The exact number of species is debated, but most recent authorities recognize between 30 and 40.

The full effects of the 'community charge' have yet to be judged, but the authority recognises the need to plan ahead.

Today all major authorities recognize them as separate species.

The Egyptian postal authority recognized the stamps so that they could be used world wide.

The authorities did not recognise the problems earlier enough.

Whether the legal authorities recognized the speaker's claim as valid is unknown.

The authority recognizes, however, that the station will change significantly.

The Chinese authorities will not recognise any other nationality to which your child may be entitled.

However, many authorities do not currently recognize any of these subspecies.

He was (and still is) widely recognised as the leading global world authority on paper folding.