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plants on postage stamps

Pflanzen und Tiere auf Briefmarken

By Hans Stengel

Plants on stamps

By Doris Patterson

You piao zhong di zhi wu shi jie

By Boqin Li

Botanical motifs on the coats of arms on stamps

By C. Weber

National flowers and trees on stamps

By C. Weber

Ecophila

By Indonesia. Kantor Menteri Negara Lingkungan Hidup

Trees and stamps

By John Mitchell Watt,Arboricultural Society of South Africa

Sekretet e Luftes

By Erald Kapri

Horticulture on postage stamps

By C. Weber