WJLLOW-IIERl! P'AMILY 



187 



rose-coloured. — By mountain streams in the north. — Fl. Jul)-, 

 August. Perennial, 



12. E. aiiagaUidifbliiun (Alpine Willow-Herb). — A still smaller 

 form, with slender, not succulent skin ; obtuse, pale green leaves : 

 and I — 3 pale rose coloured y76i7i;'(?rj- drooping in bud. — In similar 

 situations to the preceding, — Fl, July, reiennial 



These plants are by no means easy to distinguish ; they vary 

 considerably in many of their characters, and, where two species 

 grow near to one another, hybrids between them occur frequently. 



2. LuDwiciA (Isnardia). — Herbs with entire leaves : a.xillary, 

 solitary, bracteate flowers, usually 4-merous ; se/a/s 3 — 5, 

 persistent; petals 3 — 5, or absent; stamens 3 — 5; ovary 3 — 5- 



