DIVISION II. RULES AND RECOMMENDATIONS
CHAPTER IV. EFFECTIVE AND VALID PUBLICATION
SECTION 2. CONDITIONS AND DATES OF VALID
PUBLICATION OF NAMES
Article 35
35.1. A new name or combination
published on or after 1 January 1953 without a clear indication of the
rank of the taxon concerned is not validly published.
35.2. For suprageneric names published on or after 1 January 1908, the use of one of the terminations specified in
Rec. 16A.1-3, Art.
17.1, 18.1, 19.1, and
19.3 is accepted as an indication of the corresponding rank, unless this
(a) would conflict with the explicitly designated rank of the taxon (which takes precedence),
(b) would result in a rank sequence contrary to Art. 5 (in which case
Art. 33.9 applies), or (c) would result in a rank sequence in which the same rank-denoting term occurs at more than one hierarchical position.
Ex. 1. Jussieu (in Mém. Mus. Hist. Nat. 12: 497. 1827) proposed
Zanthoxyleae without specifying the rank. Although he employed the present termination for tribe
(-eae), that name, being published prior to 1908, is unranked.
Zanthoxyleae Dumort. (Anal. Fam. Pl.: 45. 1829), however, is a tribal name, as Dumortier specified its rank.
Ex. 2. Nakai (Chosakuronbun Mokuroku [Ord. Fam. Trib. Nov.], 1943) validly published the names
Parnassiales, Lophiolaceae, Ranzanioideae, and
Urospatheae.
He indicated the respective ranks of order, family, subfamily, and
tribe, by virtue of their terminations, even though he did not mention
these ranks explicitly.
35.3. A new name or combination
published before 1 January 1953 without a clear indication of its rank
is validly published provided that all other requirements for valid
publication are fulfilled; it is, however, inoperative in questions of
priority except for homonymy (see Art. 53.4).
If it is a new name, it may serve as a basionym for subsequent
combinations or a replaced synonym for nomina nova in definite ranks.
Ex. 3. The groups
"Soldanellae", "Sepincoli", "Occidentales", etc., were published without any indication of rank under
Convolvulus L. by House (in Muhlenbergia 4: 50. 1908). The names
C. [unranked]
Soldanellae, etc., are validly published but they are not in
any definite rank and have no status in questions of priority except
for purposes of homonymy.
Ex. 4. In
Carex L., the epithet
Scirpinae
was used in the name of a subdivision of a genus of no stated rank by
Tuckerman (Enum. Meth. Caric.: 8. 1843); this taxon was assigned
sectional rank by Kükenthal (in Engler, Pflanzenr. 38: 81. 1909) and
its name may be cited as
Carex sect.
Scirpinae (Tuck.) Kük. (
C. [unranked]
Scirpinae Tuck.).
Ex. 5. Loesener published "
Geranium andicola var. vel forma
longipedicellatum"
(Bull. Herb. Boissier, ser. 2, 3(2): 93. 1903) without a clear indication of infraspecific rank.
The name is correctly cited as "
G. andicola [unranked]
longipedicellatum Loes."
The epithet was used in a subsequent combination,
G. longipedicellatum (Loes.) R. Knuth
(1912).
35.4. If in one whole publication
(Art. 35.5), prior to 1 January 1890, only one infraspecific rank is
admitted, it is considered to be that of variety unless this would be
contrary to the author's statements in the same publication.
35.5. In questions of indication
of rank, all publications appearing under the same title and by the
same author, such as different parts of a flora issued at different
times (but not different editions of the same work), must be considered
as a whole, and any statement made therein designating the rank of taxa
included in the work must be considered as if it had been published
together with the first
instalment.
Ex. 6. In Link's
Handbuch (1829-1833) the rank-denoting
term "O." (ordo) was used in all three volumes. These names of orders cannot be considered as
having been published as names of families (Art.
18.2) since the term family was used for
Agaricaceae and
Tremellaceae under the order
Fungi in vol. 3 (pp. 272, 337;
see
Art. 18 Note 1). This applies to all three volumes of
the
Handbuch, even though vol. 3 was published later (Jul - 29 Sep 1833) than vols. 1
and 2 (4-11 Jul 1829).
(c)
2006, by International Association for Plant Taxonomy. This page last updated
13.03.2007
.
