CONVOLVULACE^E. 173 



from a prostrate base, somewhat clammy. Leaves oblong- 

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

 cyme. Lobes of the corolla mostly obcordate. 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. 



4. P. Hood'ii, Richards, of the North- West, forms broad, 

 dense mats or tufts, 2-4 inches high. Leaves awl-shaped. 



2. GIL IA, Ruiz and Pay. 



G. linea'ris, Gray. (Collo'mialinea'ris, Nutt.) A branch- 

 ing herb with alternate, linear-lanceolate or oblong, sessile 

 and entire leaves. Corolla salver-form, with stamens un- 

 equally inserted in its narrow tube, lilac-purple to nearly 

 white. Ovules solitary. Found on the sands at the mouth 

 of Eel River, Restigouche Co. , N.B. 



ORDER LXVIII. 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 tbe Genera. 



1. Calyste'gla. Calyx enclosed in 2 large leafy bracts. Corolla fun- 



nel-form, the border obscurely lobed. Pod 4-seeded. 



2. ('ouvoT vuliis. Calyx without bracts. 



3. Cus'cnta. Leafless parasitic slender twiners, with yellowish or red- 



dish stems, attaching themselves to the bark of other plants. 

 Flowers small, mostly white, clustered. Corolla bell-shaped. 

 Stamens with a fringed appendage at their base. 



1. CALYSTE'GIA, R. Br. BRACTED BINDWEED. 

 1. C. se'pium, R. Br. (Convolvulus sepium, L., in 

 Macoun's Catalogue.) (HEDGE BINDWEED.) Stem 



