FEB. 1907. FLORA SAND KEYS OF FLORIDA MILLSPAUGH. 209 



MARQUESAS "B" 

 MARCH n, 1904 



Andropogon glomeratus (2163) 

 f Avicennia nitida (2165) 



< Borrichia arborescens (2157) 

 . : Canavalia obtusifolia (2162) 



Cyperus brunneus (2159, 2161) 

 <fo Distichlis maritima (2l6o) 

 TTt Dondia linearis (2167) 



Euphorbia buxifolia (2168) 

 n Laguncularia racemosa (2164) 



Sesuvium portulacastrum (2166) 

 f Suriana maritima (2158) 



1 Uniola paniculata (2169) 



This, smallest of the Marquesas group, is a sand key 40 'by 100 

 feet in extent, barely twelve inches above the wash of the sea. Its 

 sloping strand is broad and clean except at the southeastern point 

 where the encroachment of the sea upon the Laguncularias shows a 

 tendency to loss of insular area. The flow of the tide forth and back 

 through the narrow passages, both to the north and south of this islet, 

 is apparently too strong to allow the fruits of Rhizophora to gain a 

 roothold upon any part of its shores. 



The Uniola- Euphorbia association, at the wave limits of the north 

 strand, is a very characteristic one, terminated at both extremities by 

 pure colonies of Sesuvium. The scattered flora of the central portion 

 of the islet contains more of the elements of Marquesas ' ' A" to the south 

 than of "C" to the north, and one element, in Distichlis, that does not 

 appear upon either of its neighbors. 



Without the aid of the mangrove it would seem highly probable 

 that this will be one of the last elements to play its part in joining the 

 islets of the Marquesas group into a complete mass. 



