SAXIFRAGA 



^■E. Leaf - margins spread- 

 ing, serrate, sometimes 

 both margins and up- 

 per face crustate 11. Cotyledon 



12. Aizoon 

 CO. Apex and margin of leares 

 without pores. 

 D. True stem all subter- 



E. Plant propagating b y 

 means of subterranean 

 bulblets produced on 

 very short -jointed 



SAXIFBAGA 



1619 



2. Stracheyi, Hook. f. & Thom. [S. unguicuUta, 

 Hort., not Engl.). Fig. 2258. Habit o£ S. ligulata: 

 Its. glabrous on both sides, obovate, usually not at all 

 cordate at base, the margin ciliate and from crenate- 

 serrate to nearly entire: pedicels and calices pubescent, 



D. True stem above ground, 

 the plant propagating by 

 evident stolons or offsets. 

 E. Petals all equal. 



F. Pistil more or less ad- 



■s. Foliage stiff and 

 withering rather 

 than falling, not 

 divided, the mar- 

 ginusually setose.26. 



. Camposii 

 , caespitosa 

 . aphylla 



EE. Petals unequal, the two 

 loiverones much larger 

 than the others 



33. sarmentosa 



1. lifimlita, Wall. (S. Schmidtii, Kegel). Strong- 

 growing plant, with large radical Ivs. 3-8 in. across and 

 orbicular or obovate in outline and cordate at base, the 

 margin scarcely undulate but ciliate: scape becoming 

 about 1 ft. tall, this and the pedicels and calices gla- 

 brous: fls. white to light purple, orbicular and clawed: 

 fr. subglobose, drooping. Himalayan region. B.M. 

 3406, "the sepals too acute and the leaves too undulate," 

 according to Honkor, I;. B.C. 8:747. B.H. 1868:271. 

 -Not perfectly liardy at Bo'^ton. By error, the name is 

 sometimes writtt-n .v. /iin/idata, a name which properly 

 belongs to a vtrv diftVi-.i.t species (No. 9). Var. rtibra, 

 Hort., is a form with red-purple fls. Var. specidsa, Hort., 

 has showy blush or rose-white fls. 



Var. ciUata, Hook. (S. cilidta, Royle), has Ivs. hir- 

 sute on both sides and the margins strongly ciliate. 

 B.M. 4915. G.C. III. 5:365. 



2258. Saxifraea Stracheyi (X H)- 



As the flowers are appearing in earliest spring. 



the scape becoming 1 ft. or more tall: fls. white or rose 

 (sometimes yellow!), the calyx-teeth oblong and often 

 wider above their base: fr. ovate-lanceolate, usually 

 erect. Kashmir, 8,000-14,000 ft. B.M. 5907!. B.R. 29:65 

 {asS.ciliata). G.M. 39:233. J.H. III. 32:281. 



3. Mllesii, Leichtl. (-S. Sfrdc/iet^i, var. J/l^esit, Hort.). 

 From S. Stracheyi it differs in having longer Iva. 

 (9-12 m. long and 4-5 in. broad), white fls., oblong 

 calyx-lobes, the petals distinctly clawed: corymb dense. 

 Himalaya. 



4. crassifdlia, Linn. (S. cuneifdlia, Hort., not Linn. 

 S. ^iiiricn, Hort., not Linn.). Fig. 2259. Strong-grow- 

 ing species with woody rhizome: Ivs. obovate to long- 

 obovate, narrowed at the base, undulate-crenate: scape 

 and inflorescence glabrous: fls. lilac or purplish, nu- 

 merous on the inclined or drooping branches of the 

 elevated panicle (scape 10-16 in. tall). Altai to Mon- 

 golia. B.M. 196. G.M. 34:67. Mn. 10, p. 74. 



5. cordifdUa, Haw. Very like the above and probably 

 only a form of it; differs in having broader, round-ob- 

 long, and more or less cordate Ivs. Altai. Var. pur- 

 purea, Hort., has purple fls. 



6. purpurdscens. Hook. f. & Thom. Lvs. broad-obo- 

 vate to short-oblong, the margins entire or slightly 

 undulate, somewhat cordate at base: scape 12 in. or less 

 high, bright purple, hairy: fls. deep purple, nodding, 

 the calyx-lobes very obtuse : fr. elliptic-lanceolate, erect. 

 Sikkim (India), 10,000 to 15,000 ft. altitude. B.M. 5066. 

 —Very handsome because of its purple scape and flowers. 



7. Hueti4na, Boiss. Animal or biennial, but grown 

 from seed as a hardy garden annual and used for edg- 

 ings and borders of small beds : dwarf, about 6 in. high, 

 compact in growth: lvs. reniform and shallowly 5-7- 

 lobed, the lobes obtuse or short-apiculate, long-petioled, 

 bright green in color: fls. small but very numerous, 

 long stalked in the axils, bright yellow, the petals ovate 



seeds small, tuberculate. Asia Minor. — Very 



elfe 



dex 



pla 

 oppositifdlia, 



per 



and 



leafy, the branches 

 rising 6 in. high and 

 bearing many small 

 persistent thick se- 

 dum-like lvs., and 

 giving a moss -like 

 aspect to the plant; 

 sterile shoots with 



2259. Saxifraea crassifolia. 



white, the obovate petals exceeding the stamens. Rocks, 

 alpine and boreal parts of Europe and North America, 

 extending into northern Vermont. L.B.C 9:869.— An 

 excellent little rock plant, making a sedum-like mat, 

 the foliage of a purplish cast. There are several cul- 

 tivated forms, as var. &lba, fls. white; var. m&ior, fls. 



