Vor. II.] SAXIFRAGE FAMILY. 
7. Saxifraga Aizoon Jacq. Livelong Saxi- 
frage. (Fig. 1829.) 
Savifraga Aizoon Jacq. Fl. Austr. 5: 18. pl. 438. 1778. 
Leaves clustered in a dense rosette at the base of the 
bracted flowering scape; plant spreading by offsets, so that 
several are often joined together. Leaves 4/’-12’ long, 
spatulate, thick, obtuse and rounded at the apex, the 
margins serrulate with sharp hard white teeth; scape 
erect, viscid-pubescent, 4/-10’ high; flowers several or 
numerous, corymbose, yellowish, about 3/’ broad; calyx- 
lobes oyate-oblong, obtuse, viscid, shorter than the obo- 
yate, often spotted petals; capsule tipped by the divergent 
styles, its base adnate to the calyx. 
On dry rocks, Mt. Mansfield, Vermont; Quebec to Labra- 
dor, west to Lake Superior and Manitoba. Also in alpine 
and arctic Europe. Summer. 
8. Saxifraga caespitosa L,. Tufted Saxifrage. 
(Fig. 1830. ) 
Saxifraga caespitosa I,. Sp. Pl. 404. 1753. 
Densely tufted, leaves clustered at the base, spatulate or 
fan-shaped, 3/’-9’’ long, deeply 3-5-cleft or lobed into linear 
obtuse segments, glabrous; flowering stem erect, 2-8’ high, 
viscid-pubescent, at least above, linear-bracted or with several 
3-lobed leaves; flowers 1-8, corymbose, 4/’—7/’ broad, white; 
calyx-lobes oyate-oblong, obtuse or obtusish, much shorter 
than the obovate petals; capsule-tips divergent; base of the 
capsule adnate to the calyx, 
On rocks, Quebec, Labrador and Newfoundland, west through 
arctic America to Alaska, south to Oregon and in the Rocky 
Mountains to Colorado. Also in arctic and alpine Europe and 
Siberia. Summer. 
g. Saxifraga Pennsylvanica I. Pennsylvania or Swamp Saxifrage. 
(Fig. 1831.) 
Saxifraga Pennsylvanica 1,. Sp. Pl. 399. 
1753 
Sharrare Forbesti Vasey, Am. Entom, & 
Bot. 2: 288. 1870. 
Scape stout, terete, viscid-pubescent, 
1°-3%° high, bracted at the inflores- 
cence. Leaves large, oval, ovate, obovate 
or oblanceolate, pubescent or glabrate, 4’— 
10’ long, 114’-3/ wide, obtuse at the apex, 
narrowed at the base into a broad petiole, 
the margins denticulate or repand; cymes 
in an elongated open panicle; flowers 
greenish, regular, 1 14//-214’’ broad; calyx- 
tube nearly free from the ovary, its lobes 
ovate, obtusish, reflexed, one-half shorter 
than the lanceolate or linear-lanceolate 
petals; filaments subulate or filiform; fol- 
licles ovoid, their tips divergent when 
mature, 
In swamps and on wet banks, Maine to 
southern Ontario and Minnesota, south to 
Virginia, lowa and Missouri. May. 
