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“Bachelor’s Button. I, vertical section of the receptacle; II, style and forked stigma; III, corolla, united anthers and stigma; IV, pistil; pap, pappus; ak, akene; V, tubular flower cut vertically, showing anther-tube, traversed by the style; l, lobe of corolla.” -Bergen, 1896


Joseph Y. Bergen, A. M. Elements of Botany (Boston, MA: Ginn & Company, 1896)


TIFF (full resolution)

2400×1868, 598.4 KiB

Large GIF

1024×797, 71.8 KiB

Medium GIF

640×498, 36.5 KiB

Small GIF

320×249, 13.1 KiB