166 SUMMER FLOWERS. 



38. Primulaceous Plants. Primulace^. 



* Ovary superior, 



t Calyx divided almost to the base ; (submerged aquatics with 

 divided leaves.) 



(186) Hottonia — calyx five-parted ; corolla salver-shaped. 



ft Calyx fuhular or campanulate ; (terrestrial plants with 

 undivided leaves). • 



% Leaves radical. 



(187) Primula — calyx tubular ; corolla salver-shaped ; stamens 

 five ; flowers on radical peduncles. 



XX Leaves opposite or whorled, cauline. 



(188) Lysimachia — calyx five-parted; corolla rotate, with a five- 



parted limb ; stamens five ; capsule opening at top. 



(189) Anagallis — calyx five-parted ; corolla rotate or funnel- 



shaped, 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. 



39. Plumbaginaceous Plants. Plumbaginace^. 



(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. 



40. Plant aginaceous Plants. Plantaginace^. 



(193) Plantago— flowers hermaphrodite, in terminal heads or 



spikes. 



(194) Littorella — flowers unisexual, solitary or in pairs. 



