of the Genus Tofieldia. | 239 
Narthecium, which agrees most in habit with the genus before 
us, is distinguished from it by the want of a calyx; as well as by 
having a simple germen and single style; hairy filaments; and a 
membranous tunic, tapering at each end, to the seeds. Anthe- 
ricum, including the PAalangium of 'Tournefort and Jussieu, dif- 
fers from Tofieldia in having no calyx; a simple germen and 
style; and angular seeds. Helonias, to which Willdenow refers 
our T. palustris, confounding under that solitary species nearly 
the whole genus, has a simple germen and capsule, though three 
styles; very few seeds in each cell; and wants the calyx. 
The species of Tofieldia have hitherto been even less understood 
than its generic characters, as the following exposition will show. 
1. T. palustris, capitulo ovato, caule glabro filiformi aphyllo, pe- 
talis obovatis obtusis, germinibus subrotundis. 
T. palustris. Huds. Angl. 157. Sin. Brit. 397. Engl. Bot. 
t. 536. Ait. Hort. Kew. v. ii. 324. 
T. pusilla. Pursh Amer. Sept. 246. 
Anthericum calyculatum. Linn. Sp. Pl. 447. Fl. Lapp. ed. ii. 
106. ¢.10. f.3. Fl. Dan. t. 36. Lightf. Scot. 181. t. 8. f. 2. 
Helonias borealis. Willd. Sp. Pl. v. ii. 274. 
Narthecium pusillum. Michaux Boreali- Amer. 9. i. 209. 
Phalangium scoticum palustre minimum, iridis folio. Rai Syn. 
875. Tourn. Inst. 369. — eni 
Native of the black boggy margins: “of pools | and M anti rills, "E 
on the mountains of Lapland, Scotland, Durham, and North 
. America, p rticularly 1 lake Mistassins, flowering from June to 
August. 
= This is a perennial P ieee inei; of SE ds stature, entirely 
smooth i in every part. The root is horizontal and somewhat tu- 
berous, or — but slender, with very long, tough, white, zig- 
zag 
