222 The Botanical Gazette. [July, 
with several other plants, which first occupy the soil, prepared 
y the ‘‘Psamma-vegetation,” and which, to some extent, 
contribute to the stability of the sand; for instance, Sedum 
acre, Taraxacum, Sonchus, Leontodon, Carex arenaria, Thy- 
mus, etc. Some of them propagate by root-shoots, while 
others have widely creeping rhizomes, e. g., Carex arenaria, or 
runners above ground. Weingaertneria differs from these by 
its cespitose growth which is due to a profuse development 
of shoots from the axils of the lowest leaves. The young flowers 
are well protected by the large leaf-sheaths, as is also the 
case with Psamma. ; 
a thick cuticle is characteristic. Species of succulent 
are comparatively few in number.— THEO. HOLM. 
