524 



UMBELLIFEREAE. 



[VOL. II. 



2. Sanicula gregaria Bicknell. 



Clustered Snake-root. (Fig. 2665.) 



Sanicula gregaria Bicknell, Bull. Torr. Club, 22: 



35*- i895- 



Stems erect, weak, usually clustered, i-3 

 high, umbellate-branched, the branches slen- 

 der. Leaves thin, bright green, 5-divided; seg- 

 ments stalked, obovate-cuneate to lanceolate, 

 acute or acuminate, doubly serrate with bristle- 

 tipped teeth, sharply incised, mostly less than 3' 

 long; basal leaves numerous, those of the stem 

 only 1-2, petioled; involucral leaves large, 3- 

 parted, those of the involucre foliaceous; pedi- 

 cels of staminate flowers i // -i>^ // long, 3 or 4 

 times the length of the minute campauulate 

 calyx; calyx-lobes ovate, obtuse; petals yellow- 

 ish, much surpassing the calyx; anthers bright 

 yellow; fruit stipitate, broadly obovoid, i }" 

 long, the slender styles recurved; bristles 

 weak, very small; oil-tubes 5, small; seed not 

 furrowed. 



In moist woods and thickets, southern New 

 York to Virginia, Kansas and Nebraska. May- 

 June. 



3. Sanicula Canadensis L. Short-styled 

 Snake-root. (Fig. 2666.) 



Sanicula Canadensis L. Sp. PI. 235. 1753. 

 Sanicula Marylandica var. Canadensis Torr. Fl. U. 



S. 302. 1824. 



Rather dull green; i-4 high, widely branched, 

 the branches forked, the umbellate fruit-bearing 

 rays only 1"-$" long. Stem leafy; leaves petioled, 

 3~5-divided; segments cuneate-obovate to narrowly 

 oblong, acute, mucronate-serrate, or incised, often 

 small, but sometimes 3'^' long; involucral leaves 

 small; those of the involucel bract-like; staminate 

 flowers few, on pedicels i" long or less; calyx W 

 long, parted into linear-lanceolate acute lobes which 

 exceed the minute white petals; fruit short -stipitate, 

 subglobose, i"-i#" long; the bristles slender; 

 styles short, included; oil-tubes 5; seed dorsally 

 furrowed. 



In dry woodlands, Massachusetts to Florida, Ne- 

 braska and Texas. June-Aug. 



4. Sanicula trifoliata Bicknell. Large- 



fruited Snake-root. (Fig. 2667.) 



5. trifoliata Bicknell, Bull. Torr. Club, 22: 359. 1895. 

 Stem slender, i-2% high, the branches 



alternate, the lower often nearly erect, simple, 

 or forked into numerous branchlets; umbels of 

 3-5 often irregular rays 4"- 12" long, leaves 

 rather bright green, thin, slender-petioled, 3- 

 divided, the lateral segments often cleft; seg- 

 ments stalked, broadly ovate, or obovate, or the 

 lateral ones rhomboid, acute, coarsely doubly 

 serrate, or incised, the teeth spinulose-cuspidate; 

 staminate flowers few, on slender pedicels about 

 2" long; calyx l /z" long, its linear rigid lobes 

 incurved, subulate; petals white, about half as 

 long as the calyx; styles short, included; fruit 

 3" long, or more; larger oil-tubes 2, with numer- 

 ous minute ones; seed not sulcate. 



In hilly woods, Connecticut to Ontario, south- 

 eastern New York and Indiana. June-July. 



