MISSOURI BOTANICAL GARDEN BULLETIN 63 
Garcinia mangostana, upon the stem and roots of Garcinia 
canthochymus. At least six to eight weeks should elapse be- 
fore beginning the operation, and it should be accomplished 
gradually, otherwise a loss of the leaves and shrivelling of 
the entire shoot may result. The upper portion of the stock 
may be severed just as soon as the parts of the union are 
completely joined, thus permitting all the vigor of the well- 
rocted stock to pass into the newly grafted scion. 
NATIVE PLANTS SUITABLE FOR THE GARDENS OF 
MISSOURI AND ADJOINING STATES 
IV. NATIVE TREES AND SHRUBS WITH CONSPICUOUS 
FLOWERS 
Following is a list of the trees and shrubs, conspicuous 
for their flowers, which will thrive in the section of the country 
surrounding the city of St. Louis. With the exception of 
a very few which have escaped from cultivation the species 
mentioned are all native of the eastern United States. 
The greater part of those listed as small trees often assume 
the form, of large shrubs, and may in most instances be used 
for either purpose. While most of the plants in the list will 
thrive in ordinary good loamy garden soil, some of them 
prefer special soil conditions, and for this reason a list of 
various soil conditions are given and indicated by numbers: 
NATIVE TREES AND SHRUBS WITH CONSPICUOUS FLOWERS 
Approx. 
Botanical name Common name gh ee pita time of 
bloom 
LARGE TREES 
3* Aesculus glabra Ohio buckeye 30-50’ Yellow April-May 
3 Aesculus octandra, Yellow buckeye 60-80° | Yellow April-May 
3 Catalpa Indian bean 20-60’ | White June-July 
bignonioides 
3 Catalpa speciosa | Large Indian bean | 40-100’ | Whitish May-June 
3 Cladrastis Yellow-wood | 20-30’ White June 
tinctoria | 
*Key to soil conditions: 
1. Clay 6. Gravelly soil 
2. Clay subsoil 7. Sandy loam 
3. Clay loam 8. Disintegrated limestone 
4. Loam 9. Disintegrated flint 
5. Leafmold 
Two or more numbers indicate a combination of soil conditions; 
for example, 2-4 is loam with a clay subsoil. 
