Check the Weather in Israel in January before you book your next holiday. This gives the best indication of the weather in January and includes figures for temperature, sunshine and rainfall. The Israel january weather guide shown below is for Jerusalem. 1  13Â°C max day temperature.
Xylem cells are elongated cells with lignified secondary thickening of the cell walls. Xylem cells are specialised for conduction of water, and first appeared in plants during their transition to land in the Silurian period more than 425 million years ago (see Cooksonia). The possession of xylem defines the vascular plants or Tracheophytes.
first-year of growth (actual diameter of about 3 mm). rows of large pink cells in the centre - these are the xylem cells that make-up the wood. the xylem is the bark (stem cortex) and inside the xylem is the pith (stem medulla). traversed by rays of parenchyma cells, like radial spokes (stained green).