NATURE NOTES. 119 
According to the London Catalogue of British Plants (9th 
edition), this species is only uative in five counties, all of 
which are English, so that in all probability it is in no case 
a truly Scottish plant, though it seems well able to retain 
any habitat which it may acquire in this country. 
Near Drumshoreland, also, is the only known station in 
the Edinburgh district for the somewhat rare Pilularia 
globulifera; but, though this plant has been repeatedly 
found there during recent years, the members sought for it 
on this occasion in vain, and it has probably disappeared 
from the locality, though, owing to its inconspicuous habit 
when growing along with grass, the existence of a few 
isolated individuals may have been overlooked. 
ROBINA ORROCK. 
“ ASPERUGO PROCUMBENS.,” 
Ar an informal excursion in June 1898 to the neighbourhood 
of Joppa, we were gratified to find growing, not far from the 
shore, a specimen of that somewhat uncommon “ casual,” 
Asperugo procumbens. 
Its occurrence on the east coast of Britain is distinctly 
sporadic in character, and its presence in this district, I 
think, is worthy of being mentioned, as it may be the means 
of directing increased attention to the astonishingly extensive 
flora of our ballast heaps. ROBINA ORROCK. 
GEOLOGICAL NOTES, 
LarGE, well-formed crystals of calcite are to be found in 
an old quarry on the north side of Warklaw Hill, just above 
Colinton. 
The rock of the quarry is an amygdaloidal andesite, and 
weathers rapidly. The calcite crystals occur in druses in 
the breccia of a fault, which ranges through the quarry. 
