Commemorative stamp series - Germany / German Democratic Republic 1983 - 25 Pfennig

From cactus cultures of the GDR With the illustrations of cacti, the Ministry of Posts and Telecommunications of the German Democratic Republic publishes six multicolored special postage stamps. Special cancellations from June 21st to August 20th, 1983 Cacti - attractive colors for insects In the case of cacti, the pollination of the flowers, which is vital for the preservation of the species, is usually done by insects or hummingbirds. From the thickets of the shrubs, the cacti with their mostly white flowers rise up to a height of 18 meters and stretch their pistils towards the pollinators. Often there are climbing nightbluers, which shine high above the leaves of the trees. It is different with the low ball and wart cacti, they attract by flying colors of the flowers or thorns, sometimes also by sweet smell of the gland excrements the flying and creeping pollinators. 25-Pfennig-Wert- Submatucana madisoniarum In the north of Peru in the department of Amazonas P. C. Hutchison discovered in the Cahon of the Rio Marahon at about 500 meters altitude a very strange spined ball cactus, which was described in 1963 by him. The new plant has a gray-green body and four to five curved spines up to 6 cm in length. The bright red flowers of this striking plant are 8 to 10 cm long and hairy on the calyx. It was described after Mrs. and Mr. Madison as Submatucana madisoniorum of Backeberg in 1966. Since it is willing to flower and is easy to grow from seed, it already graces many collections today.