Josef Bogner

Rhaphidophora hayi is a species of flowering plant in the arum family Araceae, native to Queensland and New Guinea. It is an appressed or shingling semi-epiphytic vining plant that grows in wet tropical forests.

Orontioideae is a subfamily of flowering plants in the family Araceae. The subfamily consists of three genera namely, Lysichiton (one to two species of skunk cabbage from North America and Asia), Orontium (golden club, one living species from eastern North America and two extinct species known from fossils), and Symplocarpus (several species of skunk cabbage from North America and Asia). Characteristics of Orontioideae include medium-sized pollen grains and subterranean stems. Species in the subfamily have a base chromosome number of X=13.

Zamioculcadoideae is a subfamily of flowering plants in the family Araceae that consists of two genera, Zamioculcas and Gonatopus. It was proposed in 2005 by Bogner and Hesse after molecular studies indicated the need for the subfamily. There are also some genetic indications that Stylochaeton should be included in the subfamily.

Philodendron rugosum is a species of plant in the family Araceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.

Crinum calamistratum is an aquatic angiosperm native to Cameroon. It is known by the common names of narrow crinum or African onion plant. The species was first discovered by botanist H. Gregory from a population near Kumba, Cameroon in 1948, and was described by Josef Bogner and Hermann Heino Heine in 1987.

Amorphophallus napalensis is a species in the family Araceae known from the Himalayan regions of Bhutan, Nepal and India. They belong to the Candarum section in which the spathe is convoluted below, oblong to oblong-ovate or ovate-lanceolate and the spadix shorter than the spathe with styles 2-4 times the length of the ovary. The spathe opens at dusk and is visited by a number of species of beetle which are attracted by the odour of methyl mercaptan. Beetles of the genus Parastasia were the commonest visitors in Nagaland.

Nephthytis swainei is a species of flowering plants in the family Araceae, native to tropical West Africa (Ivory Coast, Ghana, Congo-Brazzaville, Gabon, Cameroon).

Cercestis mirabilis is a perennial herb that can grow up to 3.3 m (11 ft) tall. It is an obligate climber, which means that it requires support to grow. The stem is about 2.5 cm (0.98 in) thick and can climb up to a height of 9 m (30 ft), rooting as it climbs. The juvenile leaves are saggitate with white markings. The adult leaves are about 60 cm (24 in) long, simple, broad, and glabrous, with a terete petiole that is 25–60 cm (9.8–23.6 in) long and grooved at the base in the adult plant. It is native to tropical Africa.

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Alloschemone inopinata is a species of flowering plant in the genus Alloschemone of the arum family Araceae. It was once included in Scindapsus, but was re-classified info Alloschemone.

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Hottarum truncatum is a species of flowering plant in the arum family, Araceae. It is the sole species in genus Hottarum. It is a subshrub endemic to the Malaysian state of Sarawak on the island of Borneo.

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Xanthosoma paradoxum is a species of flowering plant in the family Araceae indigenous to Colombia. Initially described as Caladium paradoxum, it was later transferred to the Xanthosoma genus due to its strong affinity with other Xanthosoma species. This species is characterized by its disc-like, coherent styles with stigmas as broad as the ovary, pollen in monads, and entire leaf blades.

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Carlephyton glaucophyllum is a species of arum endemic to Madagascar.

Arophyteae is a tribe in the family Araceae. It contains three genera Colletogyne, Carlephyton, and Arophyton. All species in Arophyteae are endemic to Madagascar.

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