334: DECANDUIA— PENTAGYNIA. Cerastlum. 



C. alpinum. Lum. Sp. PL C28. mild. v. 2. 814. FL Br. 500. 

 Ens;L Dot. v. 7. f. 472. Hook. Scot. 144. FL Dan. t. 6. 



C. latifolium. Llghif.242. t. 10. 



Mvosotis n. 888. Hall. Hist. v. 1 . 389. 



Al'sines myosotis facie. Lychnis alpina, flore amplo niveo repens. 

 Rail Syn. 349. t. 15./. 2. 



On the mountains of Scotland and Wales, by the sides of alpine 

 rllls, plentifully. 



By rivulets on the declivities of Snowdon. Mr. Llwyd. No where 



'more plentiful than about springs on the lofty mountain of 



rrifZ«a//, towards the north. Dr.Bichardson. On Ben Lomond, 



near the top, 1782. Not rare on the Highland mountains. 



Hooker. 



Perennial. June, Juhj. 



Root creeping, crowned with tufts cf round leafy stems, some of 

 ihern o or 4 inches high, bearing sometimes a solitary floicer, 

 sometimes 2 or 3, in a forked, partially bracteated panicle. 

 Leaves elliptical, ■§ an inch or more in length, varying in 

 breadth and acuteness, sessile, light green. No ])Lint varies 

 more as to pubescence. Mr. Llwyd originally remarked that 

 some Individuals were green, others hoary. Ttie Linnaan speci- 

 men is perfectly smooth ; others from Wales, Scotland, and 

 Switzerland, quite hoary, even shaggy with long woolly, or 

 silky, jointed hairs, as in Lightfoots figure. The hairs are too 

 short in the plate, executed by Dillenius, in Ray's Synopsis. 

 The calyx-leaves are elliptical, scarcely pointed ; either hairy or 

 smooth ; the inner ones more especially bordered with a white 

 membrane. Pet. inversely heart-shaped, much longer than the 

 calyx, white and handsome. Stam. 10, all perfect. Styles 5. 

 Caps, cylindrical, curved, twice as long as the permanent calyx, 

 opening with 10 lanceolate blunt teeth. 

 The hairy variety has often been taken for the following species. 



7. C. laiifulium. Broad-leaved Mouse-ear Chick- 

 weed. 



Leaves elliptical, rough with short bristly hairs. Flower- 

 stalks terminal, simple, mostly solitary. Capsule ovate 

 at the base. 



C. latifolium. Linn. Sp. PL 629. Willd. v. 2. 817. FL Br. 501. 

 EngL Bot. V. 7. L 473. Huds. 202. Hook. Scot. 144. Jacq. 

 ColLv. 1.256. t.20. 



C. tomentosum. Huds. ed. I. 176. 



Myosotis n. 887. HalL Hist. v. 1 . 389. 



Alsine myosotis lanuginosa alpina grandiflora. Raii Syn. 349. 



Mouse-ear plant. Mart. Spitzberg. 47. chap. 8. t. G. f. d. ItaL 

 ed.\OS.chap.S. 



On the Welsh and Scottish mountains. 



