34 Rhodora [FEBRUARY 
Kennebec, Androscoggin and Oxford Cos., Marne, Belknap Co., 
New Hampsuire, Norfolk and southwestern Middlesex Cos., Mass- 
ACHUSETTS, Litchfield Co., Connecticut, Oneida Co., NEw YORK 
and the uplands of Pennsylvania. 
7. S. MINIMUM Fries.—Shallow water of springy spots, brooks, pools 
and ponds, NEWFOUNDLAND and Anticosti Island, QUEBEC to Lake 
Ontario basin, ONTARIO, Manitoba and Alaska, south to Cape Breton 
Island and northern and northwestern Nova Scotia, southeastern 
and central Marne (south to Androscoggin Co.), Belknap Co., NEw 
HAMPSHIRE, southern and southwestern Middlesex Co., MAssACHU- 
sETTS, Litchfield Co., CONNECTICUT, central and western New YORK, 
uplands of northern New Jersey and Pennsylvania, Michigan, Wis- 
consin, Utah and Oregon; Eurasia. 
8. S. HYPERBOREUM Laestad.—An arctic species, extending south, 
especially in peaty pools, to NEWFOUNDLAND, Cape Breton Island, 
Nova Scott, southern Saguenay Co., Anticosti Island and Big River. 
QUEBEC, northern Manitoba and southern Alaska; Eurasia. 
Gray HERBARIUM. 
THE IDENTITY OF THE GENUS ADVENTINA RAF. 
S. F. BLAKE. 
In 1836 Rafinesque! described under the name Adventina a new gen- 
us of Asteraceae which he had found growing as a weed in the Bartram 
Garden at Philadelphia. In spite of the full description given, no 
later author has identified his plant, or plants, for two species were 
described. Bentham, in the Genera Plantarum, omitted this, as he 
did practically all the other names proposed by Rafinesque; Baillon 
likewise does not refer to it, nor does O. Hoffmann in the Pflanzenfam- 
ilien; and in Dalla Torre and Harms's Index it is given only among 
the “Genera incertae sedis." From Rafinesque's description,? which 
1 New Fl. N. Amer. 1: 67-68. 1836. 
2'"ADVENTINA Raf. Radiate. Perianthe globular 5 phyle, Sepals connivent equal 
ovateacute. Phoranthe flat chaffy. Rays 5 fertile, equal small and opposed to sepals, 
ligules short trilobe white, ovary and seed shut between the sepals and internal 
palea or chaff, similar to sepals oblong and thus bivalved; style very short bifid, 
pappus paleaceous multifid. Floscules of the disk minute yellow complete, chaff 
lanceolate flat, corolla tubular 5toothed, stamens and style inclosed, pappus cam- 
panulate multifid.— Seeds black oblong compressed bivalved in rays, oblong terete 
in disk. Leaves opposite, flowers terminal. 
"1. PARVIFLORA Raf. Stem slender branched diffuse smooth, leaves petiolate ovate 
acute angular dentate, lower rounder, upper nearly sessile and entire; flowers terminal 
lax—Growing spontaneous for several years in the orchard of Bartram’s Garden, 
come with seeds from the South. Annual, Estival, pedal. Leaves thin smooth, 
