FK 
6e Pentandria Pentag. Septas. 
ro. Thunb. prod. 51.—Trientalis foliis sub- 
rotundis crenatis. Roy. lugdb. 538. 
Ons. Thunberg has reduced this genus to Cras- 
sula; but as the tuberous, and periodically 
- quiescent root, and whole ceconomy of the 
plant differ from genuine Crassulze, it is better 
to remain as a genus; although I have ob- 
served the number of the stamina, &c. vary 
from 5 to 7. Any strong deviation in the ex- 
ternal appearance of plants, from their nearest 
" kindred, isusually accompanied by some cor- 
responding diversity in their fructifying or- 
gans. Crassula umbella of Jacquin is sub- 
| ag as a second species, Both resemble in 
abit Cotyledon Uuibilicus and C. lutea. 
umlella. S, (Skreen) Scapi foliis duobus subcucullatis 
8. connatis in orbiculum subtrientalem: floribus 
cymoso- paniculatis, numerosis parvis.— Cras- 
X wned a7 Jacq. hort. vindob. v. 2. t. 352. 
Hasrrar C. B. S. : 
Fronxr Jul. 
Oss. Circa annum 1800, vidi pulchré crescen- 
- tem atque florentem, regio horto Kewense. 
