3088 



SAXIFRAGA 



SAXIFRAGA 



c. Infl. a few-ftd. panicle borne on a 



fl.-st. 2-4 in. high 14. tenella 



cc. Infl. 1-, rarely 2-fl.d., borne on a fl.- 

 st. about 1 in. high 15. aphylla 



BB. Plants densely cespitose: scape 1-fld. 



or few-fld., paniculate 



C. Axils of the Ivs. of the secondary 

 shoots with buds of undeveloped 

 cataphylla. 



D. Calyx-lobes mucronate 26. conif era 



DD. Calyx-lobes obtuse 28. spathulata 



cc. Axils of the hs. of the secondary 

 shoots without buds of undevel- 

 oped cataphylla. 



D. Lvs. linear 16. muscoides 



DD. Lvs. spatulate 17. androsacea 



AA. Lower Ivs. more or less digitately lobed 

 or divided (entire in Nos. 26 and 28) : 

 petals longer and broader than calyx- 

 lobes. 



B. Secondary shoots indeterminate: the 

 infl. borne in the axils of the lower 

 Ivs. 

 c. The Ivs. glandular-pilose, orbicu- 



late-digitate: fls.-sts. 3-6 in. high.18. ajugifolia 

 cc. The Ivs. not glandular, wedge- 

 shaped: fl.-sts. 1 %-3 in. high . . 19. perdurans 

 BB. Secondary shoots determinate, ending 



in an infl. 



c. Petals obovate-cuneate, attenuate- 

 clawed. 

 D. Blades of the almost sessile hs. 



oblong-cuneate 25. pedemontana 



DD. Blades of the petiolate Ivs. ovate 



or orbicular. 

 E. Divisions of the suborbicular 



or reniform Ivs. lanceolate. . 20. geranioides 

 EE. Divisions of the ovate Ivs. 



linear 21. pedatifida 



cc. Petals obovate, obovate-oblong or 



oblong, not attenuate clawed. 

 D. Plants loosely cespitose, frutes- 

 cent, the rosettes of rigid Ivs. 

 of this year far removed from 

 those of the previous year. 

 E. Lvs. cuneately attenuate to the 

 petiole; the lobes horizontally 

 spreading. 



F. Lower Ivs. incise 3-lobed; 

 the midlobe usually 



entire 22. Camposii 



FF. Lower hs. pedately divided; 



the midlobe 3-parted 34. obscura 



EE. Lvs. trifurcate, bowed-attenuate 

 to the petiole; the lobes 

 divaricate. 

 F. Petiole deeply grooved; the 



midlobe of If. entire 23. canaliculata 



FP. Petiole not deeply grooved: 

 the midlobe of If. 3- 



toothed 24. trifurcata 



DD. Plants densely cespitose, the 

 rosettes of Ivs. of this year close 

 to those of the previous year 

 (specimens of S. decipiens 

 excepted). 



E. Axils of the hs. of the second- 

 ary shoots without buds of 

 undeveloped cataphylla. 

 F. Petals oblong, equaling or 

 rarely exceeding the calyx- 

 lobes in width 36 . moschata 



FF. Petals obovate or obovate- 

 oblong, exceeding the 

 calyx-lobes in width. 

 G. Nerves of the hs. usually 



prominent. 



H. Blades of hs. sessile or 

 short - petioled; the 

 midlobe oblong .... 33. ezarata 

 HH. Blades of hs. with 

 petioles as long as 

 the blades: the mid- 

 lobe linear 35. mixta 



GG. Nerves of the hs. not at 

 all prominent. 



H. Divisions of the hs. 



more or less acute. ...31. decipiens 

 HH. Divisions of the hs. 



more or less obtuse. .32. cespitosa 

 EE. Axils of the hs. of the second- 

 ary shoots with buds of 

 undeveloped cataphylla. 

 F. Calyx-lobes mucronate. 

 G. Lvs. undivided and ses- 

 sile 26. conif era 



GG. Lvs. 3-lobed and petioled.27. hypnoid es 

 FF. Calyx-lobes obtuse. 



