Research in Plant Sciences
ISSN (Print): 2333-8512 ISSN (Online): 2333-8539 Website: http://www.sciepub.com/journal/plant Editor-in-chief: Fathy El-Fiky
Open Access
Journal Browser
Go
Research in Plant Sciences. 2015, 3(1), 1-3
DOI: 10.12691/plant-3-1-1
Open AccessArticle

Conocephalum conicum- Massive Decline in Spore-elater Ratio

Kanu Anand1, and Anima Langer1

1Department of botany university of jammu jammu india

Pub. Date: February 04, 2015

Cite this paper:
Kanu Anand and Anima Langer. Conocephalum conicum- Massive Decline in Spore-elater Ratio. Research in Plant Sciences. 2015; 3(1):1-3. doi: 10.12691/plant-3-1-1

Abstract

Various populations of Conocephalum conicum were collected from different regions of Jammu division, Jammu and Kashmir, India. All the fertile populations showed less spore-elater ratio i.e 0.4:1 which is very much lower than the actual ratio in order Marchantiales. When compared with herbarium specimens of 1958, this plant showed same results means its ratio starts declining over a decade.

Keywords:
Conocephalum conicum spore-elater ratio

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]  Bapna, K. R. and Kachroo, P. (2000). Hepaticology in India; Himanshu Publications, Udaipur, New Delhi. 2: 381-458.
 
[2]  SBhagat, M., Sharma,A. And Langer, A. (2012). “Conocephalum conicum (L.) Dumort: A Case of Unique Reproductive Biology”. American Journal of Plant Sciences 3, 1145-1149
 
[3]  Ellen, S. M. (1920). The germination of spores of Conocephalum conicum Amer. Jour. Bot. 7: 458-465.
 
[4]  Farmer, J. B. (1895). Spore formation and nuclear division in the Hepaticae. Ann. Bot. 9: 469-523.
 
[5]  K. Rydgren, N. Cronberg and R. H. Okland, “Factors Influencing Reproductive Success in the Clonal Moss, Hylocomium splendens,” Oecologia, Vol. 147, No. 3, 2006, pp. 445-454.
 
[6]  M. Iqbal, A. Langer and A. Alam, “Conocephalum conicum (L.) Dumort. (Snake Liverwort) Threatened in Bhad-erwah (J & K) Due to Environmental Shock,” American Journal of Plant Sciences, Vol. 2, No. 4, 2011, pp. 554- 560.
 
[7]  M. Shimamura, T. Yamaguchi and H. Deguchi, “Airborne Sperm of Conocephalum conicum (Conocephalaceae),” Journal of Plant Research, Vol. 121, No. 1, 2008, pp. 69-71
 
[8]  M. Tanwir and A. Langer, “Liverworts of Ladakh, J & K State (North West Himalaya), India,” Journal of Indian Botanical Society, Vol. 85, 2006, pp. 71-73.
 
[9]  M. Tanwir, A. Langer and M. Bhandari, “Liverwort and Hornwort of Patnitop and Its Adjoining Areas (J & K), Western Himalaya, India,” Geophytology, Vol. 37, No. 1-2, 2008, pp. 35-41.
 
[10]  M. Tanwir, “Studies on the Diversity of Hepatic Flora of District Poonch (North West Himalaya),” Ph.D. Thesis, University of Jammu, Jammu, 2005.
 
[11]  R. K. Koul and G. L. Dhar, “Some bryophytes of Kash-mir Valley,” Kashmir Science, Vol. 5, 1968, pp. 233-237.
 
[12]  R. M. Schuster, “The Hepaticae and Anthocerotae of North America,” Columbia University Press, New York, Vol. 1, 1966, pp. 1-802.
 
[13]  Singh, D.K. (1997). “Liverworts”, in V. Mudgal and P.K.Hajra (eds). Floristic Diversity and Conservation Strategies in India I, BSI, Dehradun. pp. 235-300.
 
[14]  Vanderpoorten, A. and Goffinet, B. (2009). Introduction to bryophytes. Cambridge University Press. New York.