Pterostyrax Burmanicus
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''Pterostyrax'', the epaulette tree, is a small
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of four
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, aft ...
large
shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
s or small
tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...
s in the family
Styracaceae The Styracaceae are a small family of flowering plants in the order Ericales, containing 12 genera and about 160 species of trees and shrubs. The family occurs in warm temperate and subtropical regions of the Northern Hemisphere. The family is c ...
, native to eastern Asia in China and Japan. They grow tall, with alternate, simple ovate
leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...
long and broad. The
flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...
s are white, produced in dense
panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...
s long. The
fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...
is an oblong dry
drupe In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or '' pyrena'') of hardened endocarp with a seed (''kernel'') ...
, with longitudinal ribs or narrow wings (the wings are absent in the related genus ''
Styrax ''Styrax'' (common names storax or snowbell) is a genus of about 130 species of large shrubs or small trees in the family Styracaceae, mostly native to warm temperate to tropical regions of the Northern Hemisphere, with the majority in eastern ...
'', whence the name ''Pterostyrax'', "winged styrax").Fritsch, P. W., Morton, C. M., Chen, T., & Meldrum, C. (2001). Phylogeny and Biogeography of the Styracaceae. ''Int. J. Plant Sci''. 162 (6 Suppl.): S95–S116. Availabl
online (pdf file)
/ref>Germplasm Resources Information Network
''Pterostyrax''
Flora of China
''Pterostyrax''
/ref> ;Species *''
Pterostyrax burmanicus ''Pterostyrax'', the epaulette tree, is a small genus of four species of deciduous large shrubs or small trees in the family Styracaceae, native to eastern Asia in China and Japan. They grow tall, with alternate, simple ovate leaves long and b ...
'' W.Wsm. *''
Pterostyrax corymbosus ''Pterostyrax'', the epaulette tree, is a small genus of four species of deciduous large shrubs or small trees in the family Styracaceae, native to eastern Asia in China and Japan. They grow tall, with alternate, simple ovate leaves long and ...
'' Siebold & Zucc. - Japan and China *''
Pterostyrax hispidus ''Pterostyrax hispidus'', the epaulette tree or fragrant epaulette tree, is a species of flowering plant in the family Styracaceae, native to China and Japan. Growing to tall by broad, it is a substantial, spreading, deciduous shrub with oval ...
'' - Japan *'' Pterostyrax psilophyllus'' Diels ex Perkins - China The species names are frequently given with feminine gender ("corymbosa", etc.); however, the genus is correctly of masculine gender.


References

Image:Pterostyrax carymbosa BotGardBln1105LeavesFallFruits.JPG, ''Pterostyrax corymbosus'' Image:Pterostyrax corymbosus SZ47.png, ''Pterostyrax corymbosus'' {{Taxonbar, from=Q2701015 Styracaceae Ericales genera