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Contributions to Floristics in New Guinea and Species Delimitation in the Wanang Forest Dynamics Plot.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Contributions to Floristics in New Guinea and Species Delimitation in the Wanang Forest Dynamics Plot./
作者:	Ezedin, Zacky.
面頁冊數:	1 online resource (586 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
標題:	Plant sciences. -
電子資源:	click for full text (PQDT)
ISBN:	9798379953546

Contributions to Floristics in New Guinea and Species Delimitation in the Wanang Forest Dynamics Plot.
Ezedin, Zacky.

Contributions to Floristics in New Guinea and Species Delimitation in the Wanang Forest Dynamics Plot. - 1 online resource (586 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--University of Minnesota, 2023.

Includes bibliographical references

Two new species of Ficus in New Guinea are described and a third species is resurrected to improve the classification of Ficus sect. Dammaropsis, sect. Sycidium, and sect. Papuasyce. Ficus sect. Dammaropsis is extraordinary in producing by far the world's largest known figs. New morphological, ecological, and molecular observations support recognising as separate species the lowland and highland forms of Ficus dammaropsis (Warb.) Diels sensu lato. The lowland form, described here as Ficus brusii Weiblen, is distinguished from the highland form by its much smaller figs that bear recurved, acuminate lateral bracts. The description of Ficus dammaropsis is amended to refer to the highland form with the world's largest fig and includes F. dammaropsis var. obtusa Corner. Evidence from DNA suggests pollination by distinct fig wasp species and reproductive isolation between Ficus brusii and F. dammaropsis. Ficus hystricicarpa Warb. (sect. Sycidium) is resurrected from synonymy under Ficus wassa Roxb. on account of its conspicuously warty and hispidulous syconia. Lastly, an ecological genetic study led to the discovery of a third species occupying an altitudinal contact zone between Ficus itoana Diels of hill forest and Ficus microdictya Diels of montane forest. These members of the New Guinea endemic Ficus sect. Papuasyce point to a rare evolutionary shift in the sexual system from functional dioecy to monoecy. Here we describe Ficus umbrae Ezedin & Weiblen on the basis of morphological intermediacy and molecular evidence to report the first functionally gynomonoecious Ficus species.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379953546Subjects--Topical Terms:

1179743
Plant sciences.
Subjects--Index Terms:

FloristicsIndex Terms--Genre/Form:

554714
Electronic books.

Contributions to Floristics in New Guinea and Species Delimitation in the Wanang Forest Dynamics Plot.
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