Research Article | Published: 01 December 2004

Gongylanthus indicus sp. Nov. (Hepaticae) from Nilgiri, India

S. C. Srivastava and P. K. Verma

Indian Journal of Forestry | Volume: 27 | Issue: 4 | Page No. 417-422 | 2004
DOI: https://doi.org/10.54207/bsmps1000-2004-66UI7I | Cite this article

Abstract

The genus Gongylanthus Nees (Arnelliaceae) is being reported as new addition to India with G. indicus sp. nov. as new to science. The plants grow in Naduvattam (Nilgiri hills), Tamil Nadu forming terricolous population. The genus is remarkable in having a well-defined positively geotropic cylindrical marsupium - a special protective device (shoot-calyptra) over the developing sporophyte. This species is characterized by perfectly connate and highly concave leaves, and feebly developed trigones in leaf cells and scattered rhizoids.

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Plate. 1

Figs. 1-13. Gongylanthus indicus sp.nov. 1. A portion of vegetative plant (dorsal view). 2. T.S. of stem. 3. Leaf, showing dorsal connation. 4-7. Leaves. 8. same, enlarged. 9. apical cells of leaf. 10. Median cells of leaf 11. Antical basal cells of leaf. 12. Postical basal cells of leaf 13. T.S of leaf (All figures drawn from LWU 16168/02)

Plate. 2

Figs. 1-8. Gongylanthus indicus sp.nov.1. Male plant (dorsal view). 2. Male bract. 3. Female plant (lateral view) 4. Female bract. 5. Apical cells of female bract 6. Base of marsupium, showing protruding cells. 7. L.S. of marsupium, showing immature sporophyte. 8. T.S. of marsupium, showing clavate papilliform cells (All figures drawn from LWU 16168/02).

Plate. 3

Figs. 1 & 2. Gongylanthus indicus sp.nov. 1. A plant, dorsal view (x 48). 2. Female plant, lateral view, showing marsupium (x48) (All micro-photograph from LWU 16168/02).

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How to cite

Srivastava, S.C. and Verma, P.K., 2004. Gongylanthus indicus sp. Nov. (Hepaticae) from Nilgiri, India. Indian Journal of Forestry, 27(4), pp.417-422. https://doi.org/10.54207/bsmps1000-2004-66UI7I

Publication History

Manuscript Published on 01 December 2004

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