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....3 Fruiting calyces open at the throat, lateral calyx lobes mostly shallowly deltate to merely apiculate or absent, sometimes obscure or obsolete, not turned upward to close the throat.
......4 Flowers herkogamous, corolla limb expanded 10–15 mm (pressed)
......4 Flowers plesiogamous, corolla limbs expanded 5–8 mm or 1–1.5 mm (pressed).
........5 Fruiting calyces minutely hirtellous; stems often prostrate to decumbent but becoming fully erect at least in the inflorescence, commonly distinctly fistulose