A note on a new pollen aperture in Capsella bursa-pastoris (L.) Medik. from Sikkim Himalaya

ABSTRACT

Simple apertures (3–4-colpate) are known to occur in the pollen grains of Capsella bursa-pastoris of the Brassicaceae. In this study we record the occurrence in this species of composite apertures (3-colporate) at higher frequency, for the first time, in addition to 3-colpate grains from Sikkim Himalaya.

KEYWORDS:

• new aperture
• 3-colporate
• Capsella bursa-pastoris (L.) Medik.
• Brassicaceae
• Sikkim Himalaya

Acknowledgments

The authors thank the UGC-CAS Phase VII, Department of Botany, University of Calcutta, for providing necessary facilities. We are thankful to the Department of Forests, Environment and Wildlife Management, Government of Sikkim, for permitting and supporting our field visit.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Suchandrima Siddhanta

SUCHANDRIMA SIDDHANTA, research fellow, Centre of Advanced Study, Department of Botany is a senior research fellow of the department working on pollen flora of Sikkim Himalaya. She did her MSc from University of Kalyani with Taxonomy of Angiosperms and Biosystematics specialization. Her main interest is in the study of pollen flora.

Subir Bera

SUBIR BERA, professor & programme coordinator, Centre of Advanced Study, Department of Botany, University of Calcutta is a senior Palaeobotanist of India working on vegetation history and climate change of south east Asia using plant micro and megafossile proxies.

Debabrata Maity

DEBABRATA MAITY, assistant professor, Centre of Advanced Study, Department of Botany, University of Calcutta is an experienced taxonomist working on Eastern Himalayan flora for nearly two decades. He has a master's degree in Taxonomy of Angiosperms from University of Kalyani. Debabrata also holds a Ph. D. in Eastern Himalayan flora (Vascular Plant Diversity of Kanchenjunga Biosphere Reserve, Sikkim) jointly from Botanical Survey of India and University of Kalyani. His main interests are in the study of Alpine flora of Eastern Himalaya as well as pollen and pollination behavior of high altitude plants.