Adansonia perrieri | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malvales |
Family: | Malvaceae |
Genus: | Adansonia |
Species: | A. perrieri |
Binomial name | |
Adansonia perrieri | |
Adansonia perrieri, or Perrier's baobab, is a critically endangered species of deciduous tree, in the genus Adansonia . This species is endemic to northern Madagascar. [1] It has been documented in only 10 locations, including Ankarana, Ampasindava, Loky Manambato and Montagne d'Ambre protected areas. Most populations, however, are outside of protected areas. Each location has few individuals (the largest subpopulation has 43 trees). With an estimated population of fewer than 250 mature individuals and ongoing habitat decline due to fire and cutting for charcoal and timber or clearing for mining, this species has been assessed by IUCN as Critically Endangered. [1] There are three species of baobab found in northern Madagascar, all sharing the common name "bozy". [2]
Perrier's baobab is a medium to large deciduous tree, growing to 30 m tall, occurring in evergreen rainforests and forming an important component of dry deciduous forest. [1] The trunk is roughly cylindrical and the bark a smooth, pale grey. Baobab trees have two types of shoots – long, green vegetative ones, and stout, woody reproductive ones. [2]
This is a deciduous tree, with leaves throughout the wet season (November to April) but none in the dry season. Leaves are palmately compound in mature trees, with 5 to 11 leaflets (usually 9 or more leaflets per leaf on reproductive shoots). [2] Seedlings and regenerating shoots may have simple leaves. The transition to compound leaves comes with age and may be gradual. Stipules occur at the base of the leaves, are triangular or linear and up to 15 mm long. In most baobabs, stipules are soon shed, but they are persistent in A. perrieri. [2]
Baobabs have large, showy flowers that in Perrier's baobab emerge with or just before the leaves, flowering November to December. Flowers are born near the tips of reproductive shoots, in the axils of the leaves. There is usually only a singe flower in an axil, but sometimes flowers occur in pairs. The flowers are reproductive for a maximum of 15 hours. They open around dusk; opening so quickly that movement can be detected by the naked eye and are faded by the next morning. [2] The flower is made up of an outer 5-lobed calyx, and an inner ring of petals set around a fused tube of stamens. [2] The calyx is green with short stiff hairs outside and cream or pinkish with long, soft hairs inside. [2] It is made up of 5 lobes that in bud are joined almost to the tip. As the flower opens, the calyx lobes split apart and become coiled or bent back (reflexed) at the base of the flower. Sometimes the lobes do not separate cleanly, distorting the shape of the flower as they bend back. The calyx lobes remain fused at the base, leaving a feature (calyx tube) that has nectar-producing tissue and fits tightly around the petal base. [2] The flowers have a long, narrow central tube (staminal tube) made up of fused filaments (stalks of stamens), with around 200 unfused filaments above. A densely hairy ovary is enclosed in the staminal tube with a long style tipped with a red or pink stigma emerging from the filaments. Petals are set near the base of the staminal tube and are pale yellow, becoming darker with age. [2] Flowers of Perrier's baobab are pollinated primarily by long-tongued hawkmoths ( Coelonia solani and Xanthopan morganii ). [2]
The fruits are large (up to 25 cm long), oblong to egg-shaped and berry-like. They are ripe in October and November. They have a tough 8–9 mm thick outer wall and hold kidney-shaped seeds in a dry, pulpy matrix. The fruits are buoyant and at least in some populations may be dispersed by floating along water courses. [2]
Fruits are collected for their edible pulp, [2] and trees are cut for charcoal or timber. [1]
The specific Latin epithet of perrieri refers to the French botanist Joseph Marie Henry Alfred Perrier de la Bâthie (1873–1958), who studied plants in Madagascar. [3] It was first described and published in Notul. Syst. (Paris) Vol.16 on page 66 in 1960. [4]
Adansonia is a genus made up of eight species of medium-to-large deciduous trees known as baobabs. They are placed in the Malvaceae family, subfamily Bombacoideae. They are native to Madagascar, mainland Africa, and Australia. The trees have also been introduced to other regions such as Asia. The generic name honours Michel Adanson, the French naturalist and explorer who described Adansonia digitata. The baobab is also known as the "upside down tree", a name that originates from several myths. They are among the most long-lived of vascular plants and have large flowers that are reproductive for a maximum of 15 hours. The flowers open around dusk, opening so quickly that movement can be detected by the naked eye, and are faded by the next morning. The fruits are large, oval to round and berry-like and hold kidney-shaped seeds in a dry, pulpy matrix.
Paulownia is a genus of seven to 17 species of hardwood tree in the family Paulowniaceae, the order Lamiales. They are present in much of China, south to northern Laos and Vietnam and are long cultivated elsewhere in eastern Asia, notably in Japan and Korea.
Lycium chinense is one of two species of boxthorn shrub in the family Solanaceae. Along with Lycium barbarum, it produces the goji berry ("wolfberry"). Two varieties are recognized, L. chinense var. chinense and L. chinense var. potaninii. It is also known as Chinese boxthorn, Chinese matrimony-vine, Chinese teaplant, Chinese wolfberry, wolfberry, and Chinese desert-thorn.
Calyceraceae is a plant family in the order Asterales. The natural distribution of the about sixty species belonging to this family is restricted to the southern half of South America. The species of the family resemble both the family Asteraceae and the Dipsacaceae.
Bombacoideae is a subfamily of the mallow family, Malvaceae. It contains herbaceous and woody plants. Their leaves are alternate, commonly palmately lobed, with small and caducous stipules. The flowers are hermaphroditic and actinomorphic; the calyx has 5 sepals united at the base, which are not accompanied by an epicalyx (involucel). The corolla has 5 free petals and an androecium of numerous stamens, typically with free filaments which are not fused in a staminal tube (column). The pollen is smooth and the ovary superior and pluricarpellate. The fruits are schizocarpous or capsular.
