SAXIPRAGA 



EE. Leaf - margins spread- 

 ing, serrate, sometimes 

 both margins and up- 

 per face criistate U. Cotyledon 



12. Aizoon 

 CO. Apex and margin of leaves 

 without pores. 

 D. True stem all subter- 



E. Plant propagating by 

 means of subterranean 

 bulblets produced o n 

 the very short - jointed 



caudex 13. granulata 



14. rivularis 

 EE. Plant propagating by 

 non-bulbiferons shoots. 

 F. Foliage peltate, large.l5. peltata 

 TF. Foliage not peltate. 



SAXIFRAGA 



1619 



rs. slabi 



2. Strilcheyi, Hook . f. & Thorn . (S. unguicuma, 

 lort., not Engl.). Fig. 2258. Habit of S. ligulata: 

 LIS on botli sides, obovate, usually not at all 

 base, the margin ciliate and from crenate- 

 learly entire ; pedicels and calices pubescent, 



/>. 



G. Pet, I Js 



chrysantha 



2258. Saxifraga Stracheyi (X K* 

 the flowers ;ire appearing iu earliest 



.17. rotundifolia 



18. punctata 



19. Mertensiana 



Shape of petals 

 lanceolate- 



II. Shape of petals 

 orbicular 2 



DD. True stem above ground, 

 the plant propagating by 

 evident stolons or offsets. 

 E. Petals all equal. 



P. Pistil more or less ad- 

 nate to the calyx-tube 

 at its base. 

 G. Foliage stiff a}id 

 withering rather 

 than failing, not 

 divided, the mar- 

 gin usually setose. 2 



EE. Petals unequal, the two 

 lower ones much larger 

 than the others 3 



bryophora 

 , leucanthemifolia 

 , Pennsylvanica 



, nivalis 



. Virginiensls 



. integrifolia 



, Camposii 

 caespitosa 

 . aphylla 



sarmentosa 



1. liguiata. 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 Hooker. L.B.C. 8:747. R.H. 1868:271. 

 —Not perfectly hardy at Boston. By error, the name is 

 sometimes written S. lingulafa , a name which properly 

 belongs to a very different species ( N'c. (i|. Var. rtibra, 

 Hort.,is a form with red-purple tls. V:ir. specidsa, Hort., 

 has showy blush or rose-white fls. 



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

 sute on both sides and the margins strongly ciliate. 

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



the scape beoo 

 {sometimes yt 

 wider above t 

 erect. Kashnii 

 (as S. ciliatu) 



.il. 



• ri- tall: fls. white or rose 

 \ treth oblong and often 

 'iv;ite-lanceolate, usually 

 I. B.M. 5967?. B.R. 29:65 

 •J.H. in. 32:281. 



3. Mllesii, Leichtl. |S. ^'(rdc/iei/j, var. jnjesti.Hort.). 

 From *'. Stracheyi it differs in having longer Ivs. 

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

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

 Himalaya. 



4. crassifolia, hmn. (S. cuneifolia, Hort.,not Linn. 

 S. Sibirica. 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. cordifolia, 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. HuetiElna, Boiss. Annual or biennial, but grown 

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

 ings and borders of small beds: dwarf, about 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 

 or oblong: seeds small tuberculate Asia Minor —Very 

 effective little plant 



8. oppositifdlia, 

 Linn. Stem or ciu 

 dex perennial 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 

 lvs. imbricated m 



2259 Saxifraga crassitolu 



four 





tary on the ends of the annual leafy shoots, lilac or 

 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. 41ba, fls. white; var. major, fls. 



