27 
4. S. opposiTiFOLiA. Purple Saxifrage. April. 1/ 
On the top of Inglehorongh. Very abundant on the east side of 
Pennigent, seven miles north east of Settle. 
5. S. TRIDACTYLITES. Rue-leaved Saxifrage. April — May. O 
On old walls and roofs. Heslington, Strensall, &c. near York. 
Bradford. Ilkley. Near Richmond, abundant. On walls on the 
side of the Tees, Barnard Castle. Near Settle. Ganthorpe. Ter- 
rington. Roche Abbey. Near Conishro’ Castle, and other places, 
near Doncaster. Ruswarpe, two miles south west of Whitby. 
6. S. HYPNOiDES. Mossy Saxifrage. May — ^June. % 
W est end of Penhill. Abundant about Malham and Settle, in alpine 
limestone pastures, both in dry and moist situations. Falcon clints, 
Teesdale. Wensleydale. 
7. S. UMBROSA. London-pride Saxifrage. June. % 
In Thorp Arch woods. In Hesletine gill, Littondale, ten miles 
north north-east of Settle. Londeshro’. In a lane about half a 
mile from Haworth, leading to Isle in Oxenhope, in great abundance. 
8. S. STELLARis. Starry Saxifrage. June — July. % 
On wet shady rocks. On Inglehorongh. Londeshro’. Above Mid- 
dleton, Teesdale. On the north east of Pennigent. 
ORDER XXIII. salicaria:. 
1. PEPLIS. 
1 . P. PORTULA. Water Purslain. July — August. O 
In watery places. Tilmire, Stockton forest, and several other places, 
near York. 
2. LYTHRUM. 
1 . L. SALiCARiA. Purple Loosestrife. July — August. 
In ditches and watery places, frequent. 
ORDER XXIV. rhamnea:. 
1. RHAMNUS. 
1. R. cATHARTicus. Buckthom. May. h 
In hedges and waste ground near York, frequent. Knareshro’. 
Thorp Arch. Richmond. Settle. Kippax. Doncaster, &c. 
2. R. FRANGULA. Berry-bearing Alder. May. 1? 
In damp woods and hedges. Askham hog, Langwith lane, «fec. 
near York. Leckby carr. Cawklees wood, near Hovingham. 
Hildenley wood, near Malton. 
The larva of Polyommatus Argiolus, (the Azure Blue,) feeds on this plant; as also does that of 
Gonepteryx Rhamni, (the Brimstone Butterfly,) and on R. Catharticus. Mcidium Rhanini may 
frequently be found on the leaves at Langwith, near York. 
