Dicotyh or Exogenous Plants. 43 



€. Sepals petal-like, the larger upper one hooded and covering- the 2 long- 

 clawed small petals AccDii/mii. 10 



€. Not as above '{, . 



f. All but the lower leaves opposite or whorled I'g . 

 f. Leaves alternate :i . 

 g-. Involucre leaf-like, remote from the flovv'er, peduncles \-^o-wcreA. . .Anemone. 11 



g. Involucre close to the flower, calyx-like, leaves simple, 3-lobed Hepatica. 12 



g. Involucre compound, at the base of an umbel of flowers Syndestnon. 13 



h. Sepals 4, leathery, leaves pinnate ; woody vine Clematis. 14 



i. Leaves palmately-lobed, the lobes cut and toothed, flowers corym- 

 bose TrautTettei'ia. 15 



i. Leaves, etc., not as above 1 . 



k. Petals "1, j^llow, each with a scale at base Ranunciilns. 10 



k. Petals 5, white, a spot or naked pit at base Ba/rackium. 17 



k. Petals 8-9, yellow ; sepals 3 Ficaria. 18 



1. Flowers panicled, leaves decompound, petioles dilated at base. . . . Thalictrum. 19 

 1. Flowers in a leafy involucre, leaves finely divided \igella. 20 



1. Genus HY-DRAS'-TIS.— vSepals 3, petal-like, falling off when the 

 flower opens in earl}- spring; a single radical leaf and simple stem 

 with two leaves. >-s / 



Hy-dras'-tis can-a-den'-sis L. Golden Seal. — Ovaries becoming a head ^ . 

 of crimson berries. -'' "' 



2. Genus CAL'-THA. — Sepals (i-l), petalloid, petals none; leaves 

 round, glabrous; stems hollow, furrowed. 



Cal'-tha pa-lus'-tris ^^. Marsh Marigold. — In swamps and wet meadows. 



3. Genus TROL'-LI-US. — Sepals 5-15, petals 1-lipped, small, ntimer- 

 ous; leaves palmately parted ; flowar solitary, large. 



Trol'-li-us lax'-us Salisb. Globe Flower. — In deep swamps. 



4. Genus l-SO-PY'-RUM.— Sepals 5, petal-like ; leaves alternate, 2 

 to S-ternatel}' compound, leaflets 2 to o-lobed. 



i-so-py'-rum bi-ter-na'-tum (Raf) T. & G. — Root thickened here^/^'^«- /^ 

 and there into little tubers. 



5. Genus COP'-TIS. — Sepals 5-7, petal-like; scape 1-flowered; 

 plant low, smooth, perennial ; leaves evergreen, shining, leaflets .'5. 



CopMis tri-fo'-li-a Salisl). Goldthread. — Root of long, yellow, bitter 

 fibres. 



