112 



THE NATURALIST. 



which, last, with an exotic ally, A. retrojlexus, is of fi-equent occurrence in 

 this neighbourhood. Brompton Cemetery produces Geranium pyrenaicum in 

 abundance ; also Diplotaxis muralis, Erigeron canadensis, and a permanent 

 variety of Ranunculus hulhosus, which has white flowers. A wall at tbe 

 entrance of Walnut-tree Walk, close by, produces Arenaria serpyllifolia and 

 Ldnaria Cymhalaria. In the grounds atta3hed to Hollywood School, on the 

 opposite side of the road, the two Yellow Wood-Sorrels, Oxalis corniculata, 

 and O. stricta, annually occur j the former was, in 1861, extremely plentiful 

 upon newly turned soil. 



Battersea. — Many changes have taken place here since the students of 

 the London Hospitals were wont to make " Battersea Fields" the scene of 

 their botanical studies ; but many plants may still be obtained by the dili-- 

 gent observer. The embankment of the river produced last year several 

 plants of Coriandrum sativum, also Lepidium Draha, Nasturtium sylvestre, 

 N. terrestre, Armor acia ampliihia, Tlilaspi arvense, Erysimiim clieir- 

 anthoides, Chenopodium ficifolium, Phalaris canariensis, and Apera Spica- 

 venti, all in some abundance. On waste ground, just outside the Park, 

 at the Battersea end, are two or three fine plants of Diplotaxis tenuifolia, 

 which is also plentiful as a weed in the beds inside. D. muralis and Eri- 

 geron canadensis abound here ; Mercu7'ialis annua is found in several places 

 about the Park. On the banks of a ditch which runs through Battersea Park, 

 two of the " old inhabitants" of the district still hold their ground. These 

 are Saxifraga granulata and Polygonum Bistorta, both of which have 

 survived the " alterations" and appear likely to do so for many years 

 to come. The famous waste ground near Wandsworth steamboat pier 

 is in Battersea parish ; it still affords abundance of Lepidium Draha and 

 Melilotus parviflora ; Datura Stramonium was plentiful here last year, and 

 Trifolium resupinatum was not quite extinct. Linaria Cymbalaria is general 

 on old walls, and Saxifraga tridactylites is frequently found thereon. 



Wandsworth CoMMOiSr, — On a piece of waste ground close to the entrance 

 to the common, Torilis nodosa is abundant ; Erysimum cheiranthoides occurred 

 here last year, also Rumex maritimus in plenty, and a fine plant of Hyoscy- 

 amus niger. AcJiillea Ptarmica, Serratula tinctoria, Stacliys Betonica, and 

 Scutellaria minor occur in various parts of the common; Villarsia nymphce- 

 oides and Stratiotes aloides were, some few years since, planted in one of the 

 ponds, but these have been exterminated, or " crowded out" by another in- 

 troduction, Anacliaris Alsinastrum, the pretty pink flowers of which may now 

 be seen floating on the top of the water. Sparganium simplex, Myosotis 



