172 COMMON CANADIAN WILD PLANTS. 



1. HYIIROPHYL'LLM, L. WATEBLEAF. 



1. H. Virgin'ieum, L. Corolla bell-shaped, the 5 lobes 

 convolute in the bud ; the tube with 5 folds down the inside, 

 one opposite each lobe. Stamens and style exserted, thefla- 

 ments bearded below. Stem smoothish. Leaves pinnately clef t 

 into 5-7 divisions, the latter ovate-lanceolate, pointed, cut- 

 toothed. Calyx-lobes very narrow, bristly-ciliate. Flowers 

 white or pale blue. Peduncles longer than the petioles of 

 the upper leaves. Rootstocks scaly- toothed. Moist woods. 



2. H. Canaden'se, L., differs from the last in having the 

 leaves palmately 5-7-lobed, and rounded ; the peduncles 

 shorter than the petioles ; and the calyx-lobes nearly smooth. 

 Rich woods. 



3. H. appeil'lJeula'tum, Michx. Stem, pedicels, and 

 calyx hairy. Stem-leaves palmately 5-lobed and rounded, 

 the lowest leaves pinnately divided. Calyx with a small re- 

 flexed appendage in each sinus. Stamens sometimes not 

 exserted. Rich woods, S. W. Ontario. 



2. llllli. L. 



E. Nyete'lea, L. A delicate branching annual, minutely 

 or sparingly roughish-hairy. Leaves pinnately parted into 

 7-13 narrow sparingly cut-toothed divisions. Peduncles 

 1-flowered, solitary in the forks or opposite the leaves. 

 Flowers small, whitish. Capsule pendulous. N. W. 



OBDEB LXVII. POLEMONIA'CE^. (POLEMONIUM F.) 



Herbs with regular pentamerous and pentandrous flowers, 

 but a 3-celled ovary and 3-lobed style. Lobes of the corolla 

 convolute in the bud. Calyx persistent. 



Synopsis of the Genera. 



1. Phlox. Corolla salver-form. Leaves opposite, entire. 



2. liii'iu. Corolla tubular-funnel-fonn or salver-shaped, very slender. 



Leaves alternate, entire. 



1. PHLOX, L. PHLOX. 



1. P. divarica'ta, L. Corolla salver-shaped, with a long 

 tube. Stamens short, unequally inserted. Stem ascending 



