SEDUM 



SEDUM 



3127 



FT. Margin of If. dentate-cre- 



nate 45. oppositi- 



EE. Plants glabrous. [folium 



F. Lrs. noticeably petioled... .46. populifolium 

 FF. Lrs.'sessile or nearly so. 

 G. Arrangement of Its. in 



whorls of 3 47. Sieboldii 



GG. Arrangement of Its. oppo- 

 site or alternate (rarely 

 in whorls of 3 in Xo.j9). 

 H. Base of ITS. more or 



less cordate-das ping AS. maximum 

 HH. Base of Irs. more or 



less cuneate. 

 i. The Irs. opposite, 

 rarely in whorls of 



3 49. spectabile 



ii. The hs. alternate 



(rarely opposite 



in JVo. 52). 



j. Fls. greenish 



white; sepals 



broad-deltoid.. .50. alboroseum 

 jj. Fls. some shade of 



pink. 

 K. Margin of ITS. 



nearly entire.ol. telephioides 

 KK. Margin of his. 

 strongly den- 

 tate. 



L. Blades of Its. 

 obi ong - 



orate 52. Telephium 



LL. Blades of Irs. 

 lanceolate 

 or elongate- 

 lanceolate. 53. Fabaria 

 DD. Lf. -blades Y^in. or less broad in 



the widest place. 

 E. Lrs. of the barren shoots in 



whorls of 3 54. ternatum 



EE. Lrs. not in whorls of S. 



F. Surface of Irs. densely pap- 

 illose 55. primuloides 



FF. Surface of Irs. not densely 



papillose. 

 G. Arrangement of lower Its. 



opposite. 



H. Petals ovate-oblong. . .56. cyaneum 

 HH. Petals lanceolate to 



lanceolate-oblong. 

 I. Outline of Irs. sub- 

 orbicular 57. Ewersii 



n. Outline of Irs. spatu- 

 late or oborate- 



cuneate 58. stolonifemm 



GG. Arrangement of lower 

 Irs. alternate (rarely 

 opposite in Xo. 63). 

 H. Sepals blunt, oblong or 



iinear-oblong. 



I. Apex of If. refuse. . . 59. Nevii 

 n. Apex of If. deltoid- 

 acute 60. retusum 



HH. Sepals acutish, lan- 

 ceolate. 

 j. The Irs. oblong- 



spatulate 61. Cepaea 



jj. The Irs. more or 



less orbicular. 

 K. Margin of If. 



entire 62. Anacamp- 



KE. Margin of If. [seros 



crenate at the 

 very obtuse 

 apex 63. stellatum 



1. acre, Linn. (S. neglectum, Ten.). STONECROP. 

 WALL PEPPER. LOVE ENTANGLE. Fig. 3583. Peren- 

 nial, glabrous, eespitose: barren sts. creeping, branched, 

 about 2 in. long; fl.-sts. 2-3 in. high: Ivs. minute, about 

 J^in. long, fleshy, ovate, crowded, gibbous at base, ses- 

 sile: fls. yellow," about J^in. across, in 1-sided cymes, 

 which have 2-5 forks; sepals If .-like; petals lanceolate. 

 Eu., X. Afr., E. Asia, and naturalized in N. Amer. Gn. 

 27, p. 316. This is the commonest native species in 



England and one of the commonest in cult. Thrives 

 best in poor soil and is a good ledge-plant and is fre- 

 quently used for covering rather arid spots which would 

 otherwise be bare. The Ivs. have an acrid taste. Var. 

 alburn, Hort., is a white-fld. form. Var. aureum, Mast., 

 has the Ivs. and shoot-tips bright golden yellow in spring. 

 The yellow tint is lost later in the summer, but the 

 variety is never so robust as the green form. Excellent 

 for spring bedding, to give a bit of color. Var. elegans, 

 Mast., has the tips and young Ivs. pale silvery. More 

 delicate than var. aureum. and not so effective. Var. 

 hawaianum, Hort., is offered in the trade. Var. ml jus, 

 Mast., is larger and more robust than the type: Ivs. in 

 7 rows, deltoid-ovoid, scarcely auricled at base: fls. 

