78 MISSOURI BOTANICAL GARDEN BULLETIN 
chlora, with large white tubular flowers, and several species of 
Mammillaria. 
The old orchid house has been filled with tropical ferns, 
including the golden fern (G@ymnogramme chrysophila) , the 
silver fern (Gymnogramme tatarea), the variegated fern 
(Pteris argyraea), the chain fern (Woodwardia radicans), 
the flowering fern (Anemia phyllitides), the oak-leaf fern 
(Polypodium quercifolium), and a collection of various 
forms of the maiden hair ferns (Adiantum). At the east 
end of the house are the insectivorous, or fly-catching plants, 
among which are the Venus Fly Trap (Dionaea muscipula) , 
at present in flower, a plant which has sensitive hairs on the 
inside of the leaf which, when touched, cause the two halves 
to spring together, and the sun dews (Drosera capensis) and 
(Drosera rotundifolia), which will be in flower shortly and 
which have their leaves covered with glandular digestive 
hairs. The African glory vine (Clerodendron Thomsonae), 
owing above the entrance to the East. Indian house, is in 
ull bloom. Its petals are bright scarlet, with sepals pure 
white, later turning to a pinkish color. In the East Indian 
house a small group of the East Indian ixora (Iora coccinea), 
with flowers produced in heads of a brilliant salmon color, 
is attracting considerable attention. Several of the spathe 
flowers are in full bloom, including the white spathe flower 
(Spathiphyllum Wallisi), the yellow flowered one (Spathi- 
phyllum cochlearispathum), and the pink spathe flower 
(Anthurium Regnaldsianum). 
The old cycad house south of the fern dome has been 
rearranged for the cultivation of the orchids. The most 
interesting species in flower at the present time is the cow- 
horn orchid (Schomburgkia Tibicinus), the pseudobulbs of | 
which are hollow and shaped like the horns of a cow. Cer- 
tain species of stinging ants of South America find a perma- 
nent home here, entering through a small opening at the 
base of the pseudobulb. The small black ants that inhabit 
the greenhouses have been noticed to enter these openings, 
but probably only out of curiosity, since they do not remain 
any length of time. This species is one of the best of the | 
myrmecophilus orchids, the small mauve flowers borne on 
the end of long Fe Say being well worth noticing. A 
ane plant of Oncidium sphacelatum, with long pendant 
spikes of yellow and brown flowers, is in full bloom and 
various other orchids are in flower, including Mazillaria 
tenuifolia with red flowers, Pleurothallis tenera with yellow 
flowers, Epidendrwm odoratissimum, the fragrant orchid, the 
