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Eulophia obtusa | |
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With bloomed flower in Bangladesh | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Epidendroideae |
Genus: | Eulophia |
Species: | E. obtusa |
Binomial name | |
Eulophia obtusa | |
Synonyms [1] | |
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Eulophia obtusa, a showy and distinctive species of orchid, popularly known as the ground orchid, recorded from Bangladesh, [2] North India and Nepal (Sourav, M.S.H, et al. 2017). This orchid growing in seasonally in grassland. It is a grass associated orchid species. A Bangladesh based renowned botanist and ornithologist Md Sharif Hossain Sourav [3] [4] [5] first described this rare species from Bangladesh in 2017 (Sourav, M.S.H, et al. 2017). There are only three collections in the Kew Herbarium dates from 1902, which suggests that it is quite a rare species. It is assessed as critically endangered (CR) [2] in Bangladesh according to the IUCN Red Listing criteria. Very recently this species was rediscovered in India after 118 years. [3]
Terrestrial, seasonally deciduous herb, bearing underground corms. Corm white, dome-shaped, 2.5 – 3.1 cm wide and 3.3 – 5.5 cm high, lying 10 – 20 cm below ground, bearing vermiform, white roots. Shoots 1 – 5-leaved, usually bifoliate, the basal part formed by sheaths enveloping the base of the inflorescence as well as the leaf-bases. Leaves appearing with the inflorescence, grass-like, 35 – 50 cm long, 0.15 – 0.5 cm wide, linear, slightly plicate, apex acuminate, midrib prominent, sheathing at base. Column 8 mm long, with a short foot. [2]
The only known site of Eulophia obtusa in Bangladesh is situated in the high Barind tract, [2] one of the major agro-ecological regions comprising about 79% of Godagari upazila. The vegetation is composed of grasses like Imperata cylindrica and Saccharum spontaneum as well as herbs and shrubs, including Amorphophallus margaritifer , [6] Amorphophallus paeoniifolius , Boerhavia diffusa , Chrozophora rottleri , Colocasia esculenta , Commelina benghalensis , Croton bonplandianus , Cyanotis cristata , Cyperus sp., Digera muricata , Euphorbia hirta , Ficus hispida , Kyllinga microcephala , Leucas lavandulifolia , Lippia alba , Parthenium hysterophorus , Phyllanthus virgatus , Solanum villosum , Uraria picta , and others. In North India, Eulophia obtusa has been found in freshwater swamps (Deva & Naithani 1986). The elevations have not been recorded for the collections we have seen, but they are probably all from below 200 m above sea level.
Flowering: June – July; fruiting: not seen, but local informants stated that they had seen the plants in fruit. [2]
The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe. Also known as the arum family, members are often colloquially known as aroids. This family of 114 genera and about 3,750 known species is most diverse in the New World tropics, although also distributed in the Old World tropics and northern temperate regions.
Amorphophallus is a large genus of some 200 tropical and subtropical tuberous herbaceous plants from the Arum family (Araceae), native to Asia, Africa, Australia and various oceanic islands. A few species are edible as "famine foods" after careful preparation to remove irritating chemicals. The genus includes the Titan arum of Indonesia, which has the largest inflorescence of any plant in the genus, and is also known as the 'corpse flower' for the pungent odour it produces during its flowering period, which can take up to seven years of growth before it occurs.
Eulophia, commonly known as corduroy orchids, is a genus of about two hundred species of flowering plants in the orchid family, Orchidaceae. Most Eulophia orchids are terrestrial but some are deciduous while others are evergreen. They either have an underground rhizome or pseudobulbs on the surface and those species with leaves have them on the end of a fleshy stem. The flowers are arranged on a thin flowering spike, the flowers having sepals which are larger than the petals. The genus is widely distributed but most species are found in Africa and Asia, usually growing in shady places with grass or shrubs in forests.
Grammatophyllum speciosum, also called giant orchid, tiger orchid, sugar cane orchid or queen of the orchids, is a species of orchid native to Laos, Myanmar, Thailand, Vietnam, Borneo, Indonesia and Malaysia. It has also been recorded in the Philippines, New Guinea and the Solomon Islands. It is listed by the Guinness Book of World Records as the world's tallest orchid, with specimens recorded up to 7.62 metres (25 ft) in height.
Arundina graminifolia is a species of orchid and the sole accepted species of the genus Arundina. This tropical Asiatic genus extends from Myanmar, India, Sri Lanka, Nepal, Thailand, Vietnam, the Ryukyu Islands, Malaysia, Singapore, China to Indonesia, the Philippines and New Guinea. It has become naturalized in Réunion, Fiji, French Polynesia, Micronesia, the West Indies, Costa Rica, Panama, Belize, and Hawaii. It is also called bamboo orchid.
Eulophia andamanensis is an orchid found to occur among the Andaman and Nicobar group of Islands (off the east coast of India and also in the north-western tip of Langkawi island in Malaysia.The occurrence of this ground orchid in Andaman Islands is restricted to some isolated pockets of certain islands and rare. Living collections of this taxon from the Andaman Islands is under ex situ conservation outside the islands at the Field Gene Bank of Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Trivandrum, India. It is a pre-tsunami accession.
