148 36. SAXIFEAOACEiE. 



[S. pedaUfida (Sm.).— ^. B. 2278.— Probably of garden 

 origin.J 



Sec. 2. Without barren shoots at the base. 

 * Stem leafy. 



12. S. tridaetylites (L.) ; st. panioled erect leafy, 1. wedge- 

 shaped 3 — 5-fid with a flat petiole, lowermost L" often simple 

 and spathulate, peduncles I-flowered much longer than the 

 fruit with 2 bracts at the base, cal. superior. — JE. B. 501. St. 

 33. 15.— Whole plant viscid, 2—4 in. high. Fl. scattered, 

 many, small, white. — -Walls and dry banks. A. IV. — ^VII. 



E. S. I. 



13. S. gramddta (L.) ; st. erect slightly leafy, radical I. reni- 

 form, crenately lobed with channelled petioles, stem-1. nearly 

 sessile 3 — 5-fid, fl. in a cymose panicle, cal. half inferior, pet. 

 obovate-oblong 2 or 3 times as long as the sepals, roots hearing 

 many small round downy bulbs. — S. B. 500. — St. 6 — 12 in. high. 

 PI. large, white. — Gravelly banks. P. V. E. S. I. 



14. S. cer'nua (L.) ; st. erect simple 1-Jlowered leafy, radical 1. 

 reniform palmately lobed stalked, upper 1. nearly sessile suh- 

 trifid, uppermost entire, axUs bearing bulbs, bal. quite inferior. — 

 B. B. 664. — Rarely flowering ; fl. replaced by reddish bulbs. 

 St. 3 — 6 in. high. — Kocks on the top of Ben Lawers, very rare. 

 P. VI.— VIII. s. 



15. S. rivuldris (L.) ; st. ascending branched few-flowered 

 leafy, radical 1. subreniform stalked with 3 — 5 rounded lobes, 

 uppermost 1. lanceolate entire, cal. half inferior. — U. B. 2275. — 

 St. 1 — 2 in. long. PI. few, stalked, white. — Wet places on the 

 coldest parts of mountains. P. VIII. S. 



** Stem leafless. 



16. S. nivalis (L.) ; st. erect leafless, I. all radical roundis/i- 

 obovate dentate-serrate narrowed into a footstalk, /I. in capitate 

 cymes, cal. half inferior, pet. longer than the calyx. — M B. 440. 

 St. 35. 4. — St. .3 — 6 in. high, usually simple, sometimes with 1 

 branch. PL in a dense cluster, white. — Aljiine rocks. P. VIE. 



E. S. I. 



Sec. 3. Stems procumbent with opposite 1. and terminal flowers. 



17. S. oppositifdlia (L.) ; st. procumbent, I. opposite in 4 rows 

 oblong blunt fringed, sep. ciliate without glands, pet. ovate. — 

 E. B. 9. — Very different from our other species. L. with a 

 pore at tip. PI. large, purple. — Damp alpine rocks. P. IV. V. 



E. S. I. 



