Mitrephora winitii | |
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Mitrephora winitii | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Magnoliids |
Order: | Magnoliales |
Family: | Annonaceae |
Genus: | Mitrephora |
Species: | M. winitii |
Binomial name | |
Mitrephora winitii | |
Mitrephora winitii is a species of plant in the family Annonaceae. It is native to Myanmar and Thailand. [2] [3] William Grant Craib, the British botanist who first formally described the species, named it after Phya Winit Wanandor, the Thai botanist who collected the specimen that Craib examined. [4] In the Prachuap Khiri Khan province of Thailand it is commonly referred to as Mahaphrom.
It is a tree reaching 10 meters in height. Its leathery, oval to lance-shaped leaves are 11–13.5 by 5–5.6 centimeters with blunt tips. The leaves are smooth on their upper surfaces while their undersides lighter in color and hairy. The base of its leaves are rounded to heart-shaped and their tips are pointed to slightly tapered. The leaves have 11–13 pairs of secondary veins emanating from their midribs. Its petioles are 4.5–6.5 by 2–2.5 millimeters and covered in fine soft hairs. Its inflorescences are composed of up to 3 flowers on a rachis that is densely covered in long, soft, pale brown hairs. Each flower is born on a fleshy pedicel that is 10–16 by 2–3.5 millimeters and densely covered in fine brown hairs. Oval bracts at the base of pedicels are 7–7.5 by 5–8 millimeters while those at the top are 8–10 by 8–10 millimeters. Its flowers have 3 oval sepals that are 7.5–10 by 7.5–11 millimeters. The outer surfaces of the sepals have dense, brown hairs; the inner surfaces are hairless or nearly so. Its 6 petals are arranged in two rows of 3. The white to cream-colored, oval, outer petals are 3.7–4 by 2.2–3 centimeters with pointed tips. The outer surfaces of the outer petals have dense, fine, brown hairs; the inner surfaces have sparse fine hairs that are denser toward the tip. The inner petals are white to cream-colored with purple stripes and are 2.8–3.2 by 2.2–2.5 centimeters. The inner petals are covered in sparse, fine hairs on both surfaces. Its stamens are 2–2.2 by 0.8–1 millimeters. Its flowers have up to 10 carpels that are 2.4–2.6 by 0.8–1 millimeters. Its ovaries have 16–18 ovules. Its fruit are found in clusters of up to 10. The oblong fruit are 1.4–1.8 by 1.1–1.4 centimeters. The fruit are smooth and densely covered in fine pale brown hairs that lay flat against the surface. The fruit are born on 11 by 3.5 millimeter pedicels that are sparsely covered in fine, hairs. The fruit have 4–6 seeds that are 10 by 6.5–7 millimeters. [5] [6]
The pollen of M. winitii is shed as permanent tetrads. [7]
It has been observed growing dry evergreen forests with rocky landscapes at elevations up to 20 meters. [6]
Bioactive compounds extracted from its leaves and twigs have been reported be cytotoxic in tests with cultured human cancer cell lines. [8]
Mitrephora wangii is a species of plant in the family Annonaceae. It is native to China and Thailand.
Goniothalamus calvicarpus is a species of plant in the family Annonaceae. It is native to China, Laos and Thailand. William Grant Craib, the British botanist who first formally described the species, named it after its hairless fruit.
Goniothalamus expansus is a species of plant in the family Annonaceae. It is native to Thailand and Vietnam. William Grant Craib, the British botanist who first formally described the species, named it after its expanded stigmas.
Goniothalamus latestigma is a species of plant in the family Annonaceae. It is native to Myanmar and Thailand. Cecil Ernest Claude Fischer, the botanist who first formally described the species, named it after its broad stigmas.
Goniothalamus nitidus is a species of plant in the family Annonaceae. It is native to Borneo. Elmer Drew Merrill, the American botanist who first formally described the species, named it after its shining leaves.
