David Mark Johnson

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Guatteria liesneri is a species of plant in the Annonaceae family. It is endemic to Venezuela.

Guatteria atabapensis is a species of plant in the Annonaceae family. It is endemic to Venezuela.

Callaeum antifebrile is a South American jungle vine of the family Malpighiaceae which occurs predominantly throughout the Upper Amazon basin, and less frequently along the Lower Amazon. Occasionally a component in ayahuasca decoctions, it is used as a folk medicine in some parts of Brazil, often as an antifebrile (anti-fever) remedy.

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Disepalum plagioneurum (synonym Polyalthia pingpienensis) is a species of plant in the Annonaceae family. It is found in China, Laos and Vietnam.

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Trigynaea triplinervis is a species of plant in the family Annonaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.

Sphaerocoryne lefevrei, known in Khmer as rumduol (រំដួល [rum.ɗuəl]) and in Thai as lamduan (ลำดวน), is a flowering plant of the Annonaceae family, native to Southeast Asia. It is commonly cultivated as an ornamental plant, and is the national flower of Cambodia and the provincial flower of Thailand's Sisaket province. Some sources treat it as the same species as the similar S. affinis.

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Mwasumbia is a monotypic genus of flowering plants belonging to the family Annonaceae. The only known species is Mwasumbia alba. It is native to Tanzania. The genus name of Mwasumbia is in honour of Leonard B. Mwasumbi (b.1938), a Tanzanian botanist, plant taxonomist, specialist in Tanzanian flora, and former head of the Herbarium at the University of Dar es Salaam. The genus was circumscribed by Thomas Louis Pierre Couvreur and David Mark Johnson in Syst. Bot. vol.34 (Issue 2) on page 268 and 270 in 2009. The Latin specific epithet alba (of the species) means “white”, referring to the white

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