Amorphophallus paeoniifolius, the elephant foot yam or whitespot giant arum, is a tropical plant native to Island Southeast Asia. It is cultivated for its edible tubers in Southeast Asia, South Asia, Madagascar, New Guinea, and the Pacific islands. Because of its production potential and popularity as a vegetable in various cuisines, it can be raised as a cash crop.
Dudleya multicaulis is a succulent plant known by the common name manystem liveforever or many-stemmed dudleya. This Dudleya is endemic to southern California, where it is rare and seriously threatened as its habitat is altered by humans. Many occurrences of this species have been extirpated. This species is characterized by a few short, fingerlike cylindrical leaves with pointed tips, and its erect peduncle, which is topped with a branching inflorescence bearing up to 15 flowers on each long, thin branch. The flowers, which appear in late spring, have pointed yellow petals and long stamens. It is usually found on heavy clay or rocky soils and outcrops.
Paphiopedilum insigne is an Asian species of slipper orchid and the type species of the genus Paphiopedilum. Its name is derived from the Latin insigne, meaning 'badge of honor' due to the magnificent flower. In the 19th century it was very popular among European and American orchid growers, causing it to become very rare in the wild due to over collecting. There are many varieties of it and hybrids with it.
Amorphophallus titanum, the titan arum, is a flowering plant in the family Araceae. It has the largest unbranched inflorescence in the world. The inflorescence of the talipot palm, Corypha umbraculifera, is larger, but it is branched rather than unbranched. A. titanum is endemic to rainforests on the Indonesian island of Sumatra.
Geodorum, commonly known as shepherds' crooks or 地宝兰属 , is a genus of eight species of flowering plants in the orchid family, Orchidaceae. They are deciduous, terrestrial herbs with underground pseudobulbs, broad, pleated leaves and small to medium-sized, tube-shaped or bell-shaped flowers on a flowering stem with a drooping end. Species in this genus are found in southern Japan, tropical Asia, Australia and islands of the southwest Pacific Ocean.
.
Milla biflora, Mexican star, is a species of flowering plant native to Arizona, New Mexico, Texas, Mexico, Honduras and Guatemala, where it grows at 1,000–2,700 m (3,300–8,900 ft) elevation. It is perennial, growing from a 1–2 cm (0.4–0.8 in) corm, and flowering in summer. Inflorescences of 1–9 white flowers are borne on scapes 4–55 cm (1.6–21.7 in) long. The 2–10 leaves are each 1 mm (0.04 in) wide and half to equally as long as the scape. The fruits are ovoid capsules, 1.5–2 cm (0.6–0.8 in) long.
Calopogon barbatus, the bearded grass-pink, is a species of orchid native to the southeastern United States, from Louisiana to North Carolina.
Oeceoclades longebracteata is a species of terrestrial orchid in the genus Oeceoclades that is endemic to southwestern and south-central Madagascar. It was first described by the French botanists Jean Marie Bosser and Philippe Morat in 2001. The type specimen was collected in 1970 by Jean Marie Bosser from dry forest undergrowth near Tsaramasao, 20 km (12 mi) south of Sakaraha. The specific epithet longebracteata refers to the long bracts found along the inflorescence.
Amorphophallus margaritifer is a species of plant in the arum family Araceae, native from India to Myanmar.
Arenga westerhoutii is a single-stemmed, evergreen palm found in tropical rainforest. It grows up to 12 meters tall and is one of the largest species in the genus Arenga. The unbranched stem is about 40cms in diameter. The palm has ornamental value. It is distributed in Bangladesh, India (Assam), Cambodia, East Himalaya, Laos, Malaya, Myanmar, and Thailand.
Moḥammad Abū Bakr Ṣiddīque al-Qurayshī was a Bengali Islamic scholar and the inaugural Pir of Furfura Sharif in West Bengal. He is regarded by his followers, who are scattered across eastern India and Bangladesh, as a mujaddid (reviver) of Islam in the region, due to his significant contributions in religious propagation via the establishment of mosques and madrasas, publication of newspapers and education development in neglected areas. He was the founding president of the sociopolitical Anjuman-i-Wazin-i-Bangla organisation, which advocated for causes such as the Khilafat Movement and Pakistan Movement. Siddique died in 1943, and his shrine is greatly venerated as one of West Bengal's most prominent Sufi centres.
Eulophia nuda, the spectacular eulophia, is a species of corduroy orchid found in tropical and subtropical Asia to the Western Pacific.
Nesaruddin Ahmad was a Bengali Islamic scholar, spiritual reformer, educationist and writer. He was the main disciple of Furfura Sharif's Mohammad Abu Bakr Siddique in eastern Bengal. Ahmad was the inaugural Pir of Sarsina, having founded the Sarsina Darbar Sharif and Darussunnat Kamil Madrasa in 1915, one of the largest Islamic institutions in South Bengal and the first major alia madrasah after Calcutta. Ahmad was among the leading Islamic leaders in colonial Barisal, and his influence extended across Bengal. The Nesarabad Upazila of Bangladesh has been named after him.