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Scrophulariaceous Taxa in Bangladesh

Mohammad Oliur Rahman
Bangladesh National Herbarium, Chiriakhana Road, Mirpur-1, Dhaka-1216, Bangladesh

Abstract/ Executive Summary:

This paper presents a total of 59 Scrophulariaceous species distributed in 23 genera from Bangladesh. An updated nomenclature, brief diagnostic characters, flowering and fruiting period and distribution within and outside Bangladesh have been furnished under each species. Chromosome number has also been cited whenever possible.

Keywords: Schrophulariaceae, Herbarium, Bangladesh

Location: Bangladesh National Herbarium, Dhaka University Herbarium, Bangladesh

Start Date:

End Date:

Program Area: Development of Host and Medicinal Plants

Commodity: Medicinal Plants

Objectives:

To document all members of the Scrophulariaceae available in Bangladesh.

Methodology:

The present paper is based on herbarium specimens deposited in Bangladesh National Herbarium, Dhaka University Herbarium, and the existing literatures. A total of 59 species distributed in 23 genera from Bangladesh have been identified. Nomenclature has been brought up-to-date with the aid of modern literatures. The genera and species have been placed in an alphabetical order. A crisp diagnostic account along with flowering and fruiting period and the distribution of the species within and outside Bangladesh have been furnished. Chromosome number (2n) has also been cited whenever possible. An annual herb. Leaves oblong-lanceolate to oval-oblong, Corolla pale purple to dark blue. Capsule ovoid. Flowering and fruiting : July - January. 2n = 72 (Mehra and Vasudevan 1972). Distributed in Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Thailand and Vietnam. In Bangladesh, this species is common throughout the country. A bushy undershrub. Leaves lanceolate. Corolla white with violet spots. Capsule longitudinally 2-valved, valves entire. Flowering and fruiting : Almost throughout the year. 2n = 20 (Verma and Dhillon 1967). Distributed in South America; now naturalized elsewhere. In Bangladesh, this species is found in Cox's Bazar. An erect herb with glabrous branchlets. Leaves oblong-lanceolate. Corolla lavender, orange, pink, red, yellow, white or purple. Capsule oblong, glandular outside. Flowering and fruiting: Almost throughout the year. 2n = 16 (Verma and Dhillon 1967). Distributed in South West Europe and the Mediterranean region. In Bangladesh, this species is found under cultivation throughout the country in the gardens. An annual herb. Leaves ovate to narrowly ovate. Corolla pale yellow or white. Fruit a capsule. Flowering and fruiting : August - November. Distributed in Bhutan, Cambodia, China, India, Indonesia, Laos, Malaysia, the Philippines, Thailand and Vietnam. In Bangladesh, this species is confined to Sylhet. An annual or biennial herb. Radical leaves compound or pinnatisect, with several small leaflets or segments at base and a large oblong-oval acute terminal leaflet, cauline leaves oblong-ovate. Corolla yellow. Capsule ovoid. Flowering and fruiting : March - August. 2n = 80 (Malik 1960). Distributed in Afghanistan, Cambodia, China, India, Laos, Myanmar, Pakistan, Sri Lanka and Thailand. In Bangladesh, this species is found in Chittagong and Dhaka.

Source of Information: Bangladesh J. Plant Taxon. 13(2): 139-154, 2006 (December)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

A perennial herb. Leaves mostly elliptic to ovate, sometimes ovate-oblong or linearlanceolate, rarely lanceolate. Corolla pale blue, pale purple, violet or white. Capsule subglobose. Flowering and fruiting : April - September. 2n = 28, 32 (Bhattacharyya 1969). Distributed in Afghanistan, China, India, Japan, Korea, Laos, Nepal, Pakistan, Thailand and Vietnam. In Bangladesh, this species is found in Dhaka, Kishoreganj, Kurigram, Mymensingh and Rajshahi.

Knowledge Management: Journal