|Reprinted from Ruopora, Vol. 21, No. 241, January, 1919.] 
Issued 
sb. LO LILI 
CONTRIBUTIONS FROM THE GRAY HERBARIUM 
OF HARVARD UNIVERSITY. 
New Serres.— No. LVII. 
I. Tue Unrry or THe Genus ARENARIA ‘ ‘ 1 
Il. THe Tyre or tHe Genus ALSINE . ; ; 7 
ill. Tur EARLIER NAMES FOR ALSINOPSIS , 9 
IV. Tue Amertcan REPRESENTATIVES OF ele 
SAJANENSIS. . 12 
V. Tue Speciric lee OF ees GROEN- 
LANDICA AND A. GLABRA : : ; : ii 
VI. THe American VARIATIONS OF ARENARIA 
VERNA , : ; ; : : : 21 
M. L. FEerRNa.p. 

