SED0M 



Section I. Herbaceous Perennials, i. e., plants that 

 die down to the root during u-intir. {In greenhouse 

 culture some become evergreen.) 



A. Flou'ers unisexual 1. roseum 



AA. Flowers bisexual. 

 B. iM. narrotv. 



c. Arrangement of Ivs. oppo- 

 site 2. Asiaticum 



cc. Arrangement of Ivs. alter- 

 nate. 



D. Height about 4 in .i. Middendorfiianum 



DD. neight m in. or more. 

 E. Utems glabrous. 



F. Sepals equal 4. Aizoon 



FF. Sepals unequal... 5. Maximowiczii 



EE. Stems pilose 0. Selskyanum 



BB. Lvs. broad: roots tuberous. 

 c. Arrangement of Ivs. scat- 

 tered {rarely opposite in 

 S. Telephium). 

 D. Margin of Ivs. dentate. 7. Teleptiium 

 DD. Margin of Ivs. nearly 



entire 8. telephoides 



cc. Arrangement of Ivs. oppo- 

 site {sometimes in S's 

 in S. spectabile). 

 D. Suds obox'oid, abntptly 



pointed 9. maximum 



DD. Buds long and pointed.lO. spectabile 

 Section II. Evergreen Perennials. Foliage does not 

 die during the winter. 

 A. Foliage flat, broad and rela- 

 tively thin: Ivs. spatulate or 

 wider. 

 B. Lvs. in tufts or rosettes {at 

 least those of the barren 

 shoots), 

 c. Fls. yellow: anthers yel- 

 low. 

 D. Fach fl. K in. across. .\1. spathuliJoUum 

 DD. Faeh fl. J^ in. across.. 12. obtusatum 

 cc. Fls. white; anthers red- 

 dish. 

 D. Barren shoots with Ivs. 



in S's U. tematum 



DD. Barren shoots with 



scattered Ivs 14. Nevii 



BB. I/vs. scattered, i.e., not tufted. 

 c. Stem erect: fls. whitish or 



pinkish 1."). populilolium 



cc. Stems {barren ones) pros- 

 trate. 

 D. Fls. yellow. 



E. Margin of Ivs. 

 coarsely toothed 

 above the middle. 

 F. Petals lanceolat e..lG. Kamtscbaticum 



FF. Petals linear 17. bybridum 



EE. Marginoflvs.entire.K. Japonicum 

 DD. Fls. pink, rose or 



E. Arrangement of Ivs. 

 opposite. 

 F. Base of Ivs. nar- 

 rowed 1'.). stoloniferura 



20. oppositifolium 

 FF. Base of Ivs. cor- 

 date 21 . Ewersii 



EE. Arrangement of Ivs. 



alternate 22. Anacampseros 



EEE. Arrangement of Ivs. 



in S's 2."!. Sieboldii 



AA. Foliage more or less terete: 

 Ivs. usually linear, not wider 

 than lanceolate {unless in 

 No. 28). 

 B. Apex oflvs. sharply pointed. 

 c. Fls. yellow. 



D. In florescence decurved.2i. reilexum 

 DD. In florescence not d e - 

 curved. 

 E. Cymes scorpioid 2.'j. stenopetalum 



SEDUM 



1637 



EE. Cymes umbellate 2G. sarmentosum 



cc. I'ls. lilac or white 27. pulcbellum 



BB. Apex of Irs. blunt. 

 C. Fls. yellow. 



D. Lvs. ovoid, bitter 28. acre 



DD. Lvs. oblong, tasteless . .29. seKangnlare 

 cc. Fls. white or pink. 



D. Plants usually glau- 

 cous. 



E. Anthers black 30. dasyphyllum 



T.F.. Anthers purple 31. Hispanicum 



Ei;i;. .1 vlhrrs pink 32. brevifolium 



I'll. Pluiil.s nut glaucous. 

