George Thurber and William Munro Gramineae papers, circa 1850-1892
Page 97
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Transcription
(This is so new L. ferrugata (sic) pum.) as has not been found on this continent ) that I am puzzled what to do with it. It is surely to be distinguished from Russian specimens of that spe- cies in Hort. For. The chief points of difference with the type are the smaller leaves, the smaller t. [illegible] pulecent (pum.) and shorter crown and less pulvare area, which is pulvarent upon the twisted portion.