Tropical Plant Research

Tropical Plant Research

An Internationl Journal by Society for Tropical Plant Research

E-ISSN: 2349-1183 P-ISSN: 2349-9265
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2016, VOLUME 3 ISSUE 3Pages: 681-685

Bidens bachulkarii (Asteraceae-Heliantheae): A new species from Western Ghats, India

D. G. Jagtap* and M. Y. Cholekar
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Abstract:
Bidens bachulkarii a new species in Asteraceae (Tribe:Heliantheae) from Western Ghats (Maharashtra and Karnataka), India is described and illustrated. The species is closely related with the Bidens pilosa and Bidens pilosa var. minor. However, it differs in several characters viz., glabrous and ribbed stem, head terminal and axillary in position, tri-lobed, bisexual and fertile ray florets, achenes dimorphic, pappus awns of ray and disc achenes half covered with retrose bristles.
Bidens bachulkarii Jagtap & Cholekar: A, Habit; B, Single head; C, Outer involucral bract; D, Inner involucral bract; E, Single ray floret; F, Gynoecium of ray florets; G, Single stamen of ray floret; H, Achene of ray floret; I, Disc floret; J, Gynoecium of disc floret; K, Stamen of disc floret; L, Achene of disc floret

Fig.: Bidens bachulkarii Jagtap & Cholekar: A, Habit; B, Single head; C, Outer involucral bract; D, Inner involucral bract; E, Single ray floret; F, Gynoecium of ray florets; G, Single stamen of ray floret; H, Achene of ray floret; I, Disc floret; J, Gynoecium of disc floret; K, Stamen of disc floret; L, Achene of disc floret


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