G. The hs. all undivided. . . 28. spathulata 

 GG. The hs. (the lowest 



excepted) lobed. 

 H Calyx-lobes ovate-tri- 

 angular, about equal- 

 ing the length of 



the tube 29. globulifera 



HH. Calyx-lobes ligulate- 

 lanceolate, twice the 

 length of the tube. . .30. Maweana 



Subsection HOLOPHYLL.<E. 



14. tenella, Wulf. Lax, cespitose, 2-4 in. high, with 

 foliose, prostrate or erect caudicles: sts. erect, slender, 

 glabrous: Ivs. yellow- or apple-green, shining, thin but 

 rather stiff, lower and also cauline, linear-subulate, 

 cuspidate-aristate, margin setulose-ciliate or glabrous, 

 glandulose-ciliate toward the base: infl. terminal, few- 

 fld. panicles with slender pedicels longer than the fls. : 

 fls. white or yellowish white; calyx-lobes triangular, 

 acute, equaling the tube, glabrous; petals obovate- 

 oblong, recurved above, 3-nerved, twice as long as the 

 calyx-lobes. June, July. Mountains of Cent. Eu. 



15. aphylla, Sternb. (S. leptophylla, Froel.). Loosely 

 cespitose, about 1 in. high with numerous sparsely 

 foliate caudicles with rosettes at the top: sts. sparsely 

 glandular-pilose: Ivs. light green, rather thin, entire 

 or 3-5-cuspidate, the divisions ovate-lanceolate, obtuse: 

 infl. almost leafless 1-fld., rarely 2-fld. glandular scapes: 

 fls. light yellow; calyx-lobes ovate, acute; petals linear, 

 acute, equaling the calyx-lobes. June, July. Moun- 



tains of Eu. 



16. muscoides, All. Densely cespitose, 1-2 in. high, 

 with short caudicles: sts. columnar, densely imbricate- 

 foliose, ashy pilose: Ivs. linear, rounded-obtuse, base 

 attenuate, when dried 3-nerved, apex cinerous: infl. 

 numerous, terminal, few-fld. racemes or more seldom 

 several-fld. panicles with very short pedicels: fls. white 

 or yellowish white (rarely citron-yellow or purple); 

 calyx-lobes ovate, obtuse; petals round-obovate, very 

 obtuse, smoothly emarginate, 3-nerved, twice as long as 

 the calyx-lobes. July, Aug. High mountains from the 

 Pyrenees to Austria. Gn. 76, p. 615. Frequently con- 

 fused with S. moschata and S. cespitosa. A strictly 

 Alpine species forming a dense moss-like cushion, the 

 uppermost Ivs. of which are reddish toward the base 

 and fresh green toward the apex and are rather fleshy. 

 Suitable only for alpine-gardening. Var. fdliis-varie- 

 gatis, Hort., is a form with yellow-and-white varie- 

 gated Ivs. Very likely this really is a variety of S. 

 moschata. 



17. androsacea, Linn. Cespitose, 1-3 in. high (pos- 

 sibly more), with the basal and lower Ivs. aggregated 

 and sessile: Ivs. dark green, shiny, spatulate or obo- 

 vate, cuneate, apex entire or 3-5-toothed, the teeth 

 short and acute, the central twice longer than the 

 lateral, when dry 5-11-nerved, margin ciliate, at the 

 top glandulose-ciliate; cauline Ivs. oblong-lanceolate: 

 infl. numerous, almost naked, sparsely glandular, 1-3- 

 fld., rarely 5-fld. scapes: fls. small, clear white or green- 

 ish white; calyx-lobes ovate, obtuse, the base and 

 margins glandular; petals obovate-oblong, 3-nerved, 

 at the top emarginate, the uppermost portion reflexed, 

 twice longer and broader than the calyx-lobes. June- 

 Aug. Mountains of S. and Cent. Eu., also the Baikal 

 region of Asia. 



