POLEMONIACE/E, CONVOLVULACE^E. 109 



blue. Peduncles longer tkan the petioles of the upper leaves. 

 Rootstocks scaly-toothed. Moist woods. 



2. H. Canadense, 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. appendicula'tum, Michx. Stem, pedicels, and calyx 

 hniry. Stem-leaves palmately 5-lobed and rounded, the lowest 

 leaves pinnately divided. Calyx with a, small reflexed appendage 

 in each sinus. Stamens sometimes not exserted. Rich woods. 



ORDER LXIII. POLEMONIA'CEJE. (POLEMONIUM F.) 



Herbs, with regular pentamerous and pentandrous flowers, but 

 a 3-cetted ovary and 3-lobed style. Lobes of the corolla convolute 

 in the bud. Calyx persistent. Represented commonly with us 

 by only one Genus, 



PHIiOX, L. PHLOX. 



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

 tube. Stamens short, unequally inserted. Stem ascending from 

 a prostrate base, somewhat clammy. Leaves oblong-ovate. 

 Flowers lilac or bluish, in a spreading loosely-flowered cyme. / 

 Lobes of the corolla mostly oboordate. Moist rocky woods. 



2. P. pilo'sa, L. Leaves lanceolate or linear, tapering to a 

 sharp point. Lobes of the pink-purple corolla obovate, entire. 

 Southwestern Ontario. 



3. P. subula'ta, L., the Moss Pink of the gardens, has escaped 

 from cultivation in some places. Stem creeping and tufted in 

 broad mats. Flowers mostly rose-colour. Dry grounds. 



ORDER LXTV. CONVOLVULA'CEJE. (CONVOLVULUS F.) 



Chiefly twining or trailing herbs, with alternate leaves and 

 regular flowers. Sepals 5, imbricated. Corolla 5-plaited or 5- 

 lobed and convolute in the bud. Stamens 5. Ovary 2-celled. 



Synopsis of the Genera. 



1. Calyste'gia. Calyx enclosed in 2 large leafy bracts. Corolla funnel -form, 



the border obscurely lobed. Pod 4-seeded. 



2. Convol'vulus. Calyx icithout bracts. 



