Saturday 6 May 2023

Dipterocarpus macrocarpus Vesque

Local name: হলং (Hollong)
Scientific Name: Dipterocarpus macrocarpus Vesque
Family: Dipterocarpaceae
Recognition: State tree of Assam
Conservation status: Critically Endangered

General characteristics: Hollong is a large tree and plant height reach upto 45 meter. Tree trunk may be upto 6 meter in diameter. Young shoots and petioles are covered with reddish-brown hairs. Leaves are elliptic-oblong, shortly acuminate at apex with a size of  25 – 45 × 14 – 25 cm, membranous, glabrous when mature. Flowers usually solitary, 5.8 – 7.5 cm long. Calyx-tube turbinate, silky-pubescent inside, velvety-puberulous outside. Petals 5, subfalcately oblanceolate, ca 6.5 × 1.5 – 2 cm, membranous, imbricate pinkish. Stamens ca 30; filaments dilated at base; anthers oblong with a pair of tubercles at base. Ovary ovoid, 5 – 6 × 3 – 4 mm, silky-pubescent; style ca 1.5 cm long, tapering from the top of the ovary. Fruits ovoid, ca 5 × 3.5 cm with enlarged wing-like calyx lobes (Pagag & Singh).

Flowering & Fruiting: June – July and January – March

Range of Distribution: India, Myanmar, Indonesia, Malaysia, Thailand, Laos and Vietnam

Local distribution: This plant is widely distributed in Dihing patkai national Park, Dibrugarh district.

Economic Importance: The timber is used in construction of house, especially for planking. Wood used for plywood, internal construction work and also used as railway sleepers. Oleoresin from the tree used as lubricant and in soap works (Pagag & Singh).

Global conservation status: Plant is in IUCN Red Listed category and it is critically endangered.

Regional threat: Due to high demand of its timber and superior wood quality plant is under severe threat from local people. Illegal and over exploitation creates a substantial threat on the plant.  

References:

K. Pagag & S.K. Singh. Botanical Survey of India, Eastern Regional Centre, Shillong.

Scientific name of plants available at Namrup College campus

1.Botanical Name: Rhynchostylis retusa (L.) Blume

Family: Orchidaceae

Common name: Foxtail Orchid

Vernacular name in Assamese: Kopou phool

General characters: Epiphytic herb. It has an erect growth form and can grow up to 50 cm tall. The leathery leaves are recurved and deeply channeled. The flowers are borne on densely flowered, drooping racemes originating from the leaf axils. The flowers consist of white sepals and petals with pink blotches and a pink flower lip.

Traditional Knowledge: The inflorescence is used by Assamese girls to adorn their hair during the spring festival ‘Rongali Bihu’. Among the youths of Assam, this orchid is regarded as symbol of love, fertility and merriment. It is also used in marriage ceremony of the Assamese. Considering its importance the native of Assam grow this species in their home premises.

Medicinal Uses: Plant used in treatment of cuts and wounds.

Note: It is an endangered species.

 

2.Botanical Name: Mimusops elengi L.

Family: Sapotaceae

Common name: Spanish cherry

Vernacular name in Assamese: Bokul

General characters: Medium-sized evergreen tree. The leaves are glossy, dark green, oval-shaped, 5–14 cm (2.0–5.5 in) long, and 2.5–6 cm (0.98–2.36 in) wide. The flowers are cream, hairy, and scented. The fruits are fleshy, range in color between yellow and brown, and contain a large brown seed.

Uses: The yellow color pulp is edible. The bark, flowers, fruits, and seeds are used in Ayurvedic medicine in which it is purported to be astringent, cooling, anthelmintic, tonic, and febrifuge. It is mainly used for dental ailments such as bleeding gums, pyorrhea, dental caries, and loose teeth.

 

3.Botanical Name: Polyalthia longifolia (Sonn.) Thwaites

Family: Annonaceae

Common name: False Ashoka, Mast Tree, Indian Mast Tree, Weeping Mast Tree, Green Champa

Vernacular name in Assamese: Debdaru

General characters: A tall handsome evergreen tree, 12-20 m tall, with straight trunk, undivided, smooth brown greyish bark and slender branches, 1-2 m long, longer at the base up to touch the soil. Leaves are membranous, lanceolate, tapering to a fine point, shining, glabrous, margin undulate or wavy and gland-dotted

Uses: The leaves are used for ornamental decoration during festivals. The tree is a focal point in gardens. It have been widely used in folklore medicine for the treatment of rheumatic fever, gastrointestinal ulcer and generalized body pain.

 

4.Botanical Name: Mesua ferrea L.

