Two proteins which have carbonate dehydratase (carbonic anhydrase, EC 4.2.1.1) activity were shown to be in the chloroplasts and in the cytosol of leaves of Brassica chinensis, Spinacia oleracea, and in variegated leaves of Tradescantia albiflora and Hedera canariensis. The chloroplastic enzyme is smaller than the one in the cytosol, as it runs farther on gradient polyacrylamide gels. It was se...

Type material of Paliurus colombii Heer, Populus arctica Hakea and Hedera macclurii Heer from the Atanikerdluk locality (Paleocene, Greenland) was restudied based on original collection, stored in National Museum Ireland, Dublin. All these species were joined under name Zizyphoides (Heer) Seward et Conway, type genus Conway. A lectotype is designated diagnosis this emended. An emended also pres...

Green façades in the urban environment represent points of biodiversity value, contributing to species conservation, acting as wildlife corridors connecting elements, and also aiming at sustainability, when materials structure are thoughtfully chosen. Ivies (Hedera spp.) perennial climbing evergreen plants that easy cultivate demand little input, their use vertical green systems is much appreci...