THE AGE OF SOME EXISTING SPECIES OF PLANTS, 809 
feet high. Its thin glabrate leaflets and barren stem, rather like 
that of scaber, to which it is nearly allied, are features that readily 
catch the eye. 
R. panuipus W. & N. (sec. Nyman = R. obliquus Wirtg.) :— 
Stem citakie, angular, not furrowed, hairy and setose; prickles 
slender, weak, declining from a narrow compressed base, uni- 
formly pale ; leaves quinate ; ; leaflets pote patently dentate, 
iry on es, at i 
Wavy, setose, its prickles more slender and declining; sepals 
reflexed, triangular- ae fruit anil often undeveloped 
under shade.— me per ¥ 
ENECIO SQUALIDUS os iv Soutn Somerset.—This plant had 
have recently received specimens e kindness of Dr. 
or, of Halse, who informs me - has become quite 
naturalized on walls about Taunton. It was first recorded for 
the county by = late Dr. Southby, of Bulford, “Wilts, in 1820.—T. 
RUGES FLowE 
THE AGE OF SOME EXISTING SPECIES OF PLANTS: 
BEING THE ADDRESS TO THE BroLoGicaL SECTION oF THE 
Britisn Association at BrrMincHAM 6. 
By Witiiam Carrutuers, Pres. L.S., F.B.S., President of the Section. 
With additions by the Author. 
In detaining you a few minutes from the proper work of the 
Section, I propose to ask your attention to what is known of the 
en oa ently made the subject of ae bat to to handle it 
requires a more lively imagination 
perhaps than it is desirable to senda in how stnatly scientific 
Speen 
rature of science is of little, if any, a, in tracing the 
eter 
ut I 
porating as they do the most advanced observations of science, and 
et in the most exact es oo to anpply the = 