Adansonia digitata, the African baobab, is the most widespread tree species of the genus Adansonia, the baobabs, and is native to the African continent and the southern Arabian Peninsula. These are long-lived pachycauls; radiocarbon dating has shown some individuals to be over 2,000 years old. They are typically found in dry, hot savannas of sub-Saharan Africa, where they dominate the landscape and reveal the presence of a watercourse from afar. They have traditionally been valued as sources of food, water, health remedies or places of shelter and are a key food source for many animals. They are steeped in legend and superstition. In recent years, many of the largest, oldest trees have died, possibly due to climate change. Common names for the baobab include monkey-bread tree, upside-down tree, and cream of tartar tree.
Adansonia madagascariensis or Madagascar baobab is a small to large deciduous tree in the family Malvaceae. It is one of six species of baobab endemic to Madagascar, where it occurs in the Madagascar dry deciduous forests.
Adansonia rubrostipa, commonly known as fony baobab, is a deciduous tree in the Malvaceae family. Of eight species of baobab currently recognized, six are indigenous to Madagascar, including fony baobab. It is endemic to western Madagascar, found in Baie de Baly National Park, south. It is associated with well-drained soils and is found in dry and spiny forests. It occurs in the following protected areas: Amoron'i Onilahy, Baie de Baly, Menabe Antimena, Mikea, Namoroka, Ranobe PK 32, Tsimanampesotse, Tsimembo Manambolomaty, Tsinjoriake.
Malus coronaria, also known by the names sweet crabapple or garland crab, is a North American species of Malus (crabapple).
Adansonia grandidieri is the biggest and most famous of Madagascar's six species of baobabs. It is sometimes known as Grandidier's baobab or giant baobab. In French it is called Baobab malgache. The local name is renala or reniala. This tree is endemic to the island of Madagascar, where it is an endangered species threatened by the encroachment of agricultural land. This is the tree found at the Avenue of the Baobabs.
Adansonia suarezensis, the Suarez baobab, is an endangered species of Adansonia endemic to Madagascar. It is locally called "bozy", the common name used for all baobabs in northern Madagascar.
The tree species Sorbus americana is commonly known as the American mountain-ash. It is a deciduous perennial tree, native to eastern North America.
Adansonia za is a species of baobab in the genus Adansonia of the family Malvaceae. It was originally named in French as anadzahé. Common names in Malagasy include bojy, boringy, bozy, bozybe, ringy, and za, the last of which gives the plant its specific epithet. Eight Adansonia species are recognized, with six endemic to Madagascar. Adansonia za is the most widespread of the Madagascar endemics.
Paeonia delavayi is a low woody shrub belonging to the peonies, that is endemic to China. The vernacular name in China is 滇牡丹. In English it is called Delavay's tree peony, Delavay peony, Dian peony, and dian mu dan. It mostly has red brown to yellow, nodding flowers from mid May to mid June. The light green, delicate looking deciduous leaves consist of many segments, and are alternately arranged on new growth.
Agalinis paupercula, commonly known as the smallflower false foxglove, is a hemiparasitic annual plant native to the eastern parts of the United States and Canada. Found in open, moist areas, its purple flowers are borne on a 30-to-70-centimeter stem, and bloom in August and September. The species has often been treated as a variety of Agalinis purpurea, the purple false foxglove, and preliminary genetic evidence suggests that the two are, in fact, a single species.
Otholobium nitens is an upright, densely branched shrub of up to 1.5 m high that is assigned to the Pea family. It has one to many initially softly hairy stems, alternately set, clover-like, upright leaves crowding the new shoots, and heads consisting of 3 pea-like, dark purple to mauve flowers on short peduncles in the axils of the leaves on short side-shoots. This species is an endemic of the mountains between Ceres and Hottentots Holland in the Western Cape province of South Africa. It mostly flowers between October and late December.
Otholobium saxosum is a small shrublet of up to 20 cm (7.9 in) high that has been assigned to the Pea family, with branches upright or horizontal at the base with rising tips. It has sessile, clover-like leaves and white, pea-like flowers that grow in triplets in the axils of the upper leaves of new, short side shoots. The species is only known from Garcia's Pass, Western Cape province of South Africa. Flowering occurs in October and November.
Otholobium spissum is a dense, tangled, much branched shrub of up to 185 cm (73 in) high that is assigned to the Pea family. It has dull green, clover-like leaves and white, pea-like flowers with a streaky, triangular, purple nectar guide. The species grows in renosterveld in the central mountains of the Western Cape province of South Africa. This species flowers in July and August.
Otholobium lucens is a shrub of up to 60 cm (24 in) high that is assigned to the pea family. It has alternately set clover-like leaves crowding on the new growth, while older parts have lost their leaves. The white, pea-like flowers occur with 3 or 6 together in the leaf axils. This rare species is an endemic of the Swartberg mountains in the Western Cape province of South Africa. It flowers between July and February.
Otholobium piliferum is a small, softly hairy shrublet of up to 30 cm (12 in) high that has been assigned to the Pea family, with branches horizontal at the base with rising tips. It regrows from the underground rootstock after fire destroys the vegetation. It has clover-like leaves on short stalks and white, pea-like flowers flushed with mauve that grow in triplets in the axils of the upper leaves of the new shoots. The species is only known from near Makhanda, Eastern Cape province of South Africa. Flowers have been seen in September and January. This is a very rare species about which little is known and which is likely threatened with extinction.