'282 DICOTYLEDONS. SEMPERVIV^E. 



ORDER LIX. SEMPERVIV.E. Juss. 



(Crassulacece, Juss.} 



Cal. inferior, of one piece, many-cleft. Cor. sometimes monope- 

 talous. StameJis either equal in number to the petals and al- 

 ternate with them, or twice as many, half alternate and half 

 opposite. Ovaries equal in number to the petals. Disk hy- 

 pogynous. Follicles many-seeded. Seeds small. Embryo 

 in the axis of a fleshy more or less abundant albumen. Ra^ 

 dlcle opposite the lulnm. 



Herbs with fleshy opposite or alternate leaves. Flowers alter- 

 nate, or in spikes, corymbs, or cymes. Mir I. 



1. COTYLEDON. 

 Cal. 5-cleft. Cor. monopetalous, tubular, 5-fid. Caps, 5, with 



a nectariferous scale at their base, 

 1. C. Umbilicus, leaves peltate crenate depressed in the centre, 



stem spiked with the numerous racemes of pendulous flowers, 



upper bracteas minute entire, p. 139. Rocks and old build* 



ings. 



2. SEMPERVIVUM. . 

 Cal. 12. cleft. Petals 12. Capsules 12. 

 1. S. Tectorum, leaves ciliated,, offsets spreading, p. 149, 



House-lops and walls. 



3. SEDUM. 



Cal. 4 7-cleft. Pel. 5. Caps. 5, with a nectariferous scale 

 at their base. 



* Leaves plane. 



1. S. Telephium, leaves flattish serrated, corymbs leafy, stem 

 erect, p. 139. Borders oj'jields, hedges and waste places. 



** Leaves rounded, fixed by their base. 



2. S. dasyphyllum, leaves opposite (alternate on the flowering 

 stem) cordato- ovate obtuse fleshy, stem weak, panicle gluti- 

 nous, p. 140. Rocks and walls. 



3. S. album, leaves scattered oblong cylindrical obtuse spread- 

 ing, cyme much branched, p. \40.* Rocks and wails. 



4. S. viilosum, leaves scattered oblong plane above and as well 

 as the peduncles and stems hairy and viscid, p. 140. Bogs 

 and moist rocks. 



*** Leaves rounded, produced Idow the point of insertion into a kind 

 of spur, which is pressed to the stem. 



5. S. angllcum, leaves ovate gibbous fleshy produced at the base 

 alternate, cyme bifid, p. 140. IValls and rocks. 



6. S. acre, leaves ovate gibbous fleshy produced at the base a]- 



