162 DROSERACEAE. [Von. II, 
3. Drosera longifolia L. Oblong-leaved 
Sundew. (Fig. 1805.) 
Drosera longifolia 1,. Sp. Pl. 282. 1753. 
Drosera Anglica Huds. Fl. Angl. Ed. 2, 135. 1778. 
Similar to the preceding species, but the leaf-blade is 
erect, longer (8//-15’’ long, 134/’-2’’ wide), elongated- 
spatulate and narrowed into a glabrous petiole 1/—4/ 
long; pedicels %4’/-3’’ long; flowers several, racemose, 
white, 2//-214’// broad; seeds oblong, obtuse at both 
ends, the testa loose. 
In bogs, Newfoundland and arctic America to Manitoba 
and British Columbia, south to Ontario and California. Also 
in northern Europe and Asia. Summer. 
4. Drosera linearis Goldie. Slender-leaved 
Sundew. (Fig. 1806.) 
Drosera linearis Goldie, Edinb. Phil. Journ. 6: 325. 1822. 
Scape low but sometimes exceeding the leaves, glabrous. 
Petioles erect, glabrous, 2-4’ long; blade linear, 1/—3/ long, 
about 1’’ wide, densely clothed with glandular hairs, obtuse 
at the apex; flowers few, or solitary, white; petals somewhat 
exceeding the sepals; seeds oblong, the testa close, smooth 
and somewhat shining. 
In bogs, shores of Lake Superior and Lake Huron, west to 
the Canadian Rocky Mountains. Blooms a little later than ). 
rotundifolia when the two grow together. 
5. Drosera filiformis Raf. ‘Thread-leaved 
Sundew. (Fig. 1807.) 
Drosera filiformis Raf. Med. Rep. (II.) 5: 360. 1808. 
Drosera tenutfolia Willd. Enum. 340. 1809. 
Scape erect, glabrous, 8’—20’ high. Leaves narrowly lin- 
ear or filiform, glandular-pubescent throughout, 6/-15/ long, 
about 1’” wide, usually acutish at the apex, with no distinc- 
tion between blade and petiole, woolly with brown hairs at 
the very base; racemes I-sided, 10-30-flowered; pedicels 2’/- 
4’’ long; flowers purple, 4’’-12’” broad; petals obovate, 
much exceeding the sepals; seeds fusiform, acute at each 
end, the testa minutely punctate. 
In wet sand, near the coast, eastern Massachusetts to Florida. 
July-Sept. 
