156 ENGLISH BOTANY. 
rescence. Lower leaves withering before the flowers expand, and 
as well as the middle ones, pinnatifid, with a narrow undivided strip 
on each side of the midrib, and a few long distant divaricate or 
falcate lobes with their length greater than their breadth on each 
side ; terminal lobe deltoid, acuminate or hastate ; upper leaves 
strapshaped, undivided, with rather long acute spreading auricles, 
all quite flat and repand-denticulate or entire, with projecting 
callous points. Anthodes numerous in a compound umbellate 
corymb. Peduncles and phyllaries thickly clothed with rather 
short olive-green gland-tipped hairs, very rarely glabrous. Achenes 
prismatical, very slightly compressed, with 4 of the ribs much 
larger than the others ; the ribs indistinctly transversely rugose. 
In marshes, by the sides of tidal rivers, and in fens. Very rare. 
It has occurred in Kent, Essex, Suffolk, Norfolk, Cambridge, and 
Hants ; but I am not aware that it is to be found now (1865) 
except among beds of reeds on the banks of the Thames behind 
Plumstead Butts, immediately below Woolwich, where it was 
rediscovered a few years ago by Mr. A. Irvine. 
England. Perennial. Early Autumn. 
B-ootstock producing short thick fleshy subterranean shoots, 
terminated by closed buds rising vertically close together, so that 
the roots do not sj:>read over the ground. Stem 3 to 7 feet high, 
with a very large hollow in the centre, angular, from the midrib 
of the leaves being decurrent. Leaves very numerous, the lower 
ones soon withering, those on the middle of the stem and above 
it with few lateral lobes, but these, when present, are long and 
narrow and project abruptly beyond the general outline of the leaf; 
auricles very acute. Peduncles elongate, produced so nearly from 
one point, that the inflorescence at first sight appears to be a 
compound umbel, the outside branches longer than the inner. 
Anthodes f to 1 inch across. Elorets pale-yellow. Achenes pale 
lawn-colour, quadrangular from the prominence of 4 of the ribs. 
Pappus silky, but slightly exceeding the phyllaries. 
A very distinct species, which can never be mistaken when it 
has once been seen, differing from the other British species in the 
same way that the Accipitrina group of the genus Hieracium does 
from the Pulmonarea section ; but the large marsh form of S.arvensis 
has been frequently recorded for it by persons unacquainted with 
S. palustris. The stem of the latter* is perfectly straight, much 
stout <t i n proportion to its height, with the central hollow greater. 
The leaves are narrower, much more gradually and more acutely 
pointed, and the lobes in the lower ones project abruptly from the 
general outline of the leaf; all the leaves have the margins Hat and 