Family: Calophyllaceae

Common name: Ceylon Ironwood

Vernacular name in Assamese: Nahor

General characters: The tree can grow over 30 meters tall. Trunk is straight and erect. Bark is smooth and ash reddish brown in color. Wood is red, hard and heavy. Leaves are 8.0-15.0 cm long, oblong-lanceolate, acute, red when young, afterwards shining above and glaucous, rounded at the base and with close inconspicuous veins.

Uses: Flowers are used in treating diseases like rheumatism, asthma, inflammation, fever, dyspepsia, renal diseases, dysentery, bleeding piles, a bacterial and fungal infection.

 

5.Botanical Name: Morus alba L.

Family: Moraceae

Common name: White mulberry

Vernacular name in Assamese: Nuni

General characters: A fast-growing shrub or moderate-sized tree with a fairly cylindrical, up to 35 m high and 1.8 m in girth, without buttresses; bark dark greyish-brown, rough with vertical fissures; exuding white or yellowish-white latex.

Uses: Leaves are used to improve eyesight, nourish the liver, repel wind, and clear heat. It also aids in treating dizziness, dysentery, supports liver function, maintains youthful skin, coughs and cold symptoms, strengthens blood, treats colic and strengthens eyes. Fruits are edible.

 

6.Botanical Name: Delonix regia (Hook.) Raf.

Family: Leguminosae

Common name: Royal poinciana, also called flamboyant tree or peacock tree

Vernacular name in Assamese: Krishna sura

General characters: A medium-sized deciduous tree with a broad-spreading, flat-topped, umbrella-like crown. This tree is noted for featuring a superb ornamental display of showy scarlet flowers and compound mimosa-like leaves.

Uses: Ornament tree. It has some medicinal properties like anti-diabetic activity, anti-bacterial activity, anti-diarrheal property, Hepatoprotective/Cytotoxic property, anti-microbial and anti- inflammatory activity.

 

7.Botanical name: Albizia lebbeck Benth

Family: Mimosaceae

Common name: Lebbek

Vernicular name: শিৰিষ /স্বৰ্ণচূড়া

Description: Lebbek is a deciduous, perennial medium-sized legume tree. It reaches 3-15 m in plantations and up to 30 m in the open. Its dense shade-producing crown can be as large as 30 m in diameter. Leaves are bipinnate with 3-11 pairs of bright green, oblong leaflets, 1.5-6.5 cm long x 0.5-3.5 cm broad. Inflorescences are globular clusters of 15-40 white fragrant flowers. The fruits are 10-30 cm long x 3-6 cm broad, reddish-brown pods that contain 5-15 flat rounded, free moving seeds. They produce an incessant rattle in the wind, reminding women's chatter, hence the name "women's tongue" (FAO, 2010Orwa et al., 2009Lowry et al., 1992).

Distribution 

Lebbek is native to tropical Africa, Asia and Northern Australia. It is widely naturalized within sub-humid, semi-arid tropics and subtropical areas where there is a marked dry season and a reliable rainy season. It is found from sea level up to an altitude of 1800 m (Cook et al., 2005Lowry et al., 1992Duke, 1983).

Optimal growth conditions are average day temperatures ranging from 19°C to 35°C, annual rainfall between 500 mm and 2500 mm and fertile, well-drained loamy soils. It may, however, withstand lower and more irregular rainfall conditions. It can also grow on a wide diversity of soils such as acid, alkaline or saline soils, eroded soils and laterites except heavy clays (Orwa et al., 2009Lowry et al., 1992). It is tolerant of heavy grazing and fire (Lowry et al., 1992). Seedlings are sensitive to frost and heavy browsing but older plants can survive (NAS, 1980).

 

Uses: Good for fire wood. It is generally planted as shade tree in tea and coffee garden (Orwa et al., 2009Duke, 1983).. Its provide shelter for birds and varieties of inspect. Due to rapid growing nature of the plant, people prefer to plant it in public places for shade. Lebbek is a multipurpose tree. As a fodder tree, its foliage, twigs, flowers and immature pods are relished by different classes of livestock (camels, cattle, small ruminants and rabbits) (FAO, 2010). It is also used planted as timber yielding plant. Lebbek is suitable for agroforestry regimes in which the benefits of animal production are combined with wood production (Lowry et al., 1998).

IUCN status: LC

 


Local name: ঔটেঙা (O Tenga)

Scientific name: Dillenia indica L.

Family: Dilleniaceae


 

8. Local name: কৃষ্ণচূড়া (Krishnasura)  

Scientific Name: Delonix regia (Hook.) Raf.

