SAXIFRAGA 



SAXIFRAGA 



3091 



Var. lutescens, Hort., is offered in the trade. Var. 

 purpurea grandiflora, Hort., is a trade name for a 

 form which is said to be more vigorous than previous 

 red saxifrages. It is said to form compact basal tufts 

 with bright red fls., fading to rose, nearly 1 in. diam. 

 April. Var. sanguinea, Hort. (S. sanguined superba, 

 Hort., not S. sanguinea, Franch. S. musandes var. 

 sanguinea superba, Hort.). Habit neat and compact, 

 growth rapid : fls. rich blood-red, well retained when old. 

 Var. Sternbergii, Engl. (S. Sternbergii, Willd. S. 

 hibernica. Haw., not Sternb. S. hypnoides var. Stern- 

 bergii, Hort.). Lvs. cilia te, somewhat pedate; the mid- 

 lobe entire, the lateral 2-parted, or the midlobe and 

 also the lateral 3-parted; the divisions rather obtuse. 

 Germany. Ireland, Norway, and Greenland. Var. 

 villdsa, Engl., is a form which is villous and canescent 

 and has white fls. 



32. cespitosa, Linn., more commonly spelled c&spi- 

 tosa (Muscaria c&spitbsa, Haw.). Cespitose, 2-6 in. 

 high, a robust grower with short, more or less densely 

 foliose caudicles: sts. few, few-lvd., densely glandular 

 above: Ivs. of the caudicles deep green, smooth, nearly 

 glabrous, either cuneate, attenuate to the petiole, the 

 apex 3-toothed, or obovate-cuneate, attenuate to a 

 petiole double the length of the blade, 3-parted (rarely 

 5), the lobes linear and obtuse: infl. terminal, 1-5-fld. ; 

 fl.-sts. stoutish: fls. white; sepals oblong-deltoid, 

 obtuse ; petals narrowly 



obovate or oblong- 



obovate, rounded at 



the apex. June-Aug. 



N. Eu., X. Asia, and 



N. Amer., Greenland, 



and Lab., the Rocky 



Mts. of X. U. S. and 



Canada to the Pacific 



coast, south there to 



Wash, and Ore. Gn. 



76, p. 283. Probably 



the true S. cespitosa is 



rare in cult . Var. hirta, 



Hort. (S. hypnoides 



var. hirta, Hort.). A 



distinct form with very 



hairy Ivs. giving it 



quite a white, woolly 



appearance. Var. incurvifdlia, Groves (S. incurvifolia, 



D. Don), has the cauline Ivs. more numerous with 



incurved lobes. Mountains of Scotland, Wales, and 



Ireland. 



Subsection EXARAT.E. 



33. exarata, Vill. Fig. 3558. Cespitose, 876 in. high, 

 with subligneous and also herbaceous caudicles which 

 are rosulate at their tips: fl.-sts. erect, few-jvd., soft 

 hirsute below, mixed with slender glandular hairs above: 

 Ivs. of the caudicles cuneate, sessile or petiolate, 3- 

 lobed, the midlobe oblong-obtuse, the lateral either 

 undivided or 2-parted, rather acute; Ivs. of the young 

 shoots 3-divided or lanceolate undivided; cauline Ivs. 

 3-parted; bracts lanceolate: infl. paniculate, 4-10-fld.; 

 the pedicels and calyx short-glandular: fls. usually 

 white or yellowish white but sometimes rose or purple: 

 calyx-lobes obtuse or subacute; petals obovate or 

 obovate-oblong, 3-nerved, double the length of the 

 calyx-lobes. June, July. Alpine regions of Eu., 

 Pyrenees to Greece. G.M. 54:555. A variable spe- 

 cies not commonly cult. 



34. obscftra, Gren. & Godr. Cespitose, 3-8 in. high, 

 with somewhat shrubby, elongated caudicles covered 

 with old Ivs.: fl.-sts. erect, slender, nearly naked, 

 pilose: Ivs., those of the shoots and the lower, pedate- 

 divided, with lanceolate lobes, linear, long-pet ioled, 

 broadened at base, lateral lobes bifid or 2-toothed, 

 teeth lanceolate, the midlobe 3-parted; cauline Ivs. 

 3-5-parted: infl. 5-15-fld., with pedicels shorter than 



196 



the fls.: fls. white; calyx-lobes linear, subacute; petals 

 oblong, not at all clawed, double the length of the 

 calyx-lobes. July, Aug. Pyrenees. A rare, little- 

 known species. 



35. mixta, Lapeyr. The whole plant glandular-pilose, 

 densely cespitose, 2-3 in. high, with subwoody columnar 

 caudicles which are densely imbricate with persistent old 

 Ivs.: fl.-sts. erect: Ivs. mostly light green, soft and more 

 or less strongly nerved, those of the caudicles and 

 shoots cuneate, borne on a large petiole which equals 

 the blade in length, 3-lobed, the lobes horizontally 

 spreading, obtuse or at other times the lobes 3-lobed, 

 the lobules linear, obtuse ; cauline Ivs. obovate-cuneate, 

 3-lobed; bracts oblong, obtuse: infl. corymbose-panicu- 

 late: fls. milk-white, not uncommonly purple-nerved; 

 calyx-lobes ovate, obtuse; petals round-ovate, 3 times 

 as long as the calyx-lobes. June-Aug. Pyrenees. Said 

 to be an attractive little plant with a good habit, but 

 the species proper appears not to have been cult. Var. 

 Iratiana, Engl. (S. Iratiana, F. Schultz). About 2 in. 

 high, differing from the type in the deep green, broadly 



3558. A group of saxif ragas in a rock- 

 garden. Left, S. Sibthorpii (see supple- 

 mentary list, page 3105); center, S. altis- 

 sima (No. 72); right, S. exarata (No. 33). 



obovate-cuneate Ivs. which are 5-9-divided, the lobes 

 being linear, short, and obtuse; in the few-fld., narrow 

 panicle and also in having the white fls. veined with 

 purple. May- July. Pyrenees. The variety is more 

 common in cult. 



Subsection MOSCHAT.S:. 



36. moschata, Wulf. (S. muscmdes, Hort,, not All. 

 S. muscoldes var. moschata, Hort.). Cespitose, 1-5 in. 

 high, the caudicles herbaceous or subligneous, foliose: 

 Ivs. smooth, nerves not prominent, glabrous or glandu- 

 lar-pilose; those of the caudicles linear, entire, obtuse or 

 cuneate, 3-, rarely 5-parted, lobes linear, obtuse, hori- 

 zontally spreading; cauline Ivs. few, 3-lobed or entire; 

 bracts linear, obtuse: infl. racemose or paniculate, 

 1-10-fld., borne on erect, few-lvd., subglabrous or 

 glandular-pilose fl.-sts. : fls. commonly yellowish but not 

 uncommonly rose or dark purple, seldom almost white; 

 calyx-lobes ovate, obtuse; petals spreading, oblong, 

 obtuse, 3-nerved, slightly exceeding the calyx-lobes: fr. 

 ovate-globose. May, June. Cent, and S. Eu. Gn. 76, p. 

 283 (as S. cespitosa) . Linnaeus included this under S. 

 cespitosa and in consequence the two species have been 

 commonly confused. There seems no doubt, however, 

 that Linnaeus intended his cespitosa to apply to the 

 Lapland form. S. moschata is readily separated from 

 the true S. muscoides by the lobed Ivs.; those of the 

 latter are unlobed and linear. A very variable species; 

 some of the varieties in cult, are: Var. Allionii, Engl. 

 (S. Allionii, Gaud., not Bailing. S. muscoides var. 



