7 ° 
H. O. JUEL 
been found, so that it will be possible to publish a continuation 
of his narrative. 
In this work many plants are mentioned, and their economic 
value as well as other particulars about them are related, but 
there are no descriptions. Kalm intended to write a special 
work on the flora of Canada, as can be seen in the introduction 
of Spec, plant, of 1753, where we find under the »auctores re- 
formatores»: »Kalm Petr. Plantse canadenses propediem edendae » . 
This work has not been published and the ms. is lost. It was 
Linnaeus who published the new species discovered by Kalm. 
How far he has used Kalm’s ms. in describing his plants can 
no lonofer be ascertained. He cites him as the author of three 
generic names (Lechea, Gaultheria, Polymnict), but only in the 
case of one species have I found his name cited after the dia¬ 
gnosis (Tilia americana), otherwise he only cites him as the finder 
of certain species. 
In 1751, the year of Kalm’s return to Sweden, L. J. Chenon 
defended, under Linnaeus’ presidium, a dissertation entitled »Nova 
plantarum genera». Its first part has the title »Genera Americae 
septentrionalis». In it we are told that Kalm had recently retur¬ 
ned from N. America bringing with him a huge treasure of con- 
chylia, insects and amphibia, in addition to dried and living plants 
and also seeds. Then follows a short account of the earlier 
works on the flora of N. America, containing the names of Cor- 
nuti, Banister, Plukenett, Bobartius, Rajus. Of his contempo¬ 
raries the author mentions Catesby, Gronovius, Mitchell, Col- 
den, Dillenius, Ehret, Miller, the anonymous Catalogus arborum 
etc. Lond. 1730, Van Royen and Linnaeus. Finally it is said 
that Kalm’s large collections of plants will give the material for 
a very rich »Flora Canadse», which is expected to appear in the 
next year. A list is then given of 70 genera of plants endemic 
in N. America. Then follow the descriptions of some new genera 
of plants. Aletris L., Dirca L., Gaultheria Kalm, Helonias L., 
Kalmia L., Lechea Kalm, Polymnia Kalm, Sarothra L. are 
described from Kalm’s specimens and according to his notes, the 
rest are quoted from Mitchell or Gronovius. 
