the principles of priority, autonymy and the substitution of alternative names. Phytologia 74: 193–202. Reveal, J.L. 1993. A splitter's guide to the higher taxa of the flowering plants (Magnoliophyta) generally arranged to follow the sequence proposed by Thorne (1992) with certain modifications. Phytologia 74: 203–263. Reveal, J.L. 1993. A preliminary list of validly published automatically typified ordinal names of vascular plants. Taxon 42: 825–844. Reveal, J.L. 1992. Validation of subclass and supraordinal names in Magnoliophyta. Novon 2: 235–237. Reveal, J.L. 1992. Validation of ordinal names of extant vascular plants. Novon 2: 238–240. Reveal, J.L. & R.D. Hoogland. 1992. [Family nomenclature for] "Part 2. Families and genera alphabetically in major groups", p. 461–751. In: R.K. Brummitt (comp.), Vascular plant families and genera. Royal Botanic Garden, Kew. Reveal, J.L. & R.D. Hoogland. 1991. "Protected plant family names – a new list for consideration," p. 243–249. In: D.L. Hawksworth (ed.), Improving the stability of names: Needs and options. Koeltz Scientific Books, Königstein/Taunus, Germany. Reveal, J.L. & R.D. Hoogland. 1991. Validation of three family names in the Magnoliophyta. Bull. Mus. Natl. Hist. Nat. ser. 4, sect. B Adansonia 13: 91–93. Reveal, J.L. & R.D. Hoogland. 1991. Conservation proposals for three generic names of Magnoliophyta. Taxon 40: 650–652. Reveal, J.L. 1983. The need for an index to infra-taxonomic entities. Taxon 32: 622. Reveal, J.L. 1987, Botanical explorations and discoveries in colonial Maryland: an introduction, Huntia, 7: 1-3. Reveal, J.L. & H.G. Bedell. 1983. Add the rank superorder denoted by -anae. Taxon 32: 661–662. Bedell, H.G. & J.L. Reveal. 1982. An outline and index to Takhtajan's 1980 classification of flowering plants. Taxon 31: 211–232. Bedell, H.G. & J.L. Reveal. 1982. Amended outlines and indices for six recently published systems of angiosperm classification. Phytologia 51: 65–156. Bedell, H.G. & J.L. Reveal. 1982. A synoptical review of a revised classification of Liliopsida (Magnoliophyta) as proposed by Dahlgren and Clifford. Phytologia 52: 179–183. Web based publications 2008 Indices Nominum Supragenericorum Plantarum Vascularium: Alphabetical Listing by Genera of Validly Published Suprageneric Names 2007 Classification of extant Vascular Plant Families - An expanded family scheme 2001 Vascular Plant Family Nomenclature: Names in Current Use 2000 A New Classification of the Monocotyledonous Angiosperms by Chase et al. 1999 Vascular Plant Family Nomenclature: Fate of Suprageneric Proposals at the St. Louis Nomenclature Session for the XVI International Botanical Congress 1999 Conspectus of the monocotyledonous angiosperm families in The Families and Genera of Vascular