248 PROCEEDINGS OF THE ACADEMY OF [Dee., 
14. GLOBIFERA J. F. Gmelin. 
Globifera J. F. Gmel., Syst. 2: 32. 1791. 
Type species, Anonymos umbrosa Walt. 
1. Globifera umbrosa (Walt.) J. F. Gmel. 
Anonymos umbrosa Walt., Fl. Carol. 63. 1788. Type, probably from 
lower South Carolina, identified by Dr. S. F. Blake, in Rhodora 17: 131. 
Micranthemum orbiculatum Michx., Fl. Bor. Amer. 1: 10. pl. 2. 1803. Type 
not verified, but reac "ean and late evidently of species here considered. 
ype of genus Micranthemu 
Micranthen.um emarginatum El, a Sketch Bot. 8. C. and Ga. 1: 18. 1816. 
“Grows in ditches a places—Vall’Ombrosa, Great Ogechee.”’ 
Type seen in Elliott ~r Spode at the Charleston Museum. Said to be 
“in the upper country, common,” and characterized from the 
common” (and evidently lowland) M. orbiculatum by its more remote 
and larger leaves. Globifera wmbrosa varies considerably in size of leaves, 
ut the ample collections at hand show this to be ecologic, and not to 
distinguish aan of differing range. 
Wet loam or in shallow water, in woodland, especially in river- 
bottoms, locally common throughout the Coastal Plain, especially 
near the ocean, North Carolina to central Florida and eastern Texas; 
‘rarely reported from above the fall-line. Also in eastern Mexico 
and the West Indies. 
Flowering from May to October, and soon ripening fruit. Corolla 
uniformly dull-white. Anthers red-brown. 
Pennell (Florida)—9706. 
15. HEMIANTHUS Nuttall. 
Hemianthus Nutt., Journ. Acad. Nat. Sci. Phila. 1: 119. pl. 6. 1817. 
Type species, H. micranthemoides Nutt., of Pennsylvania. 
1. Hemianthus glomeratus (Chapm.) Pennell, comb. nov. 
pices gto nuttallit glomerctum Chapm., Fl. 8. Un. St. ed. III. 313. 
897. “Rivers and wet banks, South T Merida. ” Type not verified. 
sae shores of lakes and rivers, known from Lake Okeechobee 
and along the Gulf coast from Tampa to the Caloosahatchee River, 
southern Florida. 
Flowering and fruiting probably throughout the year, the speci- 
mens seen collected in May and November. Not seen growing. 
This may be distinguished from the other species of the eastern 
United States, Hemianthus micranthus (Pursh) Pennell (H. micran- 
themoides Nutt.) of the Delaware and Chesapeake drainage by the 
following contrast: 
— obtuse or obtusish, less than one-fourth the length of the 
‘ terior lobe of the corolla nearly as long as the portion 
of the anterior lip below the base of the lateral lobes. 
H. micranthus. 
