Uvariastrum pierreanum

Last updated

Uvariastrum pierreanum
Uvariastrum pierreanum.jpg
Color photograph of Uvariastrum pierreanum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Uvariastrum
Species:
U. pierreanum
Binomial name
Uvariastrum pierreanum

Uvariastrum pierreanum is a species of plant in the Annonaceae family. It is native to Cameroon, the Central African Republic, the Democratic Republic of the Congo, Equatorial Guinea, Gabon, Ghana, Guinea, the Ivory Coast, Liberia, Nigeria, Sierra Leone and the Republic of the Congo. [2] Adolf Engler, the botanist who first formally described the species, named it after the French botanist Jean Baptiste Louis Pierre. [3]

Contents

Description

It is a tree reaching 20–25 meters in height. The young, light brown branches are sparsely hairy to hairless, and become hairless and brown-grey with maturity. Its narrowly elliptical to egg-shaped to oblong, papery to slightly leathery leaves are 6-16 by 2–4.5 centimeters. The leaves have wedge-shaped bases and tapering tips, with the tapering portion 0.7-2 centimeters long. The margins of the leaves are wavy. The leaves are sparsely hairy to hairless. The leaves are dark green on their upper surface and light green below. The leaves have 7-12 pairs of secondary veins emanating from their midribs. Its petioles are 2-4 by 1-1.5 millimeters, and hairless to sparsely hairy, with an indistinct groove on their upper side. Its Inflorescences occur in clusters of 1–3 on branches or are more numerous when positioned on the trunk. Each inflorescence has 1 flower. Each flower is on a sparsely to densely hairy pedicel that is 15-50 by 1-1.5 millimeters. The pedicels have a hairy, broadly oval, basal bract that is 6 by 6 millimeters. The base of the bract is flat and the tip is pointed. Its flowers have 3 oval sepals that are 1.5-2.5 by 1-2 centimeters. The sepals have sparse woolly hair on both surfaces. Its 6 petals are arranged in two rows of 3. The yellow to grey-yellow, elliptical, outer petals are 2.5-4 by 0.8-1.5 centimeters. The bases of the outer petals narrow and the tips are pointed. The upper surface of the outer petals are sparsely hairy, and the lower surfaces are densely hairy. The yellow to grey-yellow, elliptical inner petals are 1.5-2.8 by 0.6-1.5 centimeters. The upper surface of the inner petals are sparsely hairy, and the lower surfaces are densely hairy. The inner petals are narrower at the base and pointed at the tips. The flowers have numerous pink-red, hairy stamens that are 4-6 by 1 millimeters. The flowers have up to 5-10 carpels that are 4-6 by 1.5-2 millimeters, and densely hairy. The carpels have bilobed stigma that are 2 millimeters in diameter, and densely hairy. Each carpel has up to 24-35 ovules. The fruit occur in clusters of 3–5 on sparsely hairy to hairless pedicles that are 15-50 by 4-6 millimeters. The pale blue-green to brown, globe-shaped to elliptical fruit are 9-10 by 4-5 centimeters and are densely covered in light green woolly hairs. Each fruit has up to numerous dark brown to black, flat, elliptical seeds that are 15-25 by 10-15 by 5-9 millimeters. [4]

Reproductive biology

The pollen of Uvariastrum pierreanum is shed as permanent tetrads. [5] [4]

Distribution and habitat

It has been observed growing in sandy or rocky soils in lowland primary and secondary rain forests or in gallery forests at altitudes up to 600 meters. [4]

Uses

Essential oil extracts from stem-bark and leaf oils have been described as having antimalarial activity in laboratory tests with Plasmodium falciparum. [6]

Related Research Articles

Annona stenophylla is a species of plant in the family Annonaceae. It is native to Tanzania and Zambia. Adolf Engler and Ludwig Diels, the German botanists who first formally described the species, named it after its narrow leaves.

Asteranthe asterias is a species of plant in the family Annonaceae. It is native to Kenya and Tanzania. Spencer Le Marchant Moore, the English botanist who first formally described the species using the basionym Uvaria asterias, did not explicitly explain the epithet, but was likely referencing the star-like appearance of its flower’s petals.

Hexalobus bussei is a species of plant in the family Annonaceae. It is native to Cameroon. Ludwig Diels, the German botanist who first formally described the species, named it after another German botanist, Walter Busse, who collected the sample that Diels examined.

<i>Hexalobus monopetalus</i> Species of plant in the family Annonaceae

Hexalobus monopetalus is a species of plant in the family Annonaceae with the common name baboon's breakfast. It is native to Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Senegal, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zaire and Zimbabwe. Achille Richard, the French botanist who first formally described the species, using the basionym Uvaria monopetala, named it after its petals which are fused at their base.

Monodora crispata is a species of plant in the family Annonaceae. It is native to Cameroon, Equatorial Guinea, Gabon, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, and Sierra Leone. Heinrich Gustav Adolf Engler, the German botanist who first formally described the species, named it after its curled petal margins.

