Suchergebnisse

Summary. The history, taxonomy, distribution, ecology, conservation status and cultivation of the Mexican endemic Mexipedium xerophyticum (Orchidaceae) are discussed; a full botanical description is provided.

SummaryNicotiana hesperis is illustrated from plants collected near the Billabong Roadhouse in north‐western Western Australia, which were cultivated at the Royal Botanic Gardens, Kew. Its taxonomic history, ecology, cytology and cultivation are discussed.

SummaryNicotiana megalosiphon is illustrated from plants cultivated at the Royal Botanic Gardens, Kew, which were grown from seeds collected near the bridge over the Mehi River near Moree, New South Wales, Australia. Its taxonomic history, ecology, cytology, etymology and cultivation are discussed. The two subspecies previously recognised within this taxon are here elevated to species level: N. megalosiphon (sensu stricto) and N. sessilifolia (comb. nov.).

SummaryNicotiana rosulata is illustrated from plants grown from seeds collected near Leonora in the Goldfields region of Western Australia. The plants were cultivated in the quarantine house of the Royal Botanic Gardens, Kew. The taxonomic history, ecology, cytology and cultivation of this species are discussed.

SummaryThe new species Nicotiana pila is described here from plants collected in the Little Sandy Desert of Western Australia. Seeds were germinated and plants cultivated at the Royal Botanic Gardens, Kew, which were used for the illustration. Its taxonomic history, ecology, cytology and cultivation are discussed.

SummaryNicotiana monoschizocarpa is illustrated from plants collected along the banks of the Daly River in the Northern Territory (Australia) and cultivated at the Royal Botanic Gardens, Kew. Its taxonomic history, ecology, cytology and cultivation are discussed.

SummaryThe new species Nicotiana insecticida, which is remarkable in its insect trapping abilities, is described here. It is illustrated from plants that were grown from seeds collected near the Minilya Roadhouse on the Northwest Coastal Highway in Western Australia, Australia. They were cultivated at the Royal Botanic Gardens, Kew. Its distinguishing features, taxonomy, ecology, cytology and cultivation are discussed.

SummaryNicotiana gascoynica is newly described and illustrated from plants collected in the Gascoyne region of Western Australia and cultivated at the Royal Botanic Gardens, Kew. Its discovery, ecology, cytology and cultivation are discussed.

SummaryNicotiana gossei is the preferred species of Nicotiana used for chewing by native Australians. It was previously a widely traded commodity. We here describe and illustrate this formerly economically important species from plants collected in the Northern Territory of Australia and cultivated at the Royal Botanic Gardens, Kew. Its ecology, traditional uses, cytology and cultivation are discussed.

SummaryNicotiana excelsior is a species restricted to central Australia. It is illustrated here from plants grown at the Royal Botanic Gardens, Kew, from seeds collected at Kata‐Tjuta‐Uluru National Park in the Northern Territory. It is a very attractive species and makes an excellent horticultural subject. Its ecology, etymology, traditional use and cultivation are discussed.

SummaryNicotiana umbratica is described and illustrated from plants collected from the Pilbara Region of Western Australia and cultivated at the Royal Botanic Gardens, Kew. Its ecology, etymology, cytology and cultivation are discussed.

SummaryNicotiana stenocarpa has long been considered a synonym of N. rosulata subsp. rosulata, to which it is only distantly related. It grows in the Goldfields area of Western Australia, often sympatrically with N. rosulata subsp. rosulata. The plant illustrated here was collected on the Leonora–Agnew Road in Western Australia and cultivated at the Royal Botanic Gardens, Kew. Its ecology, cytology and cultivation are discussed.