Mar. 1892.] THE BOTANICAL SOCIETY OF EDINBURGH. 277 



CuPRESsus Lawsoniana. 



At opposite ends of the strip of grass south of the central 

 space of the Botanic Garden. 



They are healthy and symmetrical, but the branches are 

 short in proportion to the thickness of the stem. The two 

 are very much alike in aspect and situation, and their girth - 

 increase corresponds closely in amount and in the yearly rise 

 and fall, except for a marked failure in No. 10 in 1888. 

 Their rate, barely half an inch, is inferior to the 0"82 for 

 twelve years of No. 1*, outside the garden wall at Craigiehall, 

 a tree of nearly the same girth. 0'70 is the largest increase 

 in one year in either No. 9 or 10, but No. 1* twice attained 

 1-05. 



No. 12. Thuja gigantea. No. 14. Retinospora obtusa. 



Thuja gigantea. On the grass west of the large Yew, in 

 a sheltered position. A thriving tree, though rather bare to 

 the east. Its rate, 0"82, though it does not seem large, is 

 double that of a younger neighbour, which looks quite as 

 well. Two apparently healthy, well-grown specimens of 

 Thuja Graigicana, east of the Ahies collection, were also under 

 observation, but one grew at the rate of only 0'24 and the 

 other at the still lower rate of 0*18, so that there is no use 

 in recording the details. 



Betinosjjora ohtusa. A healthy shrub at the north-west angle 

 of the grass behind the large Yew, The annual rate, 0"44, 

 is somewhat lowered by a depression to 0"20 in 1888, and 

 as 0'60 was made in the following year, the range is large. 

 Another younger specimen, No. 90, although it did not in 



