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.
Sclerenchyma cells most often make up hard and incompressible parts of the plant. They occur in the cortex, phloem, pith, and mesophyll either singly or in clusters. In addition, special types of sclerenchyma cells known as fibers, tracheids and vessel elements from important cellular components of the xylem or wood.