Family: Leguminosae


  

9. Local: নাহৰ (Nahor)  

Scientific Name: Mesua ferrea L.

Family: Calophyllaceae


10. Local name: হেলচ্ (Haloch)

Scientific Name: Antidesma ghaesembilla  Geartn.

Family: Family: Phyllanthaceae

Dept. of Botany, Namrup College

 

 11. Local name: শিমলু (Simolu)

Scientific Name: Bombax ceiba L.

Family: Family: Malvaceae

Dept. of Botany, Namrup College

 

12. Local name: পান্থপাদপ (Panthapapod)

Scientific Name: Ravenala madagascariensis Sonn.

Family: Family: Strelitziaceae

Dept. of Botany, Namrup College

 

 

13. Local name: অৰ্জুন (Arjun)  

Scientific Name: Terminalia arjuna W & A

Family: Family: Combretaceae

Dept. of Botany, Namrup College

 

 

15. Local name: তগৰ (Tagor)   

Scientific Name: Gardenia jasminoides J. Ellis

Family: Family: Rubiaceae

Dept. of Botany, Namrup College

 

 

 

Gardenia jasminoides J. Ellis

 Local name: তগৰ (Tagor)

Scientific Name: Gardenia jasminoides J. Ellis

Family: Family: Rubiaceae

Dept. of Botany, Namrup College

Terminalia arjuna W & A

 Local name: অৰ্জুন (Arjun)

Scientific Name: Terminalia arjuna W & A

Family: Family: Combretaceae

Dept. of Botany, Namrup College

Ravenala madagascariensis Sonn.

 Local name: পান্থপাদপ (Panthapapod)

Scientific Name: Ravenala madagascariensis Sonn.

Family: Family: Strelitziaceae

Dept. of Botany, Namrup College

Bombax ceiba L.

 Local name: শিমলু (Simolu)

Scientific Name: Bombax ceiba L.

Family: Family: Malvaceae

Dept. of Botany, Namrup College

Antidesma ghaesembilla Geartn.

 Local name: হেলচ্

Scientific Name: Antidesma ghaesembilla  Geartn.

Family: Family: Calophyllaceae

General characteristics: 

Uses:

Monday 1 May 2023

Albizia lebbeck Benth

Botanical name: Albizia lebbeck Benth

Family: Mimosaceae

Common name: Lebbek

Vernicular name: শিৰিষ (স্বৰ্ণচূড়া)

General characteristics: Lebbek is a deciduous, perennial medium-sized legume tree. It reaches 3-15 m in plantations and up to 30 m in the open. Its dense shade-producing crown can be as large as 30 m in diameter. Leaves are bipinnate with 3-11 pairs of bright green, oblong leaflets, 1.5-6.5 cm long x 0.5-3.5 cm broad. Inflorescences are globular clusters of 15-40 white fragrant flowers. The fruits are 10-30 cm long x 3-6 cm broad, reddish-brown pods that contain 5-15 flat rounded, free moving seeds. They produce an incessant rattle in the wind, reminding women's chatter, hence the name "women's tongue" (FAO, 2010Orwa et al., 2009Lowry et al., 1992).

Distribution: Lebbek is native to tropical Africa, Asia and Northern Australia. It is widely naturalized within sub-humid, semi-arid tropics and subtropical areas where there is a marked dry season and a reliable rainy season. It is found from sea level up to an altitude of 1800 m (Cook et al., 2005Lowry et al., 1992Duke, 1983).

Uses: Good for fire wood. It is generally planted as shade tree in tea and coffee garden (Orwa et al., 2009Duke, 1983).. Its provide shelter for birds and varieties of inspect. Due to rapid growing nature of the plant, people prefer to plant it in public places for shade. Lebbek is a multipurpose tree. As a fodder tree, its foliage, twigs, flowers and immature pods are relished by different classes of livestock (camels, cattle, small ruminants and rabbits) (FAO, 2010). It is also used planted as timber yielding plant. Lebbek is suitable for agroforestry regimes in which the benefits of animal production are combined with wood production (Lowry et al., 1998).

IUCN status: LC

Dillenia indica L

Botanical name: Dillenia indica L.

