Evolutionary history of plants seed model is shared by basically all gymnosperms (literally: "naked seeds"), most of which encase their seeds in a woody cone or fleshy aril (the yew, for example), but none of which fully enclose their seeds. The angiosperms ("vessel seeds") are the only group to fully enclose the seed, in a carpel. Fully enclosed seeds opened up a new pathway for plants to follow: that of seed dormancy. The embryo, completely isolated from the external atmosphere and hence protected from desiccation, could survive some years of drought before germinating. Gymnosperm seeds from the Late Carboniferous have been found to contain
Sub-district VII of Warsaw suburbs (of Armia Krajowa) for advancing soldiers of the 27th Wołyń Division of Armia Krajowa. In September, medical aid was provided for insurgents of the "Kryska group", who succeeded in swimming across Wisła from the Czerniaków bridge-head to the Praga bank of Wisła river. Region V - it covered the Chojnowo forests, which were a place of concentration of the sub-district's units as well as units of the Sub-district IV of Ochota (of Armia Krajowa) and Sub-district V of Mokotów, which failed to perform their military action on their own area. The commander of the Sub-district IV of Ochota lieutenant-colonel Mieczysław Sokołowski pseudonym "Grzymała",