(1) Lemon, lime and Canton lemon are three independet botanical species, and Citrus limonia OSBECK given exclusively to the Canton lemon , is not applicable to the European lemen, despite its present use for both. (2) Citrus medica β Limon LINN. is the first scientific name given to the lemon, not including the lime. It is therefore erroneous to take it for lime or to think it involvinglime, as is occasionally so misrepresented. (3) Limon vulgaris MILL. and Citrus Limon. BURM. are names of lemon bearing the same date, and are equally the first binomials of lemon in the species rank raised from the previous subordinate position under citron. (4) The attempt to combine the former in the from of Citrus vulgaris is not permissible, on account of the existence of the homonym Citrus vulgaris RISSO, though this name is at present rejected as a synonym of Citrus Aurantium LINN., the sour orange. (5) It is likewise impossible to make use of such combinations as Citrus Limon (MILL.) TARGIONI or Citrus Limon HORT. ex STEUDEL, or otherwise creating Citrus Limon n. sp., for the sake of the existence of antedate names, at least the homonym C. Limon BURM. (6) Although Citrus Limon BURM. includes lime in its cited literatures and appears to mean lime, it is nevertheless correct to approve that it properly refers to. the Linnean name of lemon, bears the right diagnostic character of lemon, and is backed by reasonable localities of occurence and an authentic literature of lemon. (7) By these reasons, Citrus Limon BURM. (excl. apart of citations) is concluded as valid, and it does not contradict to any rule of botanical nomenclature in applying it for the name of common lemon . It is therefore recommended to use this name as the authoritative specific name of lemon.
著者は前號に掲げたる論著 (17) に於て Lemon の學名として目下用うる所の Citrus Limonia OSBECK を排し, Citrus Limon BURM. を採用すべき事を提議したり, 蓋 SWINGLE (16) の前學名使用を提案したりし理由は OSBECK の Citrus Limonia の學名中廣東産 Na-mang と稱するもの以外に European lemon を含有せりとの前提に基けるものなるが, 著者の研究に據れば Canton lemon は啻に European lemon と全然異る種類たるのみならず, OSBECKの記行文中此兩者を混同せる點を發見せず, 依て Citrus limonia の學名は唯前者にのみ當嵌るものなるが故 European lemon には其 earliest calid name たる N. L. BURMANN の Citrus Limon を推稱せるなり。今此問題に關する複雑なる命名學上の疑義を茲に闡明せんと欲す。