SAXIFRAG E2E. 
119 
rior, sep. linear-lanceolate as long as the capsule shorter than the 
germen. — E. B. 2278. — Fl. in a cymose panicle, numerous, 
white. St. a foot high, solitary. Peduncles, germcns and cal. 
downy and viscid. Caps, not tubercular. S. ladanifera, which 
is confounded with this by Seringe, has oblong sepals about half 
as long as the tubercular caps, in my Pyrcncan specimen. — Clova 
Mountains. G. Don. P. V. S. 
Sec. 2. Without barren shoots at the base. 
* Stem leafy. 
15. S. tridactylites (L.) ; st. panicled erect leafy, 1. wedge- 
shaped 3 — 5 -fid with a flat petiole, lowermost often simple and 
spathulate, peduncles 1 -flowered much longer than the fruit with 
2 bracts at the base, cal. superior. — E. B. 501. St. 33. 15. — 
Whole plant viscid, 2 — 4 in. high. Fl. scattered, numerous, 
small, white.— Walls and dry banks. A. IV.— VII. 
16. S. yranulata (L.) ; st. erect slightly leafy, radical I. reni- 
form crenately lobed with channeled 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 granulated. — 
E. B. 500. — Root bearing numerous small round downy bulbs. 
St. 6—12 in. high. Fl. large, white. — Gravelly banks. P. V. 
17- S. cermia (L.) ; st. erect simple \-fiowered leaf)', radical 1. 
reniform palmately lobed stalked, upper 1. nearly sessile subtrifid, 
uppermost entire, axils bearing bulbs, cal. quite inferior. — E. B. 
664. — Seldom producing more than 1 fl., often 0, all of them 
being converted into minute reddish bulbs. St. 3 — 6 in. high. — ■ 
" Dry rocks " on the highest summits of the Breadalbane Moun- 
tains, rare. P. VI.— VIII. S. 
18. S. rivularis (L.) ; st. ascending branched few-flowered leafy, 
radical 1. subreniform stalked with 3 — 5 rounded lobes, upper- 
most 1. lanceolate entire, cal. half inferior. — E. B. 2275. — St. 
1 — 2 in. long. Fl. few, stalked, white. — Damp places on the 
highest summits of mountains. P. VIII. S. 
** Stem leafless. 
19- <S. nivalis (L.) ; st. erect leafless, I. all radical roundish-ob- 
ovate dentate-serrate narrowed into a footstalk, fl. capitate, cal. 
half inferior, pet. longer than the calyx. — E. B. 440. St. 35. 4. 
St. 3 — 6 in. high, usually simple, sometimes with 1 branch. Fl. 
in a dense cluster, white. — Alpine rocks in Wales and Scotland. 
P. VII. 
Sec. 3. Stems procumbent with opposite 1. and terminal flowers. 
20. S. oppositifolia (L.) ; st. procumbent, I. opposite oblong 
obtuse fringed, sep. ciliated without glands, pet. ovate. — E. B. 9. 
j — Very different from our other species. Fl. large, purple. — 
Damp alpine rocks. P. IV. V. 
