He is particularly known for his works on Scandinavian flora , and for his widely used handbook to plants Norsk flora , with illustrations by his wife Dagny Tande Lid .
He was born in Voss , and was married to illustrator Dagny Tande Lid from 1936 .
He is particularly known for his works on Scandinavian flora , and for his widely used handbook to plants Norsk flora , with illustrations by his wife illustrator     .
He was born in Voss , and was married to illustrator Dagny Tande Lid from 1936 .