CI. 14.] SAXIFRAGE. 163 



surrounding a farinaceous Albumen. Stem herbace- 

 ous, or somewhat shrubby. Leaves opposite or alter- 

 nate, succulent." 



TillcEa, Crassula, Cotyledon, Rhodiola, Sedum, Sem- 

 pervivum, fig. 242, and the variable genus Septets, per- 

 haps not distinct from Crassula, are all Jussieu's cer- 

 tain genera ; Penthorum being placed at the end, as 

 their ally . This last however is as genuine a specimen 

 of the Order as any of them, the Capsules being only 

 more united into one, opening at the inner margin of 

 each cell, as in the rest, and by no means circumscissce , 

 or bursting all round, as the author, by some accident, 

 has been led to suppose. The Petals are often partly 

 or entirely wanting, in which case the segments of 

 the Calyx become multiplied. 



Ord. 84. Saxifrage. " Calyx either superior, or 

 more frequently inferior, in 4 or 5 segments. Petals 

 4 or 5, rarely wanting, inserted into the upper part 

 of the Calyx, alternate with it's segments. Stamens 

 as many, or rather twice as many, inserted into the 

 same part. Germen simple. Styles and Stigmas 2. 

 Fruit often capsular, many-seeded, of 1 or 2 cells, 

 opening at the top with 2 valves, whose inflexion 

 forms the partitions. Embryo incurved, surrounding 

 a farinaceous, or somewhat solid, Albumen. Stem 

 usually herbaceous. Leaves alternate, rarely oppo- 

 site, occasionally rather succulent." 



Sect. 1. Fruit superior, capsular, with 2 beaks at 

 the top. Heuchera, Sa.rifraga, fig. 243, Tiarella and 



m 2 



