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leaf

A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.
Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features. In most plant species, leaves are broad and flat. Such species are referred to as broad-leaved plants. Many gymnosperm species have thin needle-like leaves that can be advantageous in cold climates frequented by snow and frost. Leaves can also have other shapes and forms such as the scales in certain species of conifers. Some leaves are not above ground (such as bulb scales). Succulent plants often have thick juicy leaves, but some leaves are without major photosynthetic function and may be dead at maturity, as in some cataphylls, and spines). Furthermore, several kinds of leaf-like structures found in vascular plants are not totally homologous with them. Examples include flattened plant stems (called phylloclades and cladodes), and phyllodes (flattened leaf stems), both of which differ from leaves in their structure and origin. Many structures of non-vascular plants, and even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), look and function much like leaves. The primary site of photosynthesis in most leaves (palisade mesophyll) almost always occurs on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of Eucalyptus palisade occurs on both sides and the leaves are said to be isobilateral.





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shipping costs:

  • shipping costs per parcel (incl. tax and in Euro) *
    countrydelivery from shipment
    in workdays
    0-5 kg5-10 kg10-20 kg20-31 kg
    Germany 2-3        
    EU:
    A, B, BG, CZ, CY (besides northern part), DK (besides Faroese, Greenland), E (besides Canaries, Ceuta and Melilla), EST, F (besides oversea and Departments), FIN (besides Alandisland), GB (besides channel island), GR (besides mount Athos), H, HR, IRL, I (besides Livigno and Campione dItalia), LV, LT, L, M, NL (besides non-EU), PL, P, RO, S, SK, SLO
    3-5        
  • (*) The shipment of products up to 31 kg is usually done as a parcel with insurance as shown on the list above, if allowed by size (120x60x60 cm) and weight (max. 31 kg).
    The shipping costs for dissenting sizes and weights, as well as parcels to non-EU-countries are calculated in each case.
  • Small parts can be shipped via letter starting at Euro on demand. Please note: the letter has no insurance and we assume no liability for damage/loss.
  • If the customer specified a wrong/incomplete address (e.g. wrong city code, wrong house number, etc.), the additional costs for the delivery will be charged at the expense of the customer.

delivery period:

  • The shipment will take place inbetween workdays (monday-friday, holidays excluded) after issuing the payment order at the transferring bank (payment in advance) and accordingly after making a contract (purchase on account).
  • The estimated delivery period depends on several parameters, like delivery address, mode of shipment, etc. To calculate the estimated delivery period we add the duration of the bank transfer and the regular shipping time by our carrier. Please take account of the addition of weekends and holidays.
  • The shipment of your order is carried out by or .
  • You can see the estimated delivery period on the last page of your order.

payment:

  • You can pay via bank transfer or .

 
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