Smirnova Anna Nikolaevna RussiaСыктывкарInstitute of Biology of the Komi Science Centre of the Ural Division RAS, 28 Kommunisticheskaya st., 167982 Syktyvkar, Komi Republicsmirnova@ib.komisc.ru Author's articles Morphological and biological characteristics of seeds Hypericum perforatum and H. maculatum crantz growing in the north