Pseuduvaria setosa

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Pseuduvaria setosa
Orophea setosa.jpg
Botanical illustration of Pseuduvaria setosa using the synonym Orophea setosa
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Pseuduvaria
Species:
P. setosa
Binomial name
Pseuduvaria setosa
Synonyms

Orophea setigeraRidl.
Orophea setosaKing

Pseuduvaria setosa is a species of plant in the family Annonaceae. [2] It is native to Peninsular Malaysia. [3] George King, the botanist who first formally described the species under the basionym Orophea setosa, named it after the bristly (setosus in Latin) hairs on its leaves and petioles. [4] [5]

Contents

Description

It is a tree reaching 7 meters in height. The young, brown to dark brown branches are very densely hairy, but become hairless as they mature. Its elliptical to egg-shaped, papery to slightly leathery leaves are 7.5-26 centimeters. The leaves have rounded to heart-shaped bases and tapering tips, with the tapering portion 4-19 millimeters long. The leaves are sparsely to densely hairy on their upper and lower surfaces and fringed with long hairs at their margins. The midribs of the leaves are variably hairy on their upper side, and very densely covered in erect bristly hairs on their lower side. The leaves have 10-18 pairs of secondary veins emanating from their midribs. Its petioles, when present, are 5 by 0.7-3 millimeters, very densely covered in erect bristly hairs, and have a broad groove on their upper side. Its solitary Inflorescences occur on branches, and are organized on very densely hairy peduncles that are 1-3 by 0.3-0.8 millimeters. Each inflorescence has 1-2 flowers. Each flower is on a very densely hairy pedicel that is 8-24 by 0.3-0.6 millimeters. The pedicels are organized on a rachis up to 5 millimeters long that have 2-3 bracts. The pedicels have a medial, very densely hairy bract that is 0.5-1.5 millimeters long. Its flowers are unisexual. Its flowers have 3 triangular sepals that are fused at their base. The sepals are 0.8-2 by 1-2 millimeters. The sepals are hairless on their upper surface, densely hairy on their lower surface, and hairy at their margins. Its 6 petals are arranged in two rows of 3. The cream-colored to pale yellow, oval to elliptical, outer petals are 2-4 by 2.4 millimeters with hairless upper and densely hairy lower surfaces. The heart-shaped inner petals have a 2.5-4 millimeter long claw at their base and a 5.5-9 by 3.5-6.5 millimeter blade. The claw and base of the blade are red, turning to cream-colored or pale yellow at the tip. The inner petals have slightly heart-shaped bases and pointed tips. The inner petals are densely hairy on their upper and lower surfaces. The inner petals have 1-2 distinct mushroom-shaped, smooth glands on their upper surface. Male flowers have 60-76 stamens that are 0.8-1 by 0.5-0.8 millimeters. Female flowers have 3-4 carpels that are 1.3-2.4 by 0.8-1.3 millimeters. Each carpel has 2-8 ovules arranged in a row. Female flowers can have up to 10 sterile stamens, but they do not occur in all flowers. The fruit occur in clusters of 1-7 on sparsely hairy pedicles that are 10-30 by 0.5-2.5 millimeters. The pedicels are attached to densely hairy peduncles that are 4 by 1-1.5 millimeters. The yellow-green, globe-shaped fruit are 6-25 by 6-20 millimeters. The fruit are smooth, and very densely hairy. Each fruit has 1-8 hemispherical to lens-shaped seeds that are 10-13 by 4.5-10.5 by 3.5-7.5 millimeters. The seeds are very wrinkly. [6]

Reproductive biology

The pollen of P. setosa is shed as permanent tetrads. [7]

Habitat and distribution

It has been observed growing on limestone granite substrates, in lowland evergreen forests at elevations of 50-400meters. [6]

Uses

Bioactive compounds, including the alkaloid liriodenine, extracted from its aerial tissues have been observed in laboratory tests to have antimycobacterial activity against Mycobacterium tuberculosis , antimalarial activity against Plasmodium falciparum , and cytotoxicity to cultured human cancer cell lines. [8]

Related Research Articles

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Pseuduvaria kingiana is a species of plant in the family Annonaceae. It is native to the Malay Peninsula. Yvonne Chuan Fang Su and Richard Saunders, the botanists who first formally described the species, named it after Sir George King, the British botanist who first collected the species.

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Pseuduvaria luzonensis is a species of plant in the family Annonaceae. It is native to The Philippines. Elmer Drew Merrill, the American botanist who first formally described the species using the synonym Orophea luzoniensis, named it after Luzon in the Province of Battan, Philippines where the specimen he examined was collected along the Lamao River.

Pseuduvaria macgregorii is a species of plant in the family Annonaceae. It is native to The Philippines. Elmer Drew Merrill, the American botanist who first formally described the species, named it after Richard MacGregor the Australian ornithologist and plant collector who collected the specimen Merrill examined.

<i>Pseuduvaria macrocarpa</i> Species of plant in the family Annonaceae

Pseuduvaria macrocarpa is a species of plant in the family Annonaceae. It is native to The Maluku Islands and New Guinea. William Burck, the Dutch botanist who first formally described the species using the synonym Meiogyne macrocarpa, named it after its large fruit.

