42 
quite in contrast with the fleshy euphorbias on the same 
bench, which so much resemble some of the columnar forms of 
Cereus. In house 6is a large plant of Fouquieria formosa, secured 
by MacDougal and Rose during an expedition to Tehuacan, 
Mexico, in 1906. This is now flowering for the first time. There 
are six known species of this genus, all inhabitants of see or 
warm arid regions in North America F. splen- 
dens and F. Macdougalit in addition to the above, are in cultiva- 
tion at the Garden. The development of the spines in this genus 
is pies they being formed within the petioles of the young 
In houses 7 and 8 are the collections of cactii—G. V. N 
