Mitrephora tomentosa

Mitrephora maingayi is a species of plant in the family Annonaceae. It is native to Bangladesh, Cambodia, Laos, Myanmar, Thailand, and Vietnam.[1] Joseph Hooker and Thomas Thomson, the British botanists who first formally described the species, named it after the dense hair (tōmentōsus in Latin) covering its young branches, leaves and flowers.[2]

Mitrephora tomentosa
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Mitrephora
Species:
M. tomentosa
Binomial name
Mitrephora tomentosa
Synonyms

Kinginda thorelii (Pierre) Kuntze
Kinginda tomentosa (Hook.f. & Thomson) Kuntze
Mitrephora bousigoniana Pierre
Mitrephora collinsiae Craib
Mitrephora edwardsii Pierre
Mitrephora thorelii Pierre

Description

It is a tree reaching 20–40 feet in height. Its leathery leaves are 3-7 by 1.75-3 inches and come to a point at their tips. The leaves are smooth and shiny on their upper surfaces, while their undersides are hairy. Its petioles are 0.3 inches long. Its flowers are arranged in cymes opposite the leaves. Each flower is on a pedicel 0.25-0.6 inches long. Its flowers have 3, oval-shaped sepals, 0.3 inches long. The sepals are hairy on their outer surfaces and smooth inside. Its 6 petals are arranged in two rows of 3. The thick, hairy, oval-shaped outer petals are 1 inch long and come to a point at their tip. The inner petals are shorter than the outer petals. Its hairy carpels are 1 inch long when ripe and bear 2 seeds.[2][3]

Reproductive biology

The pollen of M. tomentosa is shed as permanent tetrads.[4]

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References
  1. "Mitrephora tomentosa Hook.f. & Thomson". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved April 3, 2019.
  2. Hooker, Joseph Dalton; Thomson, Thomas (1855). Flora indica: being a systematic account of the plants of British India, together with observations on the structure and affinities of their natural orders and genera (in English and Latin). London: W. Pamplin.
  3. King, George (1893). Annals of the Royal Botanic Garden, Calcutta. 4. Calcutta: Bengal Secretariat Press. p. 111.
  4. Weerasooriya, Aruna D.; Saunders, Richard M. K. (2005). "The Genus Mitrephora (Annonaceae) in Cambodia, Laos, and Vietnam". Systematic Botany. 30 (2): 248–262. doi:10.1600/0363644054223602. ISSN 0363-6445.


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