| 词条 | Mitrephora pallens |
| 释义 |
|genus = Mitrephora |species = pallens |authority = Jovet-Ast }}Mitrephora pallens is a species of plant in the family Annonaceae. It is native to Vietnam.[1] DescriptionIt is a tree reaching 2 to 7 meters in height. Its leathery, oval-shaped leaves are 2.5-8 by 2-5 centimeters and rounded at their tips. The leaves are smooth and shiny on their upper surfaces, while their undersides are slightly hairy. Its petioles are 3-6 millimeters long. Its flowers are arranged in groups of 3 or fewer on a rachis. Each flower is on a fleshy, densely hairy pedicel 12-13 millimeters long. Its flowers have 3, triangular sepals that are 2-3.5 by 2.5-3 millimeters. The outside of the sepals are densely hairy, while their inner surfaces are smooth. Its 6 petals are arranged in two rows of 3. The outer petals are white, 12.5 by 6 millimeters, and come to a point at their tip. Both surfaces of the outer petals are slightly hairy. The inner petals are white with red highlights and 11 by 8 millimeters. The outside surface of the inner petals is slightly hairy while the inner surface is dense with long hairs. It has numerous stamens.[2][3] Reproductive biologyThe pollen of M. pallens is shed as permanent tetrads.[3] References1. ^{{cite web |url= http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:74030-1|title= Mitrephora pallens Jovet-Ast|author= |date=n.d. |website=Plants of the World Online |publisher=The Trustees of the Royal Botanic Gardens, Kew |access-date=March 25, 2019}} {{Taxonbar}}{{annonaceae-stub}}2. ^{{cite journal |last1=Jovet-Ast |first1=S. |date=1940 |title=Anonacees Nouvelles D’Indochine |url= https://www.biodiversitylibrary.org/item/7375 |language=French and Latin |journal= Notulae systematicae |volume=9 |pages=73-88}} 3. ^1 {{cite journal |last1=Weerasooriya |first1=Aruna D. |last2=Saunders |first2=Richard M. K. |title=The Genus Mitrephora (Annonaceae) in Cambodia, Laos, and Vietnam|journal=Systematic Botany|volume=30|issue=2|year=2005|pages=248–262|issn=03636445|doi=10.1600/0363644054223602}} 3 : Mitrephora|Flora of Vietnam|Plants described in 1940 |
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