148 MISSOURI BOTANICAL GARDEN BULLETIN 
Expedition to Central and South 
America for orchids, 6 
F 
Fall flower show, 2 
Fertilizers, grape, 49 
Flora de Mayo, 128 
Flower sermon, annual, 9 
Forcing grapes, 45; peaches and 
nectarines, 57 
Foxglove ‘‘The Shirley,” 135 
Frost flowers, 104, 105; produced on 
pruned stems of crownbeard 
(Verbesina virginica), 104 
Frost injury, protecting roses from, 
129, 130 
Frost weed, 105 
Frozen hedges and roses and their 
treatment, 37 
G 
Gaillardia ‘“‘The Dazzler,” 135 
Garden Club of St. Louis, the fourth 
annual show of, 2 
Geums, 135 
Ginkgo biloba, 64, 64 73 
Golden chain, 93 
Graduate students at Garden dur- 
ing 1923, 15 
Grape: best varieties for forcing, 
51; “Black Hamburg,” 46; con- 
trol of insect and fungous pests 
affecting the, 51; cultivation of 
the, 48; excerpts from Henry 
Shaw’s account of the, 45; Fos- 
ter’s Seedling, 47; pruning the, 
49; spraying the, 49 
H 
Hedges, frozen, treatment of, 37 
Helianthemum canadense, 105 
Helianthus angustifolius, 135; cu- 
cumerifolius, 135. 
Helichrysum, 136 
Herbarium, report of, for 1923, 18; 
exchanges, 19; field work, 19; 
mounting and distribution of 
specimens, 19; new accessions, 
18; statistical summary, 20; use 
of, by outside botanists, 20 
“Historia General de las Indias,’ 
137, title-page, 188; reproduction 
of page containing first mention 
of tobacco, 139 
Hoarhound, 103 
Holly, 71 
Horsemint, 103 
Humphrey Street garden, 80, 80 
Hyptis spicigera, 103 
I 
Iris Kochii, 83; “Bluebird,” 83 
J 
Japanese garden on Washington 
Boulevard, 81, 82 
Jonquils, toxic principle of, 52 
L 
Labiatae, 99 
Laburnum anagyroides, 98, 93 
Laelio-Catileya, 62; luminosa var. 
aurea, 129 
Lantern-plant, Chinese, 136 
Larkspurs, 72 
Lavender, 100 
Lavendula vera, 100 
Lawns in St. Louis, 69; testing of 
grass mixtures for, 2 
Lectures by members of Garden 
staff during 1923, 12 
Library, report of, for 1923, 20; 
Garden publications as a means 
of exchange, 21; statistical, 22 
Ligustrum, 39, 69; amurense, 39; 
LIbota, 39; ovalifolium, 37, 39 
Lilacs, 70 : 
Lily disease, 90 
Linnean garden, changes in, 1 
Linum hirsutum, 135 
Lunaria annua, 136 
Lycium, 69, 83 
Lotus, 137 
M 
Maidenhair tree, the, 64; in fruit 
at the Garden, 64 
Maple tree in front of mausoleum, 
showing limbs and_ branches 
blown off by storm of July 17, 88 
Marjoram, 101 
Marrubium vulgare, 103 
Matrimony vine, 83 
