1923] Blake, North American Species of Limonium 55 
NOTES ON THE NORTH AMERICAN SPECIES OF 
LIMONIUM. 
S. F. BLAKE. 
SEVERAL years ago I published! in Rropona a revision of the sea 
lavenders (Limonium) of North America and Mexico. Two principal 
groups were recognized, one, characterized by a glabrous calyx, con- 
taining three species, two of the eastern coast and one of the western; 
the other, marked by a pubescent calyx, containing six species, of 
which five were eastern and one western. At the time this revision 
was published only one specimen from the region between New 
Jersey and North Carolina had been available for examination. This 
was a plant collected by Clayton in Virginia, which was not clearly 
referable to any of the nine species described. Recent examination 
of the material of the genus in the United States National Herbarium, 
including a number of specimens from the area just mentioned, has 
brought out several extensions of range and led to the reduction to 
varietal rank of two species recognized in my previous paper. 
Limonium angustatum, hitherto known only from Florida and Texas, 
proves to occur in Delaware, New Jersey, and even in New York, as 
well as in Louisiana and Alabama. The specimen of Berlandier 3179 
(in part) from Tamaulipas in the Gray Herbarium, referred to L. 
carolinianum in my original paper, has been sent for reexamination 
by Dr. B. L. Robinson. I now consider it referable rather to L. 
angustatum. In the light of the new material examined, L. angus- 
tatum seems to be no more than varietally separable from L. caro- 
lintanum. 
Limonium nashii, listed only from South Carolina to Texas and 
Tamaulipas, is now represented by two collections from New Jersey 
and one from Long Island. L. trichogonum, listed from Newfoundland 
and Labrador to New Jersey, extends southward to Maryland and 
Virginia. Intermediate specimens from New Jersey, Maryland, and 
North Carolina, as well as a Louisiana specimen closely similar to 
L. trichogonum, show that this plant is better treated as a geographic 
variety of L. nashii, of definite character in New England and north- 
ward but intergrading with L. nashii where their ranges adjoin. 
1 RHODORA 18: 53-66. pl. 118-119. 1916. 
