Spell out all numbers or fractions that begin a sentence. If this is awkward, rephrase the sentence to avoid beginning with a numeral. The dash may be used in tables, figures, graphs and in parentheses. Write out numerals one through nine except with units of measure. Check tabular data, as well as numerical values, reported in the text for the proper number of significant figures.
Care is needed in tables and figures to avoid numbers with many digits.
Always use colon with number ratio. Following this initial citation, the generic name may be abbreviated to the initial, except when confusion could arise by reference to other genera with the same initial. The algae and microorganisms referred to in the manuscript should be identified by a Collection number or that of a comparable listing. Statistical treatment When appropriate, statistical analysis should be included. Define all statistical measures clearly.