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Soft cover. Condizione: New. 293 pp., illustrations, bibliography, index. "Begonia is familiar as a garden plant grown for its beautiful foliage. Indeed there are few other genera that can challenge Begonia in variety of leaf shapes, colour and patterns. It often comes as a surprise to learn that the forests of Borneo are a hot spot for begonias with almost 200 named species. They grow in the deeply shaded forest understorey from the lowlands to mountain tops and on all rock types including granite, limestone, sandstone and ultramafic rocks. Readily recognised as a begonia by the very unequal sided leaf, until now it has been difficult if not impossible for naturalists to identify Bornean species. The Guide aims to overcome this and to spur interest in this fascinating genus by providing profuse illustrations, a brief description and information on distribution, habitat and uses, if any. For those who wish to delve deeper, a list of all known Bornean begonias is provided together with a complete compendium of literature pertaining to Bornean begonias. Of the 194 begonias known from Borneo, 134 are illustrated here, the great majority for the first time. All Borneo's begonias are endemic, i.e. are found nowhere else in the world, and rather few are widespread with only a handful crossing political boundaries between Brunei, Kalimantan, Sabah and Sarawak.".

Pictorial laminated boards. Condizione: New. Condizione sovraccoperta: New. First Edition. Extremely well illustrated, small 8vo, pp x, 251, a very good new copy in dustwrapper. [With over 3500 km2 of ultramafic rock outcrops in Sabah (4.6% of the total landmass of the state), Malaysia has one of the largest surface expressions of ultramafic rock, and one of the most species-rich floras occupying these outcrops, in the world. Ultramafic rock occupies < 1% of the land surface of the earth and these outcrops are renowned as centres of high plant diversity supporting high levels of plant endemism. Over 1500 plant species have been documented on ultramafic outcrops around Mount Kinabalu, of which a large percentage is endemic to either Mount Kinabalu or Borneo. Sabah is thus recognized as a major locus of floral diversity on ultramafic outcrops, but the full plant diversity and ecology remains largely unknown due to a lack of focused research. Biodiversity in many areas of Sabah is severely threatened by land use conversion and, because many plant species only occur in a single or a few ultramafic sites, impacts on the ecosystems that support them could result in their extinction.].