132 THE ORCHID REVIEW. [May, 1911. 
the two parents, the name of the seed parent being placed first. This is 
indicated by the sign ¢. 
Article 8.—The specific names of hybrids should be in Latin, or in a 
common language written with Latin characters. 
Article 9.—All hybrids obtained by crossing the same two species should 
bear the same specific name. All forms derived from the same cross, or 
from successive crossings of varieties of the same two species, should be 
attached as varieties to this same specific name. 
Article 10.— When the parents of a hybrid are transferred to another 
genus, the hybrid follows, and the specific name is subject to the law of 
priority or other rules applicable to species under similar circumstances, as 
in Article 48 of the Rules of botanical nomenclature.* 
For example, those who admit the genus Paphiopedilum, must call X 
Cypripedium Vervaetianum, Rchb. f. in Gard. Chron., 1888, i. p. 712 (X 
C. Euryale, Veitch Man. Orch., iv. p. 83, 1889), X Paphiopedilum Ver- 
vaetianum, not X P. Euryale, Stein Orch., p. 466 (1892). 
Article 11.—Names of horticultural varieties of hybrids should always 
be expressed in common language. 
Article 12.—Crosses between varieties, or forms of the same species, and 
ternary, or more complex hybrids, should be distinguished by a name anda 
formula, and follow the same rules as ordinary hybrids. 
For ordinary use, when speaking of well-known hybrids, the formula 
may be omitted and the name only used. 
Article 13.—Bigeneric hybrids are also distinguished by a name and a 
formula. 
The generic name is formed by the combination of the generic names of 
the parents, in the form of a single word, and arranged in such a way that 
the parent genera may be easily recognised. It is preceded by the sign X, 
and followed by the specific name. 
The specific name is governed by the same rules as are ordinary hybrids 
(See Art. 4 and 2 and Art. 8). 
The formula should be written conformably to Art. 7. 
Article 14.—Plurigeneric hybrids should receive a conventional generic 
name, preferably that of some distinguished person, with the termination 
ara. 
A special g generic name should be formed for each distinct combination 
* Article 48.—When a genus or subgenus or species is moved in‘o another genus, 
when a variety or other division of a species is moved into another species, retaining 
there the same rank, the original name of the subgenus or section, the first specific 
epithet, or the original name of the division must be retained or must be re-established, 
unless in the new position eae exists one of the obstacles indicated in the Articles of 
Section 7. 
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