* Corolla cut into deep narrow-linear segments.
(180) Phyteuma - corolla rotate, with five long linear segments; anthers free, the filaments dilated at the base; capsule 2-3-celled, bursting at the sides.
** Corolla cut into short broad segments.
(181) Campanula - corolla bell-shaped, tubular, or rotate, with five broad segments; anthers free, the filaments dilated at the base; capsule 3-5-celled, crowned by the calyx-teeth, and opening laterally or at the top.
(182) Oxycoccus - corolla very deeply four-cleft, with reflexed segments; berry crowned by the persistent calyx-teeth.
* Anthers opening by pores.
(184) Pyrola - calyx five-parted; corolla of five petals; capsule five-celled, five-valved.
** Anthers opening by a transverse fissure.
(185) Monotropa - calyx 4-5-parted; corolla of 4-5 petals, each with a hooded nectariferous base; capsule five-celled, five-valved.
* Ovary superior, † Calyx divided almost to the base; (submerged aquatics with divided leaves.)
(186) Hottonia - calyx five-parted; corolla salver-shaped.
†† Calyx tubular or campanulate; (terrestrial plants with undivided leaves).
‡‡ Leaves opposite or whorled, cauline.
(188) Lysimachia - calyx five-parted; corolla rotate, with a fiveparted limb; stamens five; capsule opening at top.
(189) Anagallis - calyx five-parted; corolla rotate or funnelshaped, with a five-parted limb; stamens five; capsule opening all round transversely.
** Ovary half superior.
(190) Samolus - calyx five-parted; corolla salver-shaped, the tube short; stamens five; flowers in a terminal raceme.
(191) Statice - flowers panicled, arranged on one side of the branches in long rows, surrounded by scarious scales.
(192) Armeria - flowers in globular heads, surrounded by a common, imbricated, scarious involucre.
(193) Flantago--flowers hermaphrodite, in terminal heads or spikes.
(194) Littorella - -flowers unisexual, solitary or in pairs.
(195) Pinguicula - calyx 4-5-lobed; leaves entire, radical.
(196) Utricularia - calyx two-lobed; leaves floating, much divided.