35 
AONIUM Youngianum. 
Mr. Young's Houseleek. 
DODECANDRIA DODECAGYNIA. 
Nat. ord. CRASSULACE X. 
ZEONIUM. Botanical Register, 1841. fol. 61. 
Æ. Foungianum ; caule fruticoso crasso, foliis subcartilagineis crassis lucidis 
saturaté viridibus obcordato-spathulatis basi subtetragonis apice obsoleté 
mucronatis margine attenuatis breviter ciliatis. Webb Histoire Natu- 
relle des isles Canaries, Vol. III. p. 197. 
This plant, hitherto only known from the brief Latin phrase 
above quoted, flowered in June, 1843, in the nursery of Mr. 
Wm. Young of Milford, near Godalming, after whom it was 
named by Mr. Barker Webb, who discovered it in the 
Canaries. : 
It appears nearly allied to ZEonium (Sempervirum) arbo- 
reum, which, according to Mr. Webb, does not grow in the 
Canaries ; but we have no information concerning it. 
Fig. l. represents a section of the ovaries. Fig. 2. a 
young petal and stamen some time before the flower expands. 
July, 1844. P 
