4 
SANGUINARIA. 307 
that even as long ago as the year 1732 Dillenius published two 
species of bloodroot, one of them in two varieties, and that Lin- 
naeus himself gave out the one species S, Canadensis under 
three varieties. 
The following suggestions of an extension of the genus may 
doubtless invite and direct a much needed investigation of it. 
1, S. CANADENSIS, Linn. Sp. 505, excluding varieties 3 and y. 
S. minor, ètc., Dill. Elth. t. 252, fig. 327? Marked by a smaller 
and orbicular corolla of 8 petals or fewer; but mature foliage 
much the largest in the genus, often 8 inches wide, constantly 
broader than long, the 7 lobes coarsely toothed. 
Occurs throughout New England, Canada and northern New 
rk. 
2. DILLENIANA. S. Canadensis, vars. 2 and y, Linn. I. c. 
S. major, Dill.l. e. Marked by large corolla of notably quad- 
rangular outline the petals 10 to 16, of which 4 are much 
larger and longer; mature foliage never large in proportion,-the 
lobés themselves 3-lobed, not coarsely, or even in any wise 
notably toothed, the whole leaf as long as broad, 
From New Jersey and Pennsylvania southward to North Car- 
olina, also apparently westward along the Ohio to Missouri. 
3. S. AUSTRALIS. Rootstock less fleshy, apparently even hard 
and with much woody fiber, the fibrous roots more copious and 
finer : leaves not large, lobed to below the middle and the lobes 
coarsely toothed rather than lobed: pods short and thick, borne 
on peduncles that far supass the leaves. 
South Carolina to Alabama, collected by Ashe and by Mr. 
and Mrs. Karle. In all our more northerly bloodroots the long 
pods are borne beneath the leaves, so short are their peduncles. 
4. S. ROTUNDIFOLIA. S. Canadensis, var. 3, Wood, Bot., p. 
222 (ed. of 1866)? Mature leaves not even glaucescent above, 
but of a rich deep green, beneath very glaucous, the outline sub- 
