ON ANACHARIS ALSINASTRUM. 361 
Farfara, Sonchus arvensis, Cnicus arvensis, are all sappers and 
miners, michievous foes in agriculture; but Cnicus arvensis, the 
most formidable, armed cap-d-pie, defies the hand that dares to 
pluck it from its usurped abode ; those are the most troublesome 
on the stiffer soils. There are many more less troublesome which 
infest the lighter soils. 
Rubus Ideus: I have not found this plant so decidedly abori- 
ginal as about the eastern base of the Titterstone Clee Hill, in 
the woods, and by the sides of rivulets over an extensive locality, 
and also up the side of the mountains amongst the masses cf 
basalt, above cultivation, to about the altitude of 1500 feet. 
Alien plants, and occasional visitors in the neighbourhood of 
Bewdley :—Euphorbia Lathyris, Leonurus Cardiaca, Ginothera 
biennis, Nicotiana rustica, Lunaria rediviva (Honesty), Armoracea 
rusticana, Anthriscus Cerefolium, Camelina sativa, Amaranthus 
Blitum, Borago officinalis, Antirrhinum majus, Carduus ma- 
riana, Cheiranthus Cheiri, Chenopodium olidum, Datura Stra- 
monium, Dianthus Armeria, Coronilla verum, Tragopogon porri- 
folius, Rumex sanguineus, Impatiens Noli-me-tangere, Clematis 
Vitalba, Campanula rapunculoides, Lamium maculatum. 
Hedera hibernica (Irish Ivy), a variety or species, much 
larger .than Hedera Helix: this Ivy was introduced by Sir Kd- 
ward Winnington, Bart., and first planted at Wyntesdyne about 
eighty years since; it is now very extensively planted against 
houses and walls in the town of Bewdley and its precincts. 
On Anacharis Alsmastrum. By W. CuHEsaire. 
Recollecting the alarm caused by the sudden appearance and. 
rapid growth of Anacharis Alsinasirum (Bab.), I think it strange 
that no one has taken the trouble to prove or disprove the dan- 
ger to navigation (at least, not that I have seen) ; and hope a few 
observations on the behaviour of the plant in the Avon and 
other waters near Stratford-on-Avon may uot be uninteresting. 
I found Anacharis in the Avon, near Clopton’s Bridge, June 6, 
1853, and commenced a close search for it in other places in the 
river, but could only find it in two places lower down, and not up 
the river at all. On finding the plant so very sparingly distri- 
buted, I fancied it might possibly have come down the canal, 
N. S. VOL. I. 3A 
