feet high, is called “tanasa” by the people of northern Mexico where 
it is native. It grows too in Texas and has been distributed by the 
U. S. Bureau of Plant Introduction as P. I. 75261. It is found naturally 
in semi-arid situations. It has short spines, bipinnate leaves and pale 
cream-colored flowers in head-like spikes. At Coconut Grove the tree 
flowers freely at intervals from May to September and is “beautiful 
when in full bloom.” Close relative of the common P. dulce that is 
planted along the front walk at the Stuart High school, this Pithecell- 
obium is evergreen, not so dirty, probably hardier than its brothers, 
much more attractive when in bloom. 
PIPTADENIA MACROCARPA. (Mimosaceae). An unarmed 
tree from Brazil, related to Acacia, with small white flowers in dense 
round heads, often crowded at the ends of the branches. 
BAUHINIA SP. (Caesalpinieae). The so-called “orchid trees” 
. are very popular in Florida, notably the native Bauhinia variegata 
with its lovely fragrant purple flowers in March, but there are many 
other kinds that are not so well known. Here are a few of them: 
BAUHINIA GRANDIFLORA. A South American tree to 20 
feet which bears very large, pure white flowers that open at night. ° 
This and other white flowered varieties listed here should not be con- 
fused with the common “white Bauhinia” which is probably a varia- 
tion of B. purpurea. 
BAUHINIA PICTA. Another white-flowered variety. This one 
from Colombia, has not bloomed for me yet and my data on it is 
meagre. Bailey’s encyclopedia gives it as an unarmed tree, flowers 
solitary. 
BAUHINIA SP. Another white-flowered variety from Singapore, 
with the largest, fattest pod I have ever seen on a Bauhinia. The 
seeds came via Tahiti where the tree is erroneously known as B. mon- 
andra. 
BAUHINIA PULCHELLA. Another member of the family 
from Brazil. I have no record of the flowers. The word “pulchella” 
means beautiful. 
BAUHINIA RACEMOSA. This is a small, crooked bushy tree 
from India with very small leaves. The one-half inch whitish yellow 
flowers are in six-inch clusters at the ends of the branches. 
CAESALPINIA CORIARIA and C, VESICARIA. (Caesalpin- 
ieae). The very popular “dwarf poinciana” is known and loved every- 
where in Florida for its red or red-and-yellow or clear yellow flowers, 
but here are two tree-like relatives from Central America that are not 
so well known. The former grows to 30 feet, has no thorns, and bears 
white flowers. C. vesicaria is a small slender tree of 15 or 20 feet from 
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