228 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
lanate. Annual. Stem erect, i8 inches or less in height, much 
branched. Branches axillary, crowded at base of stem. Leaves 
pinnatifid ; pinme short, distant, unequal, unequally toothed, curled. 
Lower leaves with apparently a broad petal, upper auricled, clasping ; 
top leaves terminating in a blackened seta. Flowers in terminal 
3—7 headed cymes. Fed. unequal 1-2 fld., with 2-3 subulate 
sphacelate bracts. Cal. subcylindrical. ovate at base, with narrow 
linear ligules, sphacelate at top : inner about 20 : outer 18 adpressed, 
T shorter. Anthode with 11-12 ray florets : disc rather prominent, 
hemispherical — H. J. Riddelsdell. 
Senecio^ sp. (B.). Cardiff Docks, Glamorgan, v.-c. 41, June 1905. 
This is very near S. vulgaris, but seems to differ in deep and pro- 
fusely toothed cutting of leav^es, in few-flowered cymes, in less cylin- 
drical anthodes (with rounder base), which are also rather larger ; and 
somewhat longer ped., as well as in ray florets. All the specimens sent 
are from o?ie large plant, which showed no central stem ; the stems 
were arranged round the root, and were all nearly erect from a de- 
cumbent base. — H. J. Riddelsdell. “ Not vulgaris, but looks 
intermediate between that and vernal is.” — A. Ley and W. R L. 
Senecio, sp. (C.) Cardiff Docks, v.-c. 41, nth April 1906. I 
suppose only S. vulgaris var. radiatus, Koch., but if so, much more 
hairy than usual ; the foliage was quite grey with long dense hairs as 
well as from a powdered look of the surface, and the habit was so 
remarkable as to be worth a note. A dwarf plant, with stems (none 
in the centre) arranged in a circle, ascending : so compactly placed, 
and with the flowers so numerous, as to form an almost unbroken 
ring of colour. The plants would have been a suitable garden 
ornament, and were very distinct in appearance from the ordinary 
var. radiatus which abounded in the neighbourhood. — -H. J. Rid- 
delsdell. “ These are very puzzling plants. Forms of the allied 
European species N. crassifolius, S. gallicus, and S. vernalis, are 
difficult to discriminate in the dried state. A. and C. are very like 
vernalis, but that usually has longer peduncles, and the anthode is 
more hemispherical. Crassifolius is eliminated by those specimens 
having black points to some of the phyllaries, whereas in crassifolius 
they are concolorous, the leaves too in that plant are thicker in 
texture. Gallicus has black achenes, these are brown, studded with 
stiff hairs on the ridges, the leaf outline too is different. N. rupestris 
is a plant I am not well acquainted with, its ally S. nebrodensis, in 
description, comes near to these, but I should be inclined to consider 
them hybrids of vulgaris x squalidus {— x Baxteri, Druce), the 
influence of the latter being shown by the larger anthodes with con- 
spicuous ray florets, by the sharply pointed lips to the leaf divisions 
and by the smaller amount of wool. The achenes have a good 
deal of silk hair on the ridges. About 70 % of the achenes were 
