What's the difference between leaf and stipule?

Leaf


Definition:

  • (n.) A colored, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage.
  • (n.) A special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril.
  • (n.) Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as : (a) A part of a book or folded sheet containing two pages upon its opposite sides. (b) A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc. (c) The movable side of a table. (d) A very thin plate; as, gold leaf. (e) A portion of fat lying in a separate fold or layer. (f) One of the teeth of a pinion, especially when small.
  • (v. i.) To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May.

Example Sentences:

  • (1) The dumplings could also be served pan-fried in browned butter and tossed with a bitter leaf salad and fresh sheep's cheese for a lighter, but equally delicious option.
  • (2) Subsequently the plant protein was partially purified from leaf extract.
  • (3) In autumn, leaf-heaps composted themselves on sunken patios, and were shovelled up by irritated owners of basement flats.
  • (4) Isolated nuclei from green leaf tissue of tomato plants infected with potato spindle tuber viroid (PSTVd) were bound to microscope slides, fixed with formaldehyde and hybridized with biotinylated transcripts of cloned PSTVd cDNA.
  • (5) The nuclear membrane was highly deformed with a leaf-like profile in cross-section, possibly due to an interaction with the rod-like, condensed chromosomes.
  • (6) The mass of glycolic acid recovered from sunflower leaf tissue was proportional to the amount of tissue extracted.
  • (7) cDNA clones of potato virus X (PVXcp strain), potato virus Y (PVYo strain), potato leaf roll virus (PLRV) and potato spindle tuber viroid (PSTV) were used separately or combined for the detection of the corresponding RNAs in extracts of infected plants.
  • (8) Positive cDNA clones isolated from both a pea leaf and embryo lambda gt11 expression library using an antibody raised against the purified lipoamide dehydrogenase proved to be the product of a single gene.
  • (9) Betel leaf extract at the dose levels used in the present study did not affect the body weight gain among rats.
  • (10) Poison oak, ivy, and sumac dermatitis is a T-cell-mediated reaction against urushiol, the oil found in the leaf of the plants.
  • (11) Leaf TBC was usually third while fiber had the least TBC.
  • (12) Using this estimate, the pure Photosystem I emission spectrum was subtracted from the measured emission spectrum of a flashed leaf to give an emission spectrum representative of pure Photosystem II fluorescence at -196 degrees C. Emission spectra were also measured on flashed leaves which had been illuminated for several hours in continuous light.
  • (13) The effect of 50% methanolic extract (U-ext) from Bearberry leaf on immuno-inflammation was studied by contact dermatitis caused by picryl chloride (PC-CD) in mice.
  • (14) Several antisera from rabbits immunized with tobacco smoke components reacted by immunoprecipitation with tobacco smoke or leaf antigens.
  • (15) DNP treatment reduced ion absorption by leaf tissue.
  • (16) Instead, cell divisions are gradually restricted to the base of the leaf with localized sites of increased division at the preligule region.
  • (17) In the leaf-nosed bat, Macrotus californicus, a 4.5-month period of delayed early embryogenesis (October-March) precedes a 3.5-month period of normal embryogenesis (March-June).
  • (18) Plastic responses in leaf form resulting from ontogenetic or external influences are initiated very early in primordial development and are brought about by effects on the rate and direction of cell division and expansion in different regions of the primordium.
  • (19) Northern blot analysis of infected leaf tissue extracts revealed the presence of an oligomeric series of plus RNAs (of monomer size and greater) but minus RNAs were present only as high molecular weight species of heterogeneous size.
  • (20) And, hey, until Friday morning, most surveillance reform advocates were worried about the Senate ramming through the currently neutered version of the USA Freedom Act as its fig leaf of reform, before going back to business as usual and proposing bills that will give the NSA more power – not less.

Stipule


Definition:

  • (n.) An appendage at the base of petioles or leaves, usually somewhat resembling a small leaf in texture and appearance.

Example Sentences:

  • (1) In the controlled wound care group, only three ulcers in three patients achieved complete healing; the remaining 24 ulcers in 20 patients failed to achieve even 50% healing in the stipulated 3-month period.
  • (2) Under the stipulation, cultivators must grow the drug indoors in a secure facility.
  • (3) An increase amount of proinsulin-like component in the blood serum stipulates possibly a more prolonged period of starvation before the occurrence of hypoglycemia, and a less pronounced picture of hypoglycemia in such patients in comparison with the patients whose tumours were capable of splitting HA similarly to the normal islands of Langerhans.
  • (4) Despite the stipulation, though, only 55% of trust-funded research papers are open access.
  • (5) Significantly, the one thing that is making him worry is the Globe's stipulation that no English should be used – something that takes little account of how in India language itself has become globalised, along with so much else.
  • (6) The attendant reflux gastritis is stipulated by reflux of the intestinal contents into the gastric lumen.
  • (7) Comparisons with the previous results of the author obtained in other mammal orders, demonstrated quantative changebility--plasticity of corresponding truncal auditory, optical and vesitbular formations in response to ecologically stipulated changes of leading afferentation in different mammals.
  • (8) The main one being that governments actually stick to their targets which they stipulated in terms of implementing policy to move towards a two degree limit in global warming by 2050,” said Wilkins.
  • (9) (2) The tendency to seclude on admission suggests failure to follow the legal stipulation that less restrictive measures be employed first.
  • (10) The procedure to be adopted by the second veterinary-surgeon inspector, however, has not been stipulated.
  • (11) This phenomenon is probably stipulated by the increase of the transcription activity and formation of 45-pre rRNA, life of RNA.
  • (12) We have earlier proposed a molecular mechanism for the translocation of hydrophilic proteins across membranes that accounts for the experimental facts and meets the restrictions that we stipulate for such a mechanism.
  • (13) In the theory of psychopathology (e.g., implicit in DSM-III), general descriptors of the person (i.e., demographic and cultural) play a comparatively minor role in the stipulation of the manifestations of psychiatric illness.
  • (14) The current rules governing eurozone bailouts stipulate that a government has to request help and that the money may only be channelled via governments – increasing the national debt burden.
  • (15) The Law stipulates that each manager of an establishment with 50 or more workers is requested to appoint an OHP from among qualified physicians.
  • (16) In the UK, the law stipulates that people should use only "reasonable force" as appropriate to the situation, and to prevent a dangerous situation from escalating.
  • (17) A rental contract can stipulate that tenants ask a landlord before switching energy supplier, but it can't refuse permission to switch.
  • (18) The curative effects were up to the standards stipulated by the National Federation of Disabled Persons.
  • (19) Let us stipulate at the start that whether or not to build the pipeline is a decision with profound physical consequences.
  • (20) Buchanan said reserve margins for generation capacity were set to fall from 14% to just 5% within three years, though he played down the threat of power cuts to consumers: households are less likely to be affected by capacity shortages than energy-intensive businesses, many of which have contracts that stipulate their supply can be cut at times of peak demand to free up generating capacity elsewhere.