A GARDEN FLORA 
127 
OSMANTHUS. Oleacese. 
0. Aquifolium. Japan. 
0. Delavayi. Yunnan. 
Four little plants have grown in an open border 
now for some years, and have so far proved hardy. 
They are low-growing, spreading sometimes 6 feet 
in circumference. The white flowers appear among 
the dark foliage in September. 
0. Fortunei (Aquifolium xfragrans). Japan. 
Syn. 0. ilicifolius. 
A rather tender, evergreen shrub, growing in a 
sheltered corner of the Lawn. The oldest bush 
measures 13 feet in height. Frost is apt to damage 
the young shoots of autumn growth. 
tO. fragrans. China and Japan. 
OSMUNDA. Filices. 
0. regalis. Royal Fern. N. and S. Temperate region. 
OSTEOMELES. Rosaceae. 
*0. Schwerinse. W. China. 
Bot. Mag., T. 7354, 0. anthyllidifolia. 
Almost hardy, and flowering on a wall in the open ; 
but seen to greater advantage in the Cool House, 
where the white blossoms appear among the black 
fruit of a previous season. 
OSTROWSKIA. Campanulaceae. 
O. magnifica. Central Asia. 
OSTRYA. Hop Hornbeam. Cupuliferae. 
0. japonica. Japanese Hop Hornbeam. Japan. 
A tree, planted in a field some ten or more 
years ago, is now 14 feet high, and has been found 
hardy. The young leaves are tinged with red. 
OSTRYOPSIS. Corylaceae. 
0. davidiana. N. China and Mongolia. 
Height 9 feet. Planted in the Arboretum 1914. 