 E. /7.^. pinkish : buds 



o-ungled 33. Lydium 



EE. Fls. while: buds ob- 

 long 34. album 



EEE. Fls. white: buds 



roundish 35. Monregalense 



Section III. Annuals or Biennials. These die after 

 flowering and fruiting. Annuals flower the first year, 

 biennials the second, 

 a. Lvs. flat, not cylindrical. 



B. Fls. scarlet 3(). sempervivoides 



BB. Fls. yellow 37. Formosanum 



AA. Lvs. more or less cylindrical. 



B. Fls. blue 38. cseruleum 



BB. Fls. dull rose or white 39. villosum 



Section I. Herbaceous Perennials (Siiecie.s 1-10). 



1. rdaeum, Scop. (S. Bhodtola, DC). Rootstock 

 thick, flesby, exhaling a perfume of rose water: height 

 6-8 in. : lvs. scattered, oblong, 1 x H in. : fls. greenish or 

 reddish purple, in a terminal flat-topped cyme about 

 1 in. across; petals 4; stamens i in the male fl., absent 

 in the female; carpels iu the female fl. 4. Summer. 

 Eu., N. Amer., Himalayas. — The only species here de- 

 scribed that has unisexual flowers. A neat-growing 

 plant suitalile f<ir rockiries or the front row of borders. 



2. Asiiticum, Spn-nt;. lliight 6-12 in. : Ivs. opposite, 

 linear, coarsely ami irrei.'iilarly toothed: fls. greenish 

 yellow, in eoniiiaet. ^^'iolpovr e) iiies, lloral parts in 5's. 

 Summer. lliin:il:i} :i-. I ii:'i\ iii.I ilniad and possibly 

 inAmerica. Ii-niin- i ; lii^'c makes it very 

 distinct. In IimM.'i h i • .'. i h ne red flowers. It 

 seems to sutVer i i.un i i,. , . 1 1 ^ . i an ordinary border 

 in winter, and sli.niM i.rol..io,j I.e w lalered under glass. 



.'1. Middendoriii4num, iVInxim. Lvs. alternate, ob- 

 lani-et.dare, dentate toward apex: fls. yellow, in a flat- 

 toppi'd ryirie. SiiiiinRT. Aniurland. —According to J. W. 

 MaiiiiiiiL'. it L-i' v^ 4 in. high, and has deep green foli- 

 afieiilinli Im,,,!!,.- a rich purple in winter. Woolson 

 say^ II ,~ .1. i,v, Iv mftcd. 



4. Aizoon, I. iiii, Ui'iijht 1 ft. ormore. usually lM-2ft.: 

 Iv-,. a 11 en I ale, ,,!,!, .i!.-].,, iei.., Pit.., eo.,r>;elv find irregularly 



fl. Maximdwiczii, lie;;el. Height ll't.: Ivs. suboppo- 

 site or alternate, nMojig-ovate or oblong-lanceolate, 

 regularlv tootlied: lis. vellow, in a dense, flat cyme. 

 July, Aug. .Japan. Amufland. Gn. 19,p.203; 27, p. 316. 

 —By .some this is considered a variety of S. Aizoon. 

 It is similar to S. Aizoon in habit but larger, differing 

 in the sepals of unequal length and in the peculiar 

 Hask-shaped fl.-buds, which are dilated below and nar- 

 rowed into a long beak above. Desirable for borders; 

 also used for carpet beds. Seeds, as well as plants, are 

 offere.l. 



G. Selski4num, Kegel. Also spelled Selskyanum. 

 Height 12-18 in.: lvs. alternate (!), serrate in the distal 

 third : fls. yellow, nearly 1 in. across, in a hollow-topped, 

 leafy cyme. Late summer. Amur., Manchuria. — Re- 

 sembles S. A izoon but has narrower and pilose leaves. 

 Offered in 1893 by John Saul. 



7. Tel^phinm, Linn. Orpine. Live-forevek. Fig. 

 2282. Height 12-18 in.: lvs. scattered, rarely opposite, 

 oblong-ovate, obtuse, dentate: fls. pink, spotted red, or 



