3094 



SAXIFRAGA 



SAXIFRAGA 



reddish; petioles twice as long as the blade, semi-terete: 

 infl. loosely paniculate, borne on an erect, strigose- 

 pilose scape, the panicle-branches glandulose, spread- 

 ing, 4-7-fld.: fls. white, numerous ', calyx short-glandu- 

 lar, the lobes ovate, obtusish or acute, spreading; petals 

 1-nerved, clawed, unequal, the 3 smaller ovate, acute, of 

 these the two outer have a yellow spot, the middle one 

 2 scarlet spots, the other two 3-4 times larger and 

 lanceolate-elliptic. May-Aug. Japan, China. 

 B.M. 92. G.C. III. 7:237 (showing irrita- 

 bility of plant to light). Gn. 30, p. 363; 32, 

 p. 37. R.H. 1876, p. 427. G. 25:365. Gn. 

 W. 25:781. An old-time greenhouse plant, 

 and also one of the commonest window-gar- 

 den subjects. Of easiest cult. Not quite 

 hardy in England but frequently used in 

 sheltered rock crevices and slightly pro- 

 tected. Var. tricolor, Sieb. (S. tricolor, Hort. 

 S. tricolor superba, Hort.), has Ivs. hand- 

 somely marked with creamy white and red 

 variegations. G.Z. 9:32. Less hardy than 

 the type. 



51. cuscutaefdrmis, Lodd. Perennial, 3-6 

 in. high, stoloniferous, the stolons filiform, 

 often branched and tangled in one another 

 like the sts. of cuscuta: Ivs. basal, rather 

 thick, plano-convex, both surfaces strigose- 

 pilose, green, white-veined, suborbicu- 



lar or ovate, nerved, coarsely toothed or 

 undulate-dentate, teeth broad-acumi- 

 nate, becoming obtusish with age; 

 petioles longer than or 

 equaling the blade, 

 rather terete and thick: 

 infl. laxly secund-panic- 

 ulate from below the 

 middle of the slender, 

 ascending, strigose- 

 pilose scape; the 

 panicle-branches glan- 

 dulose,erect-spreading, 

 slender, 2-3-fld.: fls. 

 white ; calyx very short- 

 glandular, the lobes 

 ovate, acutish, spreading; petals 1-nerved, very short- 

 clawed, lanceolate-elliptic, 3 of them smaller and often 

 pink toward their base and with a yellow spot, the other 

 2 slightly or twice longer. June, July. Japan. L.B.C. 

 2 : 186. B.M. 2631. Not hardy in England unless very 

 heavily protected. 



Section IX. HIRCTJLUS. 



A. Petals obovate 52. diversifolia 



AA. Petals elongated, oblong or ovate-oblong. 

 B. Infl. 3-12-fld., corymbose-panicled: 



the lower Ivs. lanceolate 53. turfosa 



BB. Infl. 1-3- (rarely 5-) fld., racemose: 



the lower Ivs. spatulate 54. Hirculus 



52. diversifdlia, Wall. Eight to 18 in. high, forming 

 tufts of basal Ivs.: sts. hirsute below and glandular 

 (becoming glabrous with age) above, erect and foliose: 

 Ivs. polymorphous, the lower petioled, ovate, obtuse or 

 cordate-based, subacute, undulate, sparsely hirsute or 

 glabrous; cauline mostly sessile, very entire, oblong- 

 lanceolate, obtuse and glandular: infl. corymbose- 

 racemose or paniculate, rarely few-fld.: fls. yellow, 

 obscurely spotted, H-%in. across; sepals ovate, spread- 

 ing, at length reflexed; petals obovate, short-clawed, 

 5-nerved with 4 glands at their base, exceeding the 

 sepals. July-Sept. Himalayas and China. B.M. 6603. 

 Said to be the handsomest of the group and very 

 showy when massed. Var. foliata, Hubb. (forma 

 foliata, Engl. & Irmscher). Sts. erect, with 1 or more 

 Ivs., 3-20-fld.: Ivs. cordate-ovate, glabrous or very 

 shortly and densely glandular-pilose on the margin: fls. 



