Haptanthus, a New Dicotyledonous Genus from Honduras

Goldberg, Aaron; S., Cirilo Nelson

doi:10.2307/2419047

Cited by 11 publications

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“…Haptanthus hazlettii , an enigmatic Central American tree, was one of the remaining exceptions. It was discovered, nearly accidentally, in 1980 ( Doust and Stevens, 2005 ) and described as a new species and genus in 1989 ( Goldberg and Nelson, 1989 ). In 2001, the new monotypic family Haptanthaceae was proposed for this genus ( Nelson, 2001 ).…”

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confidence: 99%

Haptanthus story: Rediscovery of enigmatic flowering plant from Honduras

Shipunov

Shipunova

2011

American J of Botany

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confidence: 99%

Haptanthus story: Rediscovery of enigmatic flowering plant from Honduras

Shipunov

Shipunova

2011

American J of Botany

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“…The characters examined by Goldberg and Nelson (1989) plus those considered in the present paper, and examination of additional literature and herbarium specimens of several families, enable us to suggest assigning Haptanthaceae to a position near Violales and Euphorbiales. Like Flacourtiaceae, Haptanthaceae has parietal placentation with several ovules per placenta, whereas Euphorbiaceae has axile placentation with one or two ovules per placenta.…”

Section: Discussionmentioning

confidence: 70%

“…Pistil published by Goldberg and Nelson (1989), but since the reproductive organs are most meaningful to most taxonomists working primarily at the family level, it is repeated to show the complete picture in one place. The pistil has three united carpels.…”

Section: Resultsmentioning

confidence: 99%

“…In attempting to assign Haptanthus to a family, Goldberg and Nelson (1989) considered Capparaceae, Flacourtiaceae, Lacistemataceae, Euphorbiaceae, Buxa- Goldberg and Nelson (1989) interpreted each stamen as a staminate flower, since each is usually subtended by a bracteole. But the staminate structure could also be interpreted as a single staminate flower, an androphore with stamens arising at different levels, and with a minute bracteole usually subtending each stamen.…”

Section: Discussionmentioning

confidence: 99%

“…The genus Haptanthus was published by Goldberg and Nelson (1989). The type was collected April 8, 1980 in Atlantida Department, in northern Honduras, on the Caribbean Sea, five km southeast of Mataras (15Њ31ЈN, 87Њ24ЈW) in a light gap of a rain forest near midslope of a fairly steep east-facing cliff, at 300 m elevation.…”

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Taxonomy of <I>Haptanthus</I> Goldberg & C. Nelson

Goldberg

Alden

2005

issn: 0363-6445

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Haptanthus is known from only a single collection despite several attempts to recollect it. Because of its unique inflorescence and flowers, and the specimen's lack of fruit, the original authors were unable to assign it to an existing family. After 12 years Nelson described it as the type of a new family, Haptanthaceae. The original authors mainly described and illustrated the gross morphology, pistil anatomy, and pollen of Haptanthus. In attempting to assign it to a family, eight familial placements were considered and reasons were given for their rejection. In the present paper additional characters of the leaf, stem, and pistil, mainly anatomical, are described and illustrated. Most of the wood characters are archaic (primitive).Haptanthus has a suite of characters indicating that it is probably wind-pollinated. Consideration of all the characters studied to date, and examination of additional literature and herbarium specimens of several families, enable us to suggest Flacourtiaceae and Euphorbiaceae as the closest relatives of Haptanthaceae. Recently, Flacourtiaceae has been suggested by another author. Key characters of the three families are compared in a table.

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Class Magnoliopsida (Dicotyledons)

2009

Flowering Plants

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Haptanthus, a New Dicotyledonous Genus from Honduras

Cited by 11 publications

References 1 publication

Haptanthus story: Rediscovery of enigmatic flowering plant from Honduras

Haptanthus story: Rediscovery of enigmatic flowering plant from Honduras

Taxonomy of <I>Haptanthus</I> Goldberg & C. Nelson

Class Magnoliopsida (Dicotyledons)

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