Family: Dilleniaceae

Common name: Elephant apple

Assamese name: ঔটেঙা

General characteristics: It is a native plant of China and Asia. In India, it is found in Andaman & Nicobar Island, Assam, West Bengal, Himalayan Region (Barooah & Ahmed, 2014). It is a medium size tree growing upto 15 m tall. Leaves simple, large, alternate or spirally arranged, petioles channeled above, exstipulate or stipulate and its length is about 15-36 cm. Flowers solitary or clusters in terminal racemes, bracts, bracteoles caduceus when present, Calyx 5 toothed, spreading, enlarged and fleshy in fruit. Corolla 5 lobed, white or yellow, usually larger that sepals, caduceus. Stamens free, njumerous, filaments cylondric, anthers linear with parallel loculi, Carpels 5-20, borne on conical receptacle, radiating styules, ovules 4-80. Fruits indehisecent pseudocarps, enclosed by enlarged thick sepals, seeds exarillate (Ganeshaiah and Kailash; Komor & Devi 2016).

Uses: Dillenia indica is widely used in various purposes. Timber is used to make post in traditional house by village people. In rural areas, people use its trunk in construction of local boat. As the fruit is sour in taste, so its use in preparation of various forms of delicious food in Assamese kitchen. Fruit is used in preparation of prickle. It has antidysentric property. In Assam, fruit is cooked with fish and it is one of the popular delicious curries which is called as “Machor Tenga”. The inner mucilaginous part of the fruit is used for hair wash and people believe that it is better than shampoo.  

IUCN status: LC

Sunday 30 April 2023

Delonix regia (Hook.) Raf.

Botanical Name: Delonix regia (Hook.) Raf.

Family: Leguminosae

Common name: Royal poinciana, also called flamboyant tree or peacock tree

Vernacular name in Assamese: কৃষ্ণচূড়া Krishna sura

General characters: A medium-sized deciduous tree with a broad-spreading, flat-topped, umbrella-like crown. This tree is noted for featuring a superb ornamental display of showy scarlet flowers and compound mimosa-like leaves.

Uses: Ornament tree. It has some medicinal properties like anti-diabetic activity, anti-bacterial activity, anti-diarrheal property, Hepatoprotective/Cytotoxic property, anti-microbial and anti- inflammatory activity.

Morus alba L.

Botanical Name: Morus alba L.

Family: Moraceae

Common name: White mulberry

Vernacular name in Assamese: নুনী Nuni

General characters: A fast-growing shrub or moderate-sized tree with a fairly cylindrical, up to 35 m high and 1.8 m in girth, without buttresses; bark dark greyish-brown, rough with vertical fissures; exuding white or yellowish-white latex.

Uses: Leaves are used to improve eyesight, nourish the liver, repel wind, and clear heat. It also aids in treating dizziness, dysentery, supports liver function, maintains youthful skin, coughs and cold symptoms, strengthens blood, treats colic and strengthens eyes. Fruits are edible.

Mesua ferrea L.

Botanical Name: Mesua ferrea L.

Family: Calophyllaceae

Common name: Ceylon Ironwood

Vernacular name in Assamese: নাহৰ Nahor

General characters: The tree can grow over 30 meters tall. Trunk is straight and erect. Bark is smooth and ash reddish brown in color. Wood is red, hard and heavy. Leaves are 8.0-15.0 cm long, oblong-lanceolate, acute, red when young, afterwards shining above and glaucous, rounded at the base and with close inconspicuous veins.

Uses: Flowers are used in treating diseases like rheumatism, asthma, inflammation, fever, dyspepsia, renal diseases, dysentery, bleeding piles, a bacterial and fungal infection.

Polyalthia longifolia (Sonn.) Thwaites

Botanical Name: Polyalthia longifolia (Sonn.) Thwaites

Family: Annonaceae

Common name: False Ashoka, Mast Tree, Indian Mast Tree, Weeping Mast Tree, Green Champa

Vernacular name in Assamese: দেৱদাৰু Debdaru

General characters: A tall handsome evergreen tree, 12-20 m tall, with straight trunk, undivided, smooth brown greyish bark and slender branches, 1-2 m long, longer at the base up to touch the soil. Leaves are membranous, lanceolate, tapering to a fine point, shining, glabrous, margin undulate or wavy and gland-dotted

Uses: The leaves are used for ornamental decoration during festivals. The tree is a focal point in gardens. It have been widely used in folklore medicine for the treatment of rheumatic fever, gastrointestinal ulcer and generalized body pain.

Mimusops elengi L.

Botanical Name: Mimusops elengi L.

Family: Sapotaceae

Common name: Spanish cherry

Vernacular name in Assamese: বকুল Bokul

General characters: Medium-sized evergreen tree. The leaves are glossy, dark green, oval-shaped, 5–14 cm (2.0–5.5 in) long, and 2.5–6 cm (0.98–2.36 in) wide. The flowers are cream, hairy, and scented. The fruits are fleshy, range in color between yellow and brown, and contain a large brown seed.