3559. Saxifraga sarmentosa (XH). No. 50. 



golden yellow; sepals with the nerves mostly parallel. 

 Aug., Sept. China. 



53. turfdsa, Engl. & Irmscher. Sts. erect, 7-14 in. 

 high, rather densely foliose, reddish and glabrous below, 

 pale and short-glandular-pilose above, stoloniferous at 

 base, the stolons about 4 in. long and laxly foliate: basal 

 and also the lower st.-lvs. lanceolate, obtuse, narrowed 

 to a petiole as long as the blade, glabrous; middle and 

 upper cauline Ivs. sessile, oblong-lanceolate, 

 coriaceous, glabrous; the uppermost nar- 

 rower, their margin and often the upper 

 surface densely glandular-pilose: infl. 3-12- 

 fld., corymbose-panicled; pedicels bracteo- 

 late at base, densely short-glandular-pilose: 

 fls. golden or orange-yellow; sepals oblong- 

 ovate, glandulose, reflexed; petals oval or 

 oblong-ovate, short-clawed, 3-nerved, lateral 

 nerves often bifid. Sept., Oct. China. 



54. Hirculus, Linn. (Leptdsea Hirculus, 

 Small). Perennial, 4-12 in. high: basal 

 shoots or surculi short, prostrate, filiform, 

 fuscous- villous and remotely foliose: sts. 

 erect, leafy: Ivs. lanceolate, flat, entire and 

 obtuse; the lower and those of the surculi 

 spatulate, attenuate to the ciliate petiole, 

 the middle and upper Ivs. sessile: infl. termi- 

 nal, 1-3- and rarely 5-fld.; the peduncles 

 erect, 1-fld., brown-villous and glutinose: 

 fls. yellow, J^-%in. across; sepals oblong, 

 very obtuse, reddish ciliate; petals ob- 

 long or ovate-oblong, 

 spotted with red at the 

 base, 3 times longer 

 than the sepals: fr. 

 ovate. July-Sept. N. 

 temperate, subarctic 

 and alpine regions. 

 B.B. 2:171; (ed. 2) 

 2:216. An excellent 

 plant for cold damp 

 locations as it is a 

 native bog-grower. 

 Var. grandifldra, Hort., 

 is freer flowering than 

 the type and has golden yellow fls. 1 in. across; more 

 desirable than the type. 



Section X. TRACHYPHYLLUM (LEPTASEA, CHONDROSEA). 



A. Stolons or runners absent: the young 



shoots leafy and also floriferous. 

 B. Sts. with a basal rosette of Ivs., but 



few-lvd. above 55. chrysantha 



BB. Sts. equally and loosely Ivd. 



c. Axils of the cauline Ivs. with buds. 

 D. Peduncles glabrous: calyx-lobes 



ovate-triangular 56. aspera 



DD. Peduncles glandular: calyx- 

 lobes lanceolate. 



E. Lvs. linear-lanceolate, gray- 

 green; margin ciliate or 



spinulose 57. bronchialis 



EE. Lvs. lanceolate; under surface 

 lineolate; margin strigose, 



with white hairs 58. gemmipara 



CO. Axils of cauline Ivs. without buds, 

 the lowest, however, have more or 

 less elongated leafy shoots. 

 D. Petals oblong, 1-nerved: the cau- 

 line Ivs. oblong 59. aizoides 



DD. Petals obovate, 8-nerved: the 



cauline Ivs. lanceolate 60. cinerascens 



AA. Stolons or runners present: the young 

 shoots sarmentose. 



B. Fls. long-pedicelled 61. Brunoniana 



BB. Fls. almost sessile 62. flagellaris 



55. chrysintha, Gray (Leptdsea chrysantha, Small). 

 Dwarf cespitose plant, 1-2 in. high, with creeping 



