112 GEOLOGICAL SURVEY OF NEW JERSEY. 
Britton. Morris: Near Montville—Schrenk. Hunterdon: On 
red sandstone above Milford—Porter; and frequent in sand, 
middle and ‘southern counties. I completely fail to separate the 
two supposed eastern species. 
FICOIDEZ. 
SESUVIUM, L. 
Sea Purslane. 
S. maritimum (Walt.), B.S. P. (S. pentandrum, Ell.; S. Portulacastrum, 
Gray, not L.) 
Frequent on the sea-beaches. 
MOLLUGO, L. 
Carpet-weed. 
M. verRTIcILLATA, L. 
Waste and cultivated grounds. Common in most sections of 
the State; not yet abundant in the northwestern counties. Nat- 
uralized from the South. 
UMBELLIFERZ. 
HYDROCOTYLE, L. 
Water Pennywort. 
H. Americana, L. 
Gloucester: Occasional—B. Heritage; Mullica Hill—Britton. 
Burlington: Pemberton—Miss Willmarth. Monmouth: Banks 
of Squan River, rare—Knieskern; Keyport—R. W. Brown; 
Freehold — Lockwood. Camden: Along water-courses—Mar- 
tindale; and common in the middle and northern counties. 
H. umbellata, L. 
Southern -and middle counties. Atlantic: Atlantic City — 
Parker. Cape May and Camden:—Parker. Burlington: Bur- 
lington—Conrad. Ocean: Point Pleasant—Knieskern. Mon- 
mouth: Along muddy shore of the Navesink River, near Red 
Bank—Leggett. Gloucester: Common—B. Heritage. 
