This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
Macros, in composition, long, large.
Mono, in compounds, signifies one.
Flowering and fruiting only once.
Having one seed-leaf.
Sexes in separate flowers on the same individual.
Terminating in a short hard point.
Multi, in compounds, signifies many.
Smooth and shining.
From snowy regions.