(98) 



The family is a large one of the tropics of both hemispheres. 

 In the recent monographic revision by Carl Mez (Engler, 

 Pflanzenreich, Heft 9, 1902) nine hundred and thirty-three 

 species are enumerated distributed among thirty-two genera 

 and nine fossil genera are enumerated. Four species, all 

 arborescent, enter the United States, one of them a true 

 Myrsine, the others referred to the genera Icacorea {Ardisia) 

 and Jacquinia. They range from southern Florida through 

 the West Indies, Central America, Mexico and northern 

 South America. 



Myrsine crassa Lesq. PI. 53. /. 6. 



Myrsine crassa Lesq. Fl. Dak. Group, 114. fL 52. f. 2, 

 3- 1892. 



The single leaf which I have referred to this Dakota species 

 was lost after the hurried sketch which is here reproduced 

 was made and the reference can therefore be only provisional 

 unless additional specimens are discovered. 



The outline and venation suggest this species although it is 

 a somewhat smaller leaf. I was at first inclined to refer it 

 to Liriodendrofsts, which it greatly resembles, but in the 

 absence of the apex our reference of it to this species of 

 Myrsine is warranted. 



Of Uncertain Affinities. 



Dewalquea Groenlandica Heer (?). PL SJ.f. 3. 



Dewalquea Groenlandica Heer, Fl. Foss. Arct. 6^: 87. 

 fL 29./. 18, ig; fl. 42./. s, 6; fl. 44./. 11; 7: 37. 

 fl. 62. f. 5, 6. Newb. Fl. Amboy Clays, 129. fl. 41. f. 

 .?, J, 12. 1896. Hollick, Ann. N. Y. Acad. Sci. 11 : 



A,iZ'i>l' 3^-f' 7' 1898. 

 Obscure leaf-remains of uncertain botanical affinities ; in- 

 cluded by Heer in the Ranunculaceae. Leaves (or leaflets) 

 with very tapering base, thick midribs, and short petioles ; 

 apparently rather coriaceous in texture and with the venation 

 entirely obliterated. They agree fairly well with the figures 

 of this species as cited above. This is another species which 