Uses: The yellow color pulp is edible. The bark, flowers, fruits, and seeds are used in Ayurvedic medicine in which it is purported to be astringent, cooling, anthelmintic, tonic, and febrifuge. It is mainly used for dental ailments such as bleeding gums, pyorrhea, dental caries, and loose teeth.

Rhynchostylis retusa (L.) Blume

Botanical Name: Rhynchostylis retusa (L.) Blume

Family: Orchidaceae

Common name: Foxtail Orchid

Vernacular name in Assamese: কপৌ ফুল Kopou phool

General characters: Epiphytic herb. It has an erect growth form and can grow up to 50 cm tall. The leathery leaves are recurved and deeply channeled. The flowers are borne on densely flowered, drooping racemes originating from the leaf axils. The flowers consist of white sepals and petals with pink blotches and a pink flower lip.

Traditional Knowledge: The inflorescence is used by Assamese girls to adorn their hair during the spring festival ‘Rongali Bihu’. Among the youths of Assam, this orchid is regarded as symbol of love, fertility and merriment. It is also used in marriage ceremony of the Assamese. Considering its importance the native of Assam grow this species in their home premises.

Medicinal Uses: Plant used in treatment of cuts and wounds.

IUCN status: It is an endangered species.

Thursday 23 March 2023

         তুমি যেতিয়া যন্ত্ৰনা ভোগ কৰা , তেতিয়া ঈশ্বৰক ধন্যবাদ দিবা , কাৰণ যন্ত্ৰণাই হ'ল জীয়াই থকাৰ নিশ্চিত লক্ষণ -- এলবাৰ্ট হুবাৰ্ড

        ইয়াৰ অৰ্থ হ'ল মানুহৰ জীৱনত যন্ত্ৰণাই পৰিবৰ্তন আনে । ভয়াতুৰক সাহসী , দুৰ্বলক অধিক শক্তিশালী কৰি তুলে, আৰু এনেধৰনৰ পৰিবৰ্তনেই মানুহৰ জীয়াই থকাৰ প্ৰমাণ দিয়ে ।

                                                                                                                          সংগ্ৰহ- শেৱালি কোঁৱৰ

         "You should thank God for the obstacles you've enjoyed, because obstacles are a sure sign that you're still alive." - Albert Hubbar                                                                                                          

         The meaning of this quote is that obstacles or challenges in life bring about change and growth. Even though they may be difficult and intimidating, they have the power to make us courageous and strong, and they are a proof that we are still alive and progressing. Therefore, we should be grateful for these challenges and obstacles as they help us to become better versions of ourselves.

                                                                                                                    Collected by Shewali Konwar
প্ৰবাদ বচন
১/ আছে হেংদাং লোৱা নাই , ললে হেংদাং চাৰণ নাই
           --- যুজিবলৈ আগবাঢ়ি নাহিলে কাৰোবাক দুৰ্বলী বা ভয়াতুৰ বুলি ভাবিব নালাগে। খং উঠিলে সকলোৱেই ভয়ংকৰ হৈ উঠিব পাৰে।
২/ উলুৰ লগত বগৰী পোৰা যোৱা।
       অৰ্থাৎ, অসৎ  মানুহৰ লগত সংগত ভাল মানুহ থাকিলেও তেওঁৰো বিপদ হ'ব পাৰে।
৩/ কাকনো বুলিবা ককা, সকলোৰে দাঢ়ি চুলি পকা।
          যেতিয়া সৰু বৰ সকলোৱে অপকৰ্মত লিপ্ত হয় , তেতিয়া কাকো দূখ দিবলৈ কোনো উপায় নাথাকে।
৪/ কিনা হাঁহৰ ঠোঁটলৈকে মঙহ।
        --- অৰ্থাৎ কিনি অনা বস্তুৰ যিমান পাৰি সিমান বেছি ব্যৱহাৰ কৰিব চেষ্টা কৰা হয়।
৫/কৃষ্ণই কৰিলে লীলা ,আমি কৰিলে ধৰি বান্ধি কিলা।
        ---------সমাজৰ গণ্য মাণ্য মানুহে কিছুমান কাম কৰিলে প্ৰসংশা পায় । কিন্তু সাধাৰণ মানুহে কৰিলে ঠাট্টা মস্কৰাহে  কৰা হয়।
                                                                                                           সংগ্ৰহ- শেৱালি কোঁৱৰ
Note: Above matters were presented in morning assembly conducted by Department of Botany on 23rd, 24th and 25th March 2023. You may watch morning assembly here

Monday 6 February 2023