OF GIBRALTAR. 67 



" inundation," contains large quantities of sea-weed ; 

 the removal of which is almost the constant occupation 

 of several men, as its accumulation rapidly increases, 

 and it is very liable to putrefy, the water in this reservoir 

 being a mixture of rain and sea-water. Ruppia ros- 

 tellata, and a species of Potamogeton, are found in 

 this basin. On a small bank to the right may yet 

 remain a few specimens of Lotus tetragonolobus, 

 Physalis somnifera, Datura Metel, and Silene vesper- 

 tina. It was here that I gathered the Centaurea solsti- 

 tialis, which might have been introduced, as this bank 

 is a depository for rubbish. The glacis in this neigh- 

 bourhood is covered with Cucubalus behen, and a 

 variety of grasses, among which are Dactylis hispa- 

 nica, and Hordeum murinum. 



Passing along the moat, after leaving the bay-side 

 guard, a road to the right leads to Catalan-bay, almost 

 round the northern side of the rock, which has lately 

 been extensively quarried for stones to erect the new 

 works ; at the same time making this part of the rock 

 more inaccessible to the enemy. On the left of the 

 road is the neutral ground, and near its edge are 

 found fields of Ranunculus bullatus, and R. flabella- 

 tus : later in summer these are succeeded by the large 

 variety of Thrincia hirta. The road to the bay ter- 

 minates in a bridle-path, cut through the sandy bank, 

 which extends for more than half-a-mile eastward, and 

 in a crescentic-shaped part is situated the small vil- 

 lage, seen now from the highest part of the road. On 

 this bank grow, in great abundance, Ononis ramo- 

 sissima, Delphinium peregrinum, and Matthiola Brous- 



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