( 3^9 ) 
centre of each; a black fpot on the 
antherse, and the leaves apparently 
perforated. Hypericum is the only 
genus of the Clafs, that is a native of 
Britain. 
No. 1 6. Car duus crifpus, or Curled Carduus 
Thiftle. This plant has caufed fome "$"** 
confufion among our Englifh Bota- * 
nifts. Hudfon's C. crifpus is the 
acantboidetoi Linnaeus, and his acan- 
thoides, the crifpus of that author. 
Dr. Withering rejects the crifpus of 
Linnaeus, and fubftitutes a new fpe- 
cies which he calls C. inclinam. Old 
Bauhinus very properly calls it Cardu- 
usfpinofijjimus anguftifolius vulgar is . 1 1 
is indeed prickly all over. It refem- 
bles moft the C. nutans, Mufk Thiftle; 
but differs in the decurrent leaves 
covering the entire ftem: it is alfo 
faid to be rather more ftiffnecked 
than the nutans. I have not found 
it fo. But there is a peculiarity ob- 
fervable in this crifpus, which, I be- 
lieve, no writer has taken notice of. 
It is fo delicately fenfible of the night 
air, that towards evening it con- 
ftantly 