 %in. across, in a 2-parted cyme, with a central sessile 

 fl".; sepals linear-oblong. Morocco. Var. Maiveana, 

 Hort., is said by the trade to be the same as var. 

 hawaianum. Var. sexangulare, Hort., is offered in 

 {he trade; it probably is S. sexangulare. 



2. Stahlii, Solms. Perennial, trailing, much branched, 

 puberulent: sts. green or pinkish; fl.-sts. 4-6 in. high: 

 Ivs. opposite or nearly so, sessile, nearly round in 

 cross-section, ovoid or ellipsoid, J4~H m - long: fls. 

 vellow, 7-9 lines across, in few-branched terminal 

 cymes, the branches of which are recurved; sepals 

 puberulent, linear-oblong; petals lanceolate, with a 

 short dorsal awn just below the apex. Mex. 



3. multiceps, Coss. & Dur. Perennial, about 2-6 in. 

 high, base subshrubby, much branched: barren shoots 

 flexuous or erect, bearing dense rosettes of Ivs. at their 

 tips; fl.-sts. usually taller, erect: Ivs. J^-^in. long, 

 glaucous or pruinose, pinkish and papillose, linear or 

 oblanceolate, subterete: fls. pale yellow, about Min. 

 across, 5-merous, in many-branched, 2-6-fld., scorpioid 

 cymes; sepals linear-oblong; petals oblong-lanceolate; 

 anthers pale yellow. Algeria. G.C. II. 10:717. 



4. sexangulare, Linn.? (S. acre var. sexangulare, Godr. 

 S. boloniense, Lois. -S. Forsterianum, Reichb., not 

 Smith. S. pulchettum, Hort., not Michx.). Perennial, 

 glabrous: barren shoots ascending 2-3 in., branched; 

 fl.-st. erect, 2-3 in. high, very slender: Ivs. densely 

 crowded in 6-7 rows, about 2 lines long, linear-cylindri- 

 cal, slightly gibbous at base: fls. yellow, %in. across, in 

 a 3-5-branched umbellate cyme, 1-3 in. diam.; sepals 

 linear-oblong; petals lanceolate. Eu. The Linnean 

 material probably differs very little from S. acre, but 

 the horticultural material (especially the European) 

 may be distinct. 



5. tenuifdlium, Strobl. (S. amplexicaule, DC. Sem- 

 pemvum tenuifdlium, Sibth. & Smith). Perennial, gla- 

 brous, evergreen : barren branches 2-4 in. long, slender, 

 wiry, ascending; fl.-sts. decumbent, ascending, about 

 6-9 in. high. : Ivs. of the barren shoots dilated and mem- 

 branous at base, gradually tapering to a long awl-like 

 point; of the fl.-sts. alternate, sessile, J^in. long, terete, 

 with a membranous auricle at base: fls. numerous, 

 golden yellow, secund in 2-forked cymes, with a sessile 

 fl. in the fork; sepals ovate, oblong, acute, united below 

 into a cup-shaped tube; petals oblong-lanceolate, }in. 

 long, keeled; filaments greenish, anthers yellow. Medit. 

 region. There are often 6-10 petals in this species. 



6. stenopetalum, Pursh. Perennial, tufted, glabrous: 

 sts. 3-6 in. high, erect from a decumbent base: Ivs. 

 crowded on the barren shoots, sessile, linear or lanceo- 

 late, Hin. long, terete: fls. bright yellow, in much- 

 branched scorpioid cymes; sepals subulate; petals 

 linear-lanceolate, acuminate. Alberta to S. D., Neb., 

 New Mex., and Calif. 



7. sannentdsum, Bunge. Perennial, glabrous: shoots 

 slender and prostrate : Ivs. crowded, opposite or whorled, 

 *4-%in., linear, terete or slightly flattened: fls. bright 

 yellow, J^in. across, numerous, in a flat-topped, umbel- 

 late, 3-5-forked cyme, with a solitary fl. in the forks; 

 branches recurved, the fls. on the upper surface only; 



