(67 ) 
ing those still at the nurseries, 254 species and varieties. In 
the pinetum alone there are 159 species and varieties, repre- 
sented by 620 specimens, of which 215 were added the past 
ear. 
Viticetum. There are now 37 species and varieties of 
climbers, represented by 59 specimens, located here. There 
are some few specimens in the nurseries which can be in- 
corporated with this collection, but the greater part of the 
material needed must be otherwise secured. 
Conservatories. The arrangement of the collections here 
remains the same as indicated in my report of last year. 
Much work has been done in identifying unnamed specimens 
and in verifying or correcting names, thus permitting the 
placing of many more show labels. One of my assistants 
has charge of the details of this work, and herbarium speci- 
mens are being constantly made that this work may continue. 
In the collections there are 7,210 species and varieties, in- 
cluding such as are temporarily at the propagating houses. 
he following list indicates the number of plants in each 
house, showing a total of 10,132: 
House No. 1 280 House No. 9 133 
«2 6642 “10 «5479 
7B 3338 = 72 35 
“4 © 379 “© 12 946 
“  & 1,889 “¢ 13, «600 
“6 «808 “14-705 
“7 758 “15 980 
« 8 782 
To make room for the growing orchid collection and to 
give the plants a more congenial atmosphere and light, a large 
proportion of this collection was removed to hanging bars in 
house no. 15. 
Propagating Houses and Nurseries. ‘The study collection 
of cactuses has been assembled in house no. 5, which is de- 
voted almost entirely to these and to the stonecrop family. 
As in past years, one house, no. 4, has been devoted entirely 
to experimental work under the direction of Dr. MacDougal. 
