Pseuduvaria aurantiaca
Herbarium specimen of Pseuduvaria aurantiaca.[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Pseuduvaria
Species:
P. aurantiaca
Binomial name
Pseuduvaria aurantiaca
Synonyms

Orophea aurantiaca Miq.

Pseuduvaria aurantiaca is a species of plant in the family Annonaceae. It is endemic to New Guinea.[1] Friedrich Anton Wilhelm Miquel, the Dutch botanist who first formally described the species using the basionym Orophea aurantiaca, named it after its orange colored (aurantiacus, in Latin)[2] fruit.

Description

It is a tree that reaches 5 meters in height. Its branches have lenticels. Its leathery leaves are 14-19.5 by 5.5-7.5 centimeters and have pointed tips. The leaves are hairless when mature. The leaves have 12-18 pairs of secondary veins emanating from the central rib. Its petioles are 1.5-5 millimeters long with a groove on their upper side. Inflorescences are organized on slightly hairy peduncles 20-35 millimeters long. Each inflorescence consists of up to 10 flowers. Each flower is on a densely hairy pedicel 2-4 millimeters in length. The flowers are unisexual. Its flowers have 3 oval-shaped sepals, 0.8 by 1 millimeters, that have blunt tips. The outer surface of the sepals is densely hairy while the inside is smooth, and their margins have very fine hairs. Its 6 petals are arranged in two rows of 3. The outer petals are white or yellow-green and 2 by 2 millimeters. The outer petals are smooth on the inside and densely hairy on the outside. The inner petals have a 0.9 millimeter claw at their base and a 2-3.5 by 1.5-2 millimeter blade. The inner petals are smooth on their upper surface and densely hairy on their lower surface. Male flowers have up to 26 stamens that are 0.5-0.6 millimeters long. The gynoecium consists of 1-2 unfused carpels (monocarps). Fruit are attached to 30-40 millimeter peduncles by 8-9 millimeter pedicles. Mature monocarps are orange, hairy, wrinkly ellipsoids, 17-21 by 13-19 millimeters. Each monocarp has 6-8 wrinkly seeds, 8.5-13 by 6-8.5 millimeters.[3][4]

Reproductive biology

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

References

  1. 1 2 "Pseuduvaria aurantiaca (Miq.) Merr". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved May 23, 2019.
  2. ↑ Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
  3. ↑ Miquel, F.A.G. (1865). "Anonaceae Archipelagi indici". Annales Musei botanici lugduno-batavi. 2: 1–45.
  4. ↑ Su, Yvonne C.F.; Saunders, Richard M.K. (2006). Monograph of Pseuduvaria (Annonaceae). Systematic Botany Monographs. Vol. 79. American Society of Plant Taxonomists. p. 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.


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