Crassulaceae. — 291 
PETROGETON., *) 
: Cal. 5partitus corolla plus minus brevior. Petala 5 lani- 
 €eolata patentia. Stamina 5 cum petalis inserta, filamentis - 
 Wubulatis.  Carpella 5 apice divergentia in stylum brevem 
 fliformem exeuntia 6-8 sperma. Squamae 5 sübspathulato- 
 Wüncatae parvae. Herbae perennes. Folia opposita petiolata 
plerumque late crenata. Flores axillares  subumbellati aut 
> pen solitarii. 
|. 1854. PETROGETON typicum — taule erécto subdicho- 
tomo, foliis éarnosulis reniformi - orbiculatis repando - crenatis longe 
petiolatis, floribus terminalibus composite subumbellatis, — In locis 
humidis (altit, III, IV) in rupium fissuris laterum montium prope 
fumen ,Hexrivier" (Worcester) Oct, — Petioli imi folio ps 
que 3-4plo longiores. Flores pallide rosei. 
ia f. minus — floribus axillaribus et terminalibus, — In locis 
- humidis (alti, III, IV) in rupium fissuris laterum montium ,,Ce- 
lerberge"" (Clanwilliam). Oct. 
= 1855. PETROGETON patens — caule erectiusculo subdi- 
thotomo, foliis subradicalibus reniformi-orbiculatis sublobato - incisis 
: petiolatis, floribus terminalibus dichotomo - umbellatis patentibus, — 
: In locis humidis (altit, III) ad rupes abscissas laterum montium 
in valle » Tulbagh" prope ,, Waterfall (Worcester). Nov, — Pe- 
. diċelli capillares,  Petioli folio 2 -3plo longiores, 
| 1856. PErRoGETON Umbella — Crassula Umbella Jacq. 
| Septas Umbella D C. prod. 3. p. 383. — m solo ericeto  ( altit, 
: " An inter saxá laterum montium prope ,,Brackfontein" remi 
4857. PerhooETON dentatum — Crassula dentata Thunb. 
A. cap. p. 293. — Ad rupes abscissas (altit. IV) in latere orien- 
ali montis , Tafelberg” (Cap). Jan. 
. 4858. PrrRoGETON alpinum — caule dichotomo decum- 
bente bumillimo, foliis obovatis obovato-subrhombeis v, spathulato- 
cünedfis, pedicellis in dichotomiis capillaribus ifloris folio vix lon- 
— Ad rupes abscissas (altit. V) in vertice montis ,,Ta- 
prope Kloof” (Cap). Sept. — Caulis vix pollicaris, 
*) Nomen compositum a graeco: zrérgoc et yétov. 
19 * 
