Fl. forming a double triangle, 83mm wide, facing upwards; perianth segments 35mm long, ovate, blunt, yellow, with white mucro, spreading, plane or with margins somewhat incurved, smooth and of
membranaceous substance, overlapping half; the inner segments narrower, with midrib showing; corona narrow funnel-shaped, smooth, yellow, mouth straight, even and lightly frilled, with rim notched
and crenate.

Named after a little town northeast of Boston where hybridiser lived for many years.