Dianthoveus: A New Genus of Cyclanthaceae

Hammel, Barry E.; Wilder, George J.

doi:10.2307/2399344

Cited by 19 publications

(18 citation statements)

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“…3). In accordance with previous studies (Harling, 1958; Hammel & Wilder, 1989; Eriksson, 1994b), the monophyly of Carludovica is indicated by various synapomorphic characters, e.g. the four‐segmented leaf blades (character 2) and an irregularly splitting infructescence (character 6).…”

Section: Resultssupporting

confidence: 89%

“…as adaptations to different yet unobserved selective pressures). Yet it is also highly unlikely, considering the quality and quantity of characters that support the monophyly of Carludovica (Harling, 1958; Hammel, 1986; Hammel & Wilder, 1989; Eriksson, 1994b; Harling et al ., 1998). In light of the abundance of incongruence, no possible rearrangement of the relations among the species of Carludovica is expected to affect the conclusions from the topology‐based analyses.…”

Section: Discussionmentioning

confidence: 99%

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Analysing the history of the derelomine flower weevil-Carludovica association (Coleoptera: Curculionidae; Cyclanthaceae)

Franz¹

2004

Biological Journal of the Linnean Society

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The evolutionary history of the interaction among species of derelomine flower weevils (Coleoptera: Curculionidae: Derelomini) and the Panama-hat palm Carludovica (Cyclanthaceae) is analysed with emphasis on the congruence of (1) topologies and (2) character state transformations in each of the Neotropical clades. For this purpose cladistic analyses are complemented with host plant records, natural history information and selected morphological studies of the associated taxa. The interaction is specialized, involving pollination, oviposition into the inflorescences and the predation of seeds (particularly within Systenotelus). As results from a range of standard coevolutionary methods of analysis indicate, however, events of colonization, extinction and independent (non-reciprocal) speciation have been abundant throughout the history of the association. At the same time it is possible to specify the homology and succession of characters among species of derelomines and Carludovica and interpret them as reciprocal adaptations to attack and protect the seeds, respectively. It is argued that -in light of the limited evolutionary stability of many insect-plant interactions -the question of coevolution is most effectively addressed by combining information from the character-and topology-based approaches.

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Section: Resultssupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Analysing the history of the derelomine flower weevil-Carludovica association (Coleoptera: Curculionidae; Cyclanthaceae)

Franz¹

2004

Biological Journal of the Linnean Society

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“…The Cyclanthaceae presently comprise more than 200 described species which are all restricted to the Neotropics (Hammel and Wilder, 1989). There is agreement that they are a derived family within the Arecidae and that they are related to palms, Araceae, and Pandanaceae.…”

Section: Floral Biology and Pollination Of Curludovicu ~Almutu (Cvclamentioning

confidence: 99%

Flowers and Beetles in the South American Tropics

Gottsberger

1990

Botanica Acta

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Examples of beetle pollination in the South American tropics are given. The case histories refer to representatives of the families Cyclanthaceae, Annonaceae, and Araceae. In most cases the cantharophilous syndrome does not seem to be the result of coevolution but of a one-sided adaptation of flowers to the behavior, necessities, and sense-capacities of beetle species. It is emphasized that cantharophily may not necessarily be an indication of ancientness of a flower/ insect relationship. Besides primitive angiosperms, there are derived and modern groups which, in theirpollination, are specialized for beetles.Carludovica palmata (Cyclanthaceae) is pollinated by small curculionids which are attracted by odors in the early morning hours. Annona coriacea (Annonaceae) and Philodendron selloum (Araceae) are pollinated by large dynastid scarab beetles in the evening hours. In all three species thermogenesis occurs. Although belonging to widely separate systematic groups, Annona flowers and Philodendron inflorescences have a similar pollination biology, which indicates that their adaptations to beetles are the result of convergent evolutionary developments.

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“…69 Militia began firing deliberately at Marine positions. 70 The populace in Beirut no longer felt that the Marines were impartial.…”

Section: Discussionmentioning

confidence: 99%