380 



proceedings: botanical society 



follows: "The genera of Linnaeus' Species Plantarum (1753) are to 

 be typified thru the citations given in his Genera Plantarum (1754)." 

 Under this clause the following genera were mentioned : 



Applying the method of types to the nickernut, Mr. Skeels called 

 attention to Mr. Trimen's identification of the Flora Zeylanica speci- 

 mens which are published in volume 24 of The Journal of the Linnean 

 Society, Botany. On the basis of these identifications, Mr. Skeele con- 

 cluded as follows : 



"In conclusion, going back to our three original species, the 'Catti 

 kitsjir of the East Indies, the Caesalpinia nuga (L.) Alton of the floras, 

 under the method of types of the American Code, becomes Caesalpinia 

 crista L., the type being Fl. Zeyl. 157. The common grey-seeded nicker- 

 nut generally known as Caesalpinia or Guilandina honducella, becomes 

 Guilandina bonduc L., the type being Fl. Zeyl. 156. And the yellow- 

 seeded, large-leafletted nickernut, generally known as Guillandina bonduc 

 becomes Guilandina major (DC.) Small, being based thru De CandoUe, 

 on Guilandina bonduc L. Species Plantarum, ed. 2." 



What would be the effect of the irctic night on tropical or subtropical 

 vegetationf Dr. F. H. Knowlton. Dr. Knowlton called attention to 

 the ancient floras of the North Polar region. Many of the fossil plants 

 found there are of a tropical or subtropical character. No satisfactory 

 explanation of the relation of such plants to the conditions of light and 

 darkness supposed to have prevailed has been found. Dr. Knowlton 

 asked for suggestions from the members of the Society and a brief 

 discussion followed. 



C. L. Shear, Corresponding Secretary. 



