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JOURNAL OF THE PLYMOUTH INSTITUTION. 
chorum, and I have not met with it in any part of Devon north of this 
latter parish. East of Plymouth it is common on to at least the portion 
of the Erme hasin lying south of Ivybridge ; but neither the Rev. 
W. Moyle Rogers nor I have ever been able to find a single plant 
of it within the basins of the rivers Dart and Teign. Across the 
Tamar, and so in East Cornwall, it occurs in certain spots in the 
parishes of Maker, Rame, Antony, St. Johns, and St. Stephens, 
also in the grounds at Pentillie ; but beyond these parts I have 
never come across it in the whole county of Cornwall, though 
Watson does give it as a West Cornwall species on the authority 
of Dr. Oliver. It is unrecorded for North Devon and the whole 
county of Somerset, but reappears in many places in the kingdom, 
reaching Norfolk and West Perth, so that climate cannot have any- 
thing to do with its circumscribed range in the south-west. In the 
district around Plymouth it seems an increasing rather than decreas- 
ing species. It seeds abundantly, and has a remarkable power of 
quickly sending up flower stems when the earlier ones are cut off 
by the hedger's hook ; these in mild seasons will sometimes be in 
flower so late as November or December. It might be yet more 
plentiful with us if a small lepidopterous larva did not form a 
canopy of the umbels, by drawing their unopened flower-buds to- 
gether with silky threads, to find within a dwelling and supply of 
food at the same time. Notwithstanding the great abundance of 
the plant around Plymouth, it presents very little variation here in 
leaves, &c, though Continental authors speak of a variety with 
lanceolate leaf segments. It is different with regard to the other 
species, Pimpinella saxifraga, L., which has leaflets varying from 
broadly ovate in some plants, to once or twice pinnate, with very 
narrow lobes, in others. Still it is always easy to separate its forms 
from Pimpinetta magna. 
Sium angustifolium, L., though said to be "generally distributed 
in England," is absent from a very large portion of Devon, and 
perhaps the whole of Cornwall. 
A very minute annual species of the Order, Bupleurum aristatum, 
Bartl., grows sparingly on limestone at Torquay and Babbacombe. 
That neighbourhood was alone supposed to produce it in the United 
Kingdom, apart from the Channel Islands, until the year 1860, 
when it was discovered at Cow Gap, near Eastbourne. Growing at 
Torquay, how much more probable geographically would have 
seemed an occurrence of it on the limestone about the Plymouth 
