Pseuduvaria hylandii | |
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Herbarium specimen of Pseuduvaria hylandii. [1] | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Magnoliids |
Order: | Magnoliales |
Family: | Annonaceae |
Genus: | Pseuduvaria |
Species: | P. hylandii |
Binomial name | |
Pseuduvaria hylandii Jessup | |
Pseuduvaria hylandii is a species of plant in the family Annonaceae. [2] It is native to Australia. [3] L.W. Jessup, the botanists who first formally described the species, named it after Bernard Hyland an Australian botanist who collected the specimen he examined. [4]
It is a tree reaching 13 meters in height. The young, dark brown to black branches are sparsely covered in hairs and also have many lenticels. Its elliptical, membranous to papery leaves are 13-24 by 3-6.5 centimeters. The leaves have pointed to wedge-shaped bases and tapering tips, with the tapering portion 8-18 millimeters long. The leaves are hairless on their upper and lower surfaces. The leaves have 8-12 pairs of secondary veins emanating from their midribs. Its hairless petioles are 5-13 by 1.5-3 millimeters with a narrow groove on their upper side. Its Inflorescences occur in groups of 2-3 on branches, and are organized on indistinct peduncles. Each inflorescence has a solitary flower. Each flower is on a sparsely hairy pedicel that is 4-12 by 0.5-1 millimeters. The pedicels are organized on a rachis up to 5 millimeters long that have 3-6 bracts. The pedicels have a medial, slightly hairy bract that is 0.5-1.5 millimeters long. Its flowers are unisexual. Its flowers have 3 oval sepals, that are 1.5-3 by 3-3.5 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 slightly pink, oval to elliptical, outer petals are 3.5-5.5 by 4-5 millimeters with hairless upper surfaces and very densely hairy lower surfaces. The inner petals are maroon with purple highlights at their edges. The diamond-shaped, inner petals have a 5-7 millimeter long claw at their base and a 10.5-14.5 by 5.5-7 millimeter blade. The inner petals have pointed bases and tips. The inner petals are sparsely to densely hairy on their upper surface and densely hairy on their lower surfaces. The inner petals have two, irregularly shaped, smooth, raised glands on their upper surface. Male flowers have up to 67 stamens that are 1-2 by 0.9-1 millimeters. Female flowers have 23-29 carpels that are 1.5-2.3 by 0.6-1 millimeters. Each carpel has 1-3 ovules arranged in a row. The fruit occur in clusters of 12-16 on slightly hairy pedicles that are 11-16 by 1.5-2.5 millimeters. The orange, mature fruit are elliptical to egg-shaped and 9-17 by 7-12 millimeters. The fruit are smooth, and sparsely to densely hairy. Each fruit has up to 2 spherical seeds that are 8-10 by 7.5-8.5 by 4.5-6.5 millimeters. The seeds are very wrinkly. [5]
The pollen of P. hylandii is shed as permanent tetrads. [6]
It has been observed growing in rocky and clay soils in vine forests at elevations of 400-780 meters. [5]
Oils extracted from its leaves contain high levels of caryophyllene and humulene. [7]
Pseuduvaria galeata is a species of plant in the family Annonaceae. It is a tree endemic to Peninsular Malaysia. James Sinclair, the Scottish botanist who first formally described the species, named it after the dome formed by inner petals shaped like a helmet.
Pseuduvaria taipingensis is a species of plant in the family Annonaceae. It is a tree endemic to Peninsular Malaysia. James Sinclair, the Scottish botanist who first formally described the species, named it after Taiping a city in Perak, Malaysia where the specimen he examined was collected.
Pseuduvaria costata is a species of plant in the family Annonaceae. It is native to New Guinea. Rudolph Scheffer, the Dutch botanist who first formally described the species using the basionym Orophea costata, named it after its prominently ribbed fruit.
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 glabrescens 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 using the synonym Pseuduvaria mulgraveana var. glabrescens, named it after the underside of its leaves which have the quality of becoming hairless as they mature.
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.
Pseuduvaria lignocarpa 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 the woody wall of its fruit.
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 megalopus is a species of plant in the family Annonaceae. It is native to New Guinea. Karl Schumann, the German botanist who first formally described the species using the synonym Petalolophus megalopus, named it after the large wings that extend downwards from the underside of the inner petals to form a foot of dark red tissue that resembles carrion and is thought to attract fly pollinators.
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.
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 obliqua is a species of plant in the family Annonaceae. It is native to Borneo. Yvonne Su and Richard Saunders, the botanists who first formally described the species, named it after its slightly uneven leaf bases.
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 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.
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.
Pseuduvaria setosa is a species of plant in the family Annonaceae. It is native to Peninsular Malaysia. George King, the botanist who first formally described the species under the basionym Orophea setosa, named it after the bristly hairs on its leaves and petioles.
Pseuduvaria unguiculata is a species of plant in the family Annonaceae. It is endemic to The Philippines. Adolph Daniel Edward Elmer, the American botanist who first formally described the species, named it after its clawed inner petals.
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.