Missouri Botanical 
Garden Bulletin. 
Vol. VIII St. Louis, Mo., April, 1920 No. 4 
SOME TROPICAL WOODY CLIMBERS IN THE MAIN 
CONSERVATORY 
Evergreen climbers, especially the woody type, are val- 
uable in overcoming the sparseness of roof vegetation in 
newly planted conservatories and are particularly effective 
when planted at the side and trained to the ridge in a festoon 
arrangement. The Bignoniaceae, because of the profusion of 
their light purple to orange flowers, possession of tendrils as 
a means of support, and resistance to insect pests, are par- 
ticularly well adapted to this purpose. They will likewise 
stand varied degrees of temperature, and when planted out- 
side further south the plants grow rapidly, often attaining a 
height of twenty feet in one season. The pendant growths 
bear long festoons of trumpet-shaped flowers, the heads of 
the flowers being terminal from the young lateral shoots. 
Shaping or pruning the vines should be accomplished im- 
mediately after flowering. 
Several genera of the Bignoniaceae are now in flower in 
the economic house at the Garden. The vines are planted 
adjacent to the steam pipes on each side of the concrete re- 
taining wall and are supported from the ground to the ridge 
by a single strand of wire. This is counterbraced by sus- 
pended wires hooked to the parallel angle irons, leaving a 
space of two feet between the glass and support to prevent 
the vine from burning in summer and freezing in winter. 
CLYTOSTOMA CALLISTEGIOIDES 
This species, a native of Brazil, is grown extensively in 
Florida where it is said to withstand several degrees of frost. 
The flowers are about three inches long, trumpet-shaped, and 
produced in terminal pairs from the young growth. The eorol- 
la is vase-shaped, pale purple, streaked on the interior. 
PHAEDRANTHUS BUCCINATORIUS 
This is a handsome vine well adapted to cool greenhouses. It 
is evergreen in habit, the growth being supported by strong 
three-parted tendrils. The flowers are orange-red, produced in 
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