Pseuduvaria coriacea

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Pseuduvaria coriacea
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Pseuduvaria
Species:
P. coriacea
Binomial name
Pseuduvaria coriacea

Pseuduvaria coriacea is a species of plant in the family Annonaceae. [1] It is native to New Guinea. [2] Yvonne Chuan Fang Su and Richard M.K. Saunders, the botanists who first formally described the species, named it after its leathery (coriaceus in Latin) leaves. [3] [4]

Contents

Description

It is a tree reaching 5 meters in height. Its elliptical to oval, thick, leathery leaves are 24-44 by 6-14 centimeters. The leaves have heart-shaped bases and rounded to tapering tips. The leaves are hairless on their upper and lower surfaces except for the midrib which is densely hairy on the lower surface. The leaves have 16-26 pairs of secondary veins emanating from their midribs. Its densely hairy petioles are 4-9 by 2–5.5 millimeters with a groove on their upper side. Its Inflorescences are organized on short peduncles. Each inflorescence has up to 1-2 flowers. Each flower is on a densely hairy pedicel that is 4-7 by 0.5-2 millimeters. The flowering pedicels have a medial, densely hairy bract that is 1.5 millimeters long.The flowers are unisexual or hermaphroditic. Its flowers have 3 triangular sepals, that are 3.5 by 3 millimeters. The sepals are hairless on their upper surface, densely hairy on their lower surface, and have fine hairs on their margins. Its 6 petals are arranged in two rows of 3. The oval to elliptical, outer petals are 4-6 by 5–6.5 millimeters with hairless upper surfaces and densely hairy lower surfaces. The outer petals are dark purple-brown. The oval inner petals have a 0.5-1 millimeter long claw at their base and a 4-7 by 4–7.5 millimeter blade. The inner petals have pointed tips and flat bases. The red-orange inner petals are smooth on their upper surface and densely hairy on their lower surface. Male flowers have up to 70 stamens that are 0.6-0.9 by 0.5-0.9 millimeters. Hermaphroditic flowers have up to 23 stamens that are 0.6-0.9 by 0.5-0.9 millimeters and up to 11 carpels that are 2-2.4 by 1-.14 millimeters. Each carpel has 4-10 ovules arranged in two rows. Fruit are on sparsely hairy pedicels that are 4-11 by 2.4 millimeters. The fruit occur in clusters of 4-8 monocarps. The mature monocarps are oval to ellipsoidal and 13-30 by 8-30 millimeters. The mature, orange monocarps are smooth and covered in hair. Each monocarp has around 4-10 seeds arranged in two rows. The smooth, hemi-spherical seeds are 9.5-13.5 by 6–9.5 by 2.5-5 millimeters. [4]

Reproductive biology

The pollen of P. coriacea is shed as permanent tetrads. [5]

Habitat and distribution

It has been observed growing in lowland forests, at elevations from 60 to 900 meters. [4]

Related Research Articles

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<i>Pseuduvaria latifolia</i> species of plant in the family Annonaceae

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<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.

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 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.

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Pseuduvaria oxycarpa is a species of plant in the family Annonaceae. It is native to Sulawesi. Sijfert Hendrik Koorders, the Dutch botanist who first formally described the species, named it after the pointed tips of its fruit.

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Pseuduvaria parvipetala is a species of plant in the family Annonaceae. It is native to Borneo and Sumatra. Yvonne Su and Richard Saunders, the botanists who first formally described the species, named it after its small petals.

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.

Pseuduvaria pulchella 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 using the basionym Orophea pulchella, chose a specific epithet that means “beautiful little” in Latin, but he did not specify to which aspect of the plant he was referring.

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Pseuduvaria sessilifolia is a species of plant in the family Annonaceae. It is native to New Guinea. James Sinclair, the botanist who first formally described the species, named it after its stalkless leaves which lack petioles.

References

  1. "Pseuduvaria clemensiae Y.C.F.Su & R.M.K.Saunders". Catalogue of Life. Species 2000. n.d. Retrieved June 29, 2021.
  2. "Pseuduvaria coriacea Y.C.F.Su & R.M.K.Saunders". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved June 29, 2021.
  3. Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN   9780881926279.
  4. 1 2 3 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.
  5. 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.