(75) 
pine and yew families are confined to the westerly side of the 
center portion, and the Gamopetalae to the northern side of 
the center and to a portion of the northwest corner immedi- 
ately opposite. The remainder of the house is devoted to 
the exogenous plants not enumerated above, with the big 
group of the mimosa family on the easterly side of the house. 
This rearrangement has made possible a greater repre- 
sentation of families, genera and species in the study collec- 
tion already referred to in houses nos. 12 and 14, thus 
greatly emphasizing its usefulness to students. 
To facilitate the study of the cactus family, such portions 
of the genus Opuniza, as had formerly been in house no. 6, 
were transferred to house no. 5, thus bringing all the smaller 
specimens of this family on the center bench of that house. 
To accomplish this it was necessary to remove the mesem- 
bryanthemums, fleshy euphorbias, bromeliads, and a few 
small families to house no. 
There are now in the conservatory collections, including 
species temporarily at the propagating houses, 7,038 species 
and varieties. The collections in the conservatories alone 
number 11,200 plants, distributed as follows: 
House No. 1 394 House No.9 330 
“ 2 635 7 10 6688 
“3-336 IE 435 
oe 4 425 ds 12 1,012 
“5 2,169 «13-659 
‘ 6 700 ts 14 764 
“ y 464 a 15 1,092 
“ 8 797 
In my report of last year I referred to the then crowded 
condition of the conservatories. This condition has in no 
wise been ameliorated, even though many plants have been 
withdrawn from these collections. Last year there were 12,- 
921 plants, while now there are 11,200, a decrease of 1,721. 
This decrease and the resultant space thereby acquired has 
been surpassed by the increased demand for space to accom- 
modate the remaining plants, which are constantly increasing 
