total of six Divisions, 42 families, 134 genera and 582 species, and represents contributions from 20 authors, 17 illustrators and 7 photographers.

The fern allies are represented by 44 native species of psilophytes and lycophytes.

True ferns are found almost throughout the country, but are most numerous in wetter, tropical and subtropical areas. Australia has a native flora of 30 families, 103 genera and 390 species of ferns, with another 10 species being naturalised. Only about 40% of the Australian species are endemic.

Native pines are distributed through 3 families, 14 genera and 43 species, of which 39 species are endemic. Most are species of wetter mountainous areas, with the exception of Callitris (17 endemic species), found mainly in drier open woodlands.

Australian cycads number 69 species, all endemic, in 4 genera and 3 families. They are confined mainly to the forests of eastern and northern Australia, with a few in south-western Western Australia and central Australia.

This volume covers 6 Divisions, 42 families, 134 genera and 582 species.

26 new taxa are described, including a new genus in Dryopteridaceae — Revwattsia D.L.Jones, as well as many new combinations and lectotypifications.