A leaf is an organ of a vascular plant.
Leaf or Leaves may also refer to:
The " symbol is a character with 34 in ASCII.
It may denote:
The symbol * is called asterisk (42 in ASCII). The symbol may also refer to:
河南 may refer to:
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.
The Leaf Label is an independent record label based in Yorkshire, United Kingdom. Initially known as an electronic music label, releasing mainly instrumental music, the company's approach has broadened over the last few years and now features an eclectic range of artists, with a focus on strong live performers.
The Leaf Label was created in late 1994 by Tony Morley, at that time, Press Officer at 4AD in London, along with friend and co-conspirator Julian Carrera, then working for music press company Stone Immaculate. The pair ran the label as a hobby until the end of 1996, during which time they released a series of eight 12" singles, of mainly electronic music. The label debuted in early 1995 with a 12" release by Boymerang, aka Graham Sutton of the influential post-rock band Bark Psychosis, and early releases also included two volumes of the 'Invisible Soundtracks' series of EPs. Following his recovery from a serious road accident in September 2005, Morley decided to leave 4AD at the end of 1996, setting up his own independent promo company No9, and parting company with Carrera around the same time. The company's first office was in Battersea in South West London, later moving to larger premises in Brixton, South London.