Vou. II.] CARROT FAMILY. 523 
4. Eryngium prostratum Nutt. Pros- 
trate Eryngo. (Fig. 2663.) 
Eryngium integrifolium Walt. Fl. Car. 112. 1788? 
Eryngium prostratum Nutt.; DC. Prodr. 4: 92. 
1830. 
Prostrate, diffusely branched, rooting from the 
nodes, the branches very slender, sometimes 18’ 
long. Lower and basal leaves slender-petioled, 
oval or oblong, mostly obtuse, entire, or crenate- 
dentate; stem-leaves smaller, often clustered at 
the nodes, ovate, few-toothed, or entire or some 
of them 3-parted; heads ovoid-oblong, dense, 
about 3’ long, mostly shorter than the lanceo- 
late reflexed bracts; bractlets very small; fruit 
about 4” long, tuberculate. 
In low grounds, Kentucky to Missouri, south to 
Florida and Texas. Summer. 
19. SANICULA L. Sp. Pl. 235. 70. 1753. 
Perennial or biennial mostly glabrous herbs, with alternate palmately 3-7-foliolate or pin- 
natifid leaves and small yellowish white or purplish flowers in compound generally few- 
rayed umbels. Umbellets globose. Involucre foliaceous; involucels small. Calyx-lobes 
membranous, mostly persistent. Petals obovate, or narrower, incurved at the apex, emar- 
ginate. Disk flat. Fruit somewhat flattened laterally, subglobose, covered with hooked 
bristles in our species. Carpels not ribbed; oil-tubes usually 5. [From the Latin, to heal.] 
__ About 20 species, natives of the north temperate zone, South America and South Africa. Be- 
sides the following, about 10 others occur in the southern and western parts of the United States. 
*% Perennial; some staminate flowers in separate heads; styles longer than the bristles. 
Petals and anthers greenish white; calyx-segments lanceolate, cuspidate; fruit 3'’ long. 
1. S. Marylandica. 
Petals and anthers yellow; calyx-lobes ovate, obtuse; fruit 1%’’ long, orless. 2. S. gregaria. 
% + Biennial; staminate flowers never in separate heads; styles shorter than the bristles. 
Leaves 3-5-divided; pedicels of staminate flowers 1’’ long; fruit less than 2'’ long. 3. S. Canadensis. 
Leaves 3-foliolate; pedicels of staminate flowers 2'’ long; fruit 3’ long, or more. 4. S. ¢rifoliata. 
1. Sanicula Marylandical,. Sanicle. 
Black Snake-root. 
(Fig. 2664.) 
Sanicula Marylandica I,. Sp. Pl. 235. 1753. 
Rather stout, 14°-4° high, usually simple, 
topped by a 2-4-rayed umbel. Leaves firm, 
bluish green, the basal long-petioled, the up- 
per sessile, 5~7-parted; segments 1 14’-6’ long, 
obovate to oblanceolate, irregularly serrate or 
dentate, often incised; involucral leaves much 
smaller, 3-cleft; involucel-bracts small, rarely 
1’’ long; pedicels of staminate flowers 2// 
long; calyx 1’ long, parted into subulate seg- 
ments; petals greenish white, little exceeding 
the calyx; anther greenish white; fruit ses- 
sile, ovoid, 3/’ long, the slender recurved 
styles longer than the stout bristles; oil-tubes 
5, large; seed furrowed dorsally. 
In rich woods, Newfoundland to the Rocky 
Mountains, south to Georgia. May-July. 