<i>Monodora minor</i> Species of plant in the family Annonaceae

Monodora minor is a species of plant in the family Annonaceae. It is native to Mozambique and Tanzania. Heinrich Gustav Adolf Engler and Ludwig Diels, the German botanists who first formally described the species, do not explicitly explain the specific epithet but it is among the smaller members of the genus which includes species that reach heights of 30-40 meters.

<i>Mischogyne elliotiana</i> Species of plant

Mischogyne elliotiana is a species of plant in the Annonaceae family. It is native to Cameroon, Gabon, Ghana, Guinea-Bissau, Ivory Coast, Liberia, Nigeria, Sierra Leone, and Zaire. Adolf Engler and Ludwig Diels, the German botanists who first formally described the species using the basionym Uvaria elliotiana, named it after George Scott-Elliot the botanist who collected the specimen they examined.

<i>Neostenanthera gabonensis</i> Species of plant in the family Annonaceae

Neostenanthera gabonensis is a species of plant in the family Annonaceae. It is native to Cabinda Province, Cameroon, Equatorial Guinea, Gabon, Ghana, Ivory Coast, Liberia, and The Republic of the Congo. Heinrich Gustav Adolf Engler and Ludwig Diels, the German botanists who first formally described the species, using the basionym Oxymitra gabonensis, named it after Gabon where the specimen they examined was found near a site they identified as Sibange-Farm.

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

Pseuduvaria cymosa is a species of plant in the family Annonaceae. It is native to Peninsular Malaysia. James Sinclair, the Scottish botanist who first formally described the species using the synonym Pseuduvaria macrophylla var. cymosa, named it after its branched inflorescences which are called cymes.

Pseuduvaria dielsiana is a species of plant in the family Annonaceae. It is native to New Guinea. Carl Lauterbach, the German botanist who first formally described the species using the synonym Goniothalamus dielsianus, named it in honor of Ludwig Diels, another German botanist who also worked on taxa from New Guinea.

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

Pseuduvaria latifolia is a species of plant in the family Annonaceae. It is native to Java. Carl Ludwig Blume, the German botanists who first formally described the species using the synonym Bocagea latifolia, named it after its broad leaves.

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

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.

<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 mulgraveana</i> Species of plant in the family Annonaceae

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 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.

<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 villosa</i> Species of plant in the family Annonaceae

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.

<i>Uvariastrum hexaloboides</i> Species of flowering plant

Uvariastrum hexaloboides is a species of plant in the Annonaceae family. It is native to Tanzania, Zambia and Zaire. Robert Elias Fries, the botanist who first formally described the species using the basionym Uvaria hexaloboides, named it after a different species Hexalobus monopetalus which he thought its flowers and vegetative parts resembled.

<i>Uvariastrum insculptum</i> Species of flowering plant

Uvariastrum insculptum is a species of plant in the Annonaceae. It is native to Cameroon, Gabon, Ghana, Ivory Coast, Liberia, Nigeria, and the Republic of the Congo. Adolf Engler and Ludwig Diels, the botanists who first formally described the species using the basionym Uvaria insculpta, named it after the secondary veins on its leaves which are distinctly sunken.

<i>Xylopia arenaria</i> Species of flowering plant

Xylopia arenaria is a species of plant in the Annonaceae family. It is native to Kenya, and Tanzania. Adolf Engler, the botanist who first formally described the species, named it after its growth in sandy places.

References

  1. ↑ Cosiaux, A.; Couvreur, T.L.P.; Erkens, R.H.J. (2019). "Uvariastrum pierreanum". IUCN Red List of Threatened Species . 2019: e.T133044933A133045006. doi: 10.2305/IUCN.UK.2019-3.RLTS.T133044933A133045006.en . Retrieved 17 May 2022.
  2. ↑ "Uvariastrum pierreanum Engl". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved May 17, 2022.
  3. ↑ Engler, A (1901). Monographieen afrikanischer Pflanzen-Familien und -Gattungen [Monographs of African Plant Families and Genera] (in German and Latin). Vol. 6. Leipzig: W. Engelmann. p. 32.
  4. 1 2 3 Couvreur T (2014). "Revision of the African genus Uvariastrum (Annonaceae)". PhytoKeys (33): 1–40. doi: 10.3897/phytokeys.33.5907 . PMID   24526846. S2CID   21866374.
  5. ↑ Couvreur, Thomas L. P.; Botermans, Marleen; van Heuven, Bertie Joan; van der Ham, Raymond W. J. M. (2008). "Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera". Grana. 47 (3): 185–210. doi:10.1080/00173130802256913. ISSN   0017-3134.
  6. ↑ Boyom, F. F., Ngouana, V., Kemgne, E. A. M., Zollo, P. H. A., Menut, C., Bessiere, J. M., Gut, J., Rosenthal, P. J. (2011). "Antiplasmodial volatile extracts from Cleistopholis patens Engler & Diels and Uvariastrum pierreanum Engl. (Engl. & Diels) (Annonaceae) growing in Cameroon". Parasitology Research. 108 (5): 1211–1217. doi: 10.1007/s00436-010-2165-7 . PMC   3077741 . PMID   21107862. S2CID   6797624.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.