234 SUMMER FLOWERS. 



(93) Cotyledon. NAVELWORT. 



C. Umbilicus : stems erect, ^-1 foot high, simple or slightly 

 branched ; radical and lower leaves on long stalks, fleshy, or- 

 bicular, broadly crenate, more or less peltate ; flowers in long 

 racemes, pendulous, y ello wish -green ; corolla cylindrical. 

 Pennywort. Rocks, walls, and old buildings. Fl. June, 

 July. 



(94) Sedum. 



* Leaves with a fiat expanded surface. 



S. Rhodiola : stems erect, stout, simple, J-f foot high, leafy 

 to the top ; leaves alternate, sessile, obovate or oblong, slightly 

 toothed ; flowers dioecious, yellow or rarely purplish, forming 

 dense cymes, surrounded by the upper leaves, the males with 

 eight stamens longer than the petals, the females with four 

 carpels. Rosewort. Clefts of alpine rocks. Fl. May, June. 

 The smell cf the rootstock, when drying, has been compared 

 to that of roses. It is sometimes called Rhodiola rosea. 



S. Telephium : stems hard, erect, simple, 1-2 feet high or 

 more ; leaves scattered, obovate or oblong, coarsely-toothed ; 

 flowers numerous, purple, forming a handsome terminal co- 

 rymb ; stamens shorter than the petals. Orpine. Borders of 

 fields, hedge-banks, and bushy places. FL July, August. 



** Leaves tumid, as thick as l>road. 

 t Flowers white or red. 



S. anglicum : stems glabrous, decumbent, three inches high, 

 much branched at the base ; leaves short, thick, almost globu- 

 lar, crowded on the short barren branches, more loosely scat- 

 tered and occasionally opposite on the flowering ones ; flowers 

 white, occasionally tinged with pink, in a short irregular cyme. 

 Rocky or stony places. Fl. July. 



