1917] Fernald,— Forms of American Gentians 149 
and Long Island and occurring very locally in central New York. No 
New England material of it has been observed. 
To summarize, the three plants which have been so generally con- 
fused in northeastern floras may be distinguished by the following key: 
Corolla with nearly truncate summit; the firm true lobes nearly obsolete, 
narrowed at summit; the broader intervening thin prolongations of the 
membranous bands forming a fimbriate-dentate border. .. . . G. Andrewsit. 
Corolla with the broad rounded lobes 2-8 mm. long, as broad as or broader 
than the intervening 2-3-cleft appendages. 
Leaves lanceolate to ovate-lanceolate, acuminate: involucre of 4-6 leaves; 
the 2—4 outer (except in dwarf specimens) subequal, 5-10 cm. long, 
2—4 cm. broad: calyx-lobes herbaceous, oblong to obovate, finally spread- 
ing: corolla 2.5—4 cm. long, scarcely opening; the rounded lobes slightly 
es ics ok cbc a rescs asses yd hae G. clausa. 
Leaves oblong to elliptic, acute or obtuse, not acuminate: involucre of 2—4 
leaves, the outer 3-6.5 cm. long, 0.7-2 cm. broad: calyx-lobes firm, 
linear to oblanceolate, ascending: corolla 3-5 cm. long, distinctly open; 
the rounded to subacute lobes erect.................-5 G. Saponaria. 
Further observation of the plants is required before the exact 
distribution in the northeast is known, but at present it may be stated 
as follows: 
GENTIANA ANDREWsII Griseb.— Meadows, prairies, low thickets, 
banks of streams, ete., frequent in the southeastern states, extending 
locally northward and eastward to York, Frontenac and Carleton 
Counties, Ontario, Ottawa and Hochelaga Counties, Quebec, and 
eastern Massachusetts. ` 
G. cuausa Raf.— Borders of rich woods and thickets, banks of 
streams, meadows, etc., locally abundant from Kennebec County, 
Maine, to Lake Champlain, New York, and westward to western New 
York, southward to Bristol County, Massachusetts, Providence 
County, Rhode Island, southern Connecticut, and locally along the 
mountains to North Carolina. 
G. Saponarta L.— Glades and sandy swamps of the coastal plain 
and piedmont regions north to Staten Island and Long Island, and very 
locally inland to Yates County, New York (Sartwell). 
The writer has not seen fresh flowers of either G. Andrewsvi or G. 
Saponaria but the fresh flowers of G. clausa are of a decided porcelain- 
blue color quickly changing in age or in drying to a rich blue-violet. 
VII. SOME FORMS OF AMERICAN GENTIANS. 
GENTIANA AMARELLA L. Sp. PI. i. 230 (1753). G. acuta Michx. FI. 
Bor.-Am. i. 177 (1803). G. plebeja Cham. ex Bunge, Moscou Soc. 
Nat. Hist. Nouv. Mém. i. 250, t. 9, fig. 5 (1824). G. Amarella, var. 