Goniothalamus ridleyi is a species of plant in the family Annonaceae. It is native to Borneo, Peninsular Malaysia, Sumatra and Thailand. George King, who first formally described the species, named it after the English botanist Henry Nicholas Ridley who collected the specimen King examined.
Goniothalamus rongklanus is a species of plant in the family Annonaceae. It is native to Thailand. Richard Saunders and Piya Chalermglin first formally described the species and named it after Phu Hin Rong Kla National Park in Thailand.
Mitrephora alba is a species of plant in the family Annonaceae. It is native to Peninsular Malaysia. Henry Nicholas Ridley, the English botanist who first formally described the species, named it after its white flowers.
Mitrephora glabra is a species of plant in the family Annonaceae. It is native to Borneo. Rudolph Scheffer, the Dutch botanist who first formally described the species, named it after its hairless leaves and mature twigs.
Mitrephora heyneana is a species of plant in the family Annonaceae. It is native to India and Sri Lanka. Joseph Dalton Hooker and Thomas Thomson, the British botanists who first formally described the species under the basionym Orophea heyneana, named it after Benjamin Heyne a German botanist who collected and described many plant species from India.
Mitrephora keithii is a species of plant in the family Annonaceae. It is native to Myanmar, Peninsular Malaysia and Thailand. Henry Nicholas Ridley, the English botanist who first formally described the species, named it in honor of Dr. A. Keith who collected the sample that Ridley examined.
Mitrephora macclurei is a species of plant in the family Annonaceae. It is native to China, Laos and Vietnam. Aruna Weerasooriya and Richard Saunders, the botanists who first formally described the species, named it after Floyd Alonzo McClure of Lingnan University, who collected the holotype specimen that they examined.
Mitrephora calcarea is a species of plant in the family Annonaceae. It is native to Laos and Vietnam. Aruna Weerasooriya and Richard M.K. Saunders, the botanists who provided the first valid formal description of the species, named it after the limy soil it grows in. The name follows a prior invalid account by Suzanne Jovet-Ast, which lacked a Latin description.
Mitrephora macrocarpa is a species of plant in the family Annonaceae. It is native to Sulawesi. Friedrich Anton Wilhelm Miquel, the Dutch botanist who first formally described the species using the basionym Orophea macrocarpa, named it after its large fruit.
Mitrephora pallens is a species of plant in the family Annonaceae. It is native to Vietnam. Suzanne Jovet-Ast, the French botanist who first formally described the species, named it after its pale flowers.
Mitrephora petelotii is a species of plant in the family Annonaceae. It is native to Vietnam. Aruna Weerasooriya and Richard Saunders, the botanists who first formally described the species, named it in honor of the French botanist Paul Alfred Pételot, who collected the holotype specimen that they examined.
Mitrephora polypyrena is a species of plant in the family Annonaceae. It is native to Java, the Lesser Sunda Islands, and Myanmar. Carl Ludwig Blume, the German botanist who first formally described the species using the basionym Uvaria polypyrena, named it after the many stones or seeds in its fruit.
Mitrephora maingayi is a species of plant in the family Annonaceae. It is native to Bangladesh, Borneo, Cambodia, Laos, Peninsular Malaysia, Myanmar, Sumatra, and Vietnam. Joseph Hooker and Thomas Thomson, the British botanists who first formally described the species, named it in honor of Alexander Carroll Maingay, the British botanist who collected the specimen they examined.
Mitrephora tomentosa is a species of plant in the family Annonaceae. It is native to Bangladesh, Cambodia, Laos, Myanmar, Thailand, and Vietnam. Joseph Hooker and Thomas Thomson, the British botanists who first formally described the species, named it after the dense covering of hair on its young branches, leaves and flowers.
Pseuduvaria coriacea is a species of plant in the family Annonaceae. It is native to New Guinea. Yvonne Chuan Fang Su and Richard M.K. Saunders, the botanists who first formally described the species, named it after its leathery leaves.