224 



the flowering of plants in the Garden up to the 10th of April, 1851, 

 not having included the following species, which were recorded as in 

 flower on or before that date in 1850, he presented this list, closing 

 the observations for the season. 



Dates of Flowering. 



Helonias bullata - - . - . 



Draba rupestris - - - - • 



Carex pilosa - . - _ . 



„ stenopliylla - - - - ■ 



Fritillaria Meleagvis _ _ _ . 



Anemone Pulsatilla - - - - ■ 



Narcissus poelicus . - - - . 



Aspliodelus tauricus - - - - ■ 



Narcissus pallidus - - - . 



,, stellaris - - - - - 



Orobus canescens - - - - ■ 



Potenlilla opaca - - - - 



Cardamine bellidifolia - _ . . 



A note was read from Mr. Babington, stating that Ranunculus tri- 

 chophyllus, mentioned by Mr. Syme as found near Edinburgh, is a 

 very common form of R. aquatilis. 



It was stated by Dr. Mitchell, in a letter to the President, that the 

 plant called by Dr. Howitt CEnanthe pimpinelloides, and for which 

 he gives several stations in his Flora of Nottingham, is QE. Lachenalii. 

 It is very abundant in the blue lias districts. All the Leicestershire 

 stations for OE. pimpinelloides are those of CE. Lachenalii, the former 

 not being found either in Leicestershire or Nottinghamshire. These 

 facts render it probable that QL. Lachenalii is not so " rare in fresh 

 water" as it is said to be, both in Babington's Manual and in the last 

 edition of Hooker's Flora ; the mistake has doubtless arisen from the 

 roots not having been examined. Specimens of the plant were sent 

 by Dr. Mitchell, along with other specimens, from Nottingham. 



Mr. M'Nab exhibited several sections of oak stems found in the 

 course of excavations made at Tanfield, Canonmills, and read the fol- 

 lowing notice, supplied by Mr. M'Caul, who had superintended the 

 operations : — " In the course of excavating a pit for a new gasotneter 

 nine years ago, a number of oak stems, the largest two feet in diameter, 

 were found, of which Nos. 1 and 2 are sections. At that time I did 

 not take any interest in such things, and therefore cannot give any 

 accurate information regarding them. In the pit now excavating, and 

 from eighty to ninety feet from the one alluded to, two fine trees were 



