— 250 — 
bands of green tissue which have about two layers of low 
palisade cells supported by transverse storage-cells. Where 
root and stalk merge into one another, the axis is thickened 
and succulent. No green tissue occurs here but the collen- 
chyma extends all round. 
Fig. 72. Agriophyllum minus. June. 
Agriophyllum latifolium F. & M. 
This resembles the previous species, but the lower leaves, 
which gradually disappear, are ovate-elliptical to broadly 
cordate with pinnate venation (fig. 74). They are covered 
with scattered stellate hairs and end in a spine. Higher up 
