CHAPTER IV. EFFECTIVE AND VALID PUBLICATION

SECTION 1. CONDITIONS AND DATES OF EFFECTIVE PUBLICATION

Article 29

29.1. Publication is effected, under this Code, only by distribution of printed matter (through sale, exchange, or gift) to the general public or at least to botanical institutions with libraries accessible to botanists generally. It is not effected by communication of new names at a public meeting, by the placing of names in collections or gardens open to the public, by the issue of microfilm made from manuscripts, typescripts or other unpublished material, or solely by distribution electronically or through any medium.

Ex. 1. Cusson announced his establishment of the genus Physospermum in a memoir read at the Société des Sciences de Montpellier in 1770, and later in 1782 or 1783 at the Société de Médecine de Paris, but its effective publication dates from 1787 (in Hist. Soc. Roy. Méd. 5(1): 279).

Recommendation 29A

29A.1. Publication of nomenclatural novelties in periodicals (see Rec. 30A.2) that distribute an electronic version as well as a printed version, should only be in those with the following features:

(a) The printed and electronic versions are identical in content and pagination;
(b) The electronic version is in a platform-independent and printable format;
(c) The electronic version is publicly available via the World Wide Web or its successors;
(d) The presence of nomenclatural novelties is prominently indicated in the work (see Rec. 30A.2).