<i>Pseuduvaria macrophylla</i> Species of plant in the family Annonaceae

Pseuduvaria macrophylla is a species of plant in the family Annonaceae. It is native to Peninsular Malaysia, Sumatra and Thailand. Daniel Oliver, the English botanists who first formally described the species using the synonym Mitrephora macrophylla, named it after its large leaves.

Pseuduvaria mindorensis is a species of plant in the family Annonaceae. It is native to the Philippines. Yvonne Su and Richard Saunders, the botanists who first formally described the species, named it after the island of Mindoro where the specimen they examined was collected in the municipality of Puerto Galera.

Pseuduvaria mollis is a species of plant in the family Annonaceae. It is native to New Guinea. Otto Warburg, the German-Jewish botanists who first formally described the species using the basionym Goniothalamus mollis, named it after the soft hairs on its leaves and petals.

Pseuduvaria mulgraveana is a species of plant in the family Annonaceae. It is native to Australia. L.W. Jessup, the botanist who first formally described the species, named it after the Mulgrave River in Goldsborough, Queensland where the specimen he examined was collected.

Pseuduvaria multiovulata is a species of plant in the family Annonaceae. It is native to Myanmar. Cecil Fischer, the Indian botanist who first formally described the species using the basionym Mitrephora multiovulata, named it after its many ovuled ovaries.

Pseuduvaria guineensis is a species of plant in the family Annonaceae. It is native to New Guinea. James Sinclair, the Scottish botanist who first formally described the species, named it after New Guinea where the specimen he examined was collected near Kokoda.

Pseuduvaria pamattonis is a species of plant in the family Annonaceae. It is native to Borneo and the Philippines. Friedrich Miquel, the Dutch botanist who first formally described the species using the basionym Orophea pamattonis, named it after a mountain in Borneo called Gunung Pamaton.

Pseuduvaria philippinensis is a species of plant in the family Annonaceae. It is native to the Philippines. Elmer Drew Merrill, the botanist who first formally described the species, named it after the Philippines where the specimen he examined was collected in the Province of Quezon.

<i>Pseuduvaria reticulata</i> Species of plant in the family Annonaceae

Pseuduvaria reticulata is a species of plant in the family Annonaceae. It is native to Bangladesh, Borneo, Java, the Lesser Sunda Islands, Myanmar and Sumatra. Carl Ludwig Blume, the botanist who first formally described the species under the basionym Uvaria reticulata, named it after the net-like pattern of veins on the underside of its leaves.

<i>Pseuduvaria rugosa</i> Species of plant in the family Annonaceae

Pseuduvaria rugosa is a species of plant in the family Annonaceae. It is native to Java, Laos, the Lesser Sunda Islands, Peninsular Malaysia, Myanmar, the Nicobar Islands, Sumatra and Thailand. Carl Ludwig Blume, the botanist who first formally described the species under the basionym Uvaria rugosa, named it after its wrinkled fruit.

Pseuduvaria silvestris is a species of plant in the family Annonaceae. It is native to New Guinea. Ludwig Diels, the botanist who first formally described the species under the basionym Orophea silvestris, named it after the forested habitat the specimens he examined were found growing in near the Waria River.

Pseuduvaria villosa is a species of plant in the family Annonaceae. It is endemic to Australia. L.W. Jessup, the botanist who first formally described the species, named it after its leaves and branchlets which are shaggy with long soft hairs.

References

  1. ↑ Verspagen, N.; Erkens, R.H.J.; Daniels, A. (2021). "Pseuduvaria setosa". IUCN Red List of Threatened Species . 2021: e.T180646908A180646912. doi: 10.2305/IUCN.UK.2021-2.RLTS.T180646908A180646912.en . Retrieved 20 June 2022.
  2. ↑ "Pseuduvaria setosa (King) J. Sinclair". Catalogue of Life. Species 2000. n.d. Retrieved August 23, 2021.
  3. ↑ "Pseuduvaria setosa (King) J.Sinclair". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved August 23, 2021.
  4. ↑ Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN   9780881926279.
  5. ↑ King, George (1892). "Material for a Flora of the Malay Peninsula". The Journal of the Asiatic Society of Bengal. 61:pt.2 (1, 3): 80.
  6. 1 2 Su, Yvonne C.F.; Saunders, Richard M.K. (2006). Monograph of Pseuduvaria (Annonaceae). Systematic Botany Monographs. Vol. 79. American Society of Plant Taxonomists. pp. 1–204. JSTOR   25027955.
  7. ↑ Su, Yvonne C. F.; Saunders, Richard M. K. (2003). "Pollen structure, tetrad cohesion and pollen-connecting threads in Pseuduvaria (Annonaceae)". Botanical Journal of the Linnean Society. 143 (1): 69–78. doi: 10.1046/j.1095-8339.2003.00204.x . ISSN   1095-8339.
  8. ↑ Wirasathien, Lalita; Boonarkart, Chompunuch; Pengsuparp, Thitima; Suttisri, Rutt (2006). "Biological Activities of Alkaloids from Pseuduvaria setosa". Pharmaceutical Biology. 44 (4): 274–278. doi: 10.1080/13880200600714111 .
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