62 COMMON CANADIAN WILD PLANTS. 



84. GLEDIT'SCHIA, L. HONEY-LOCDST. 

 2. G. triaean'thOS, L. Thorns stout, often triple or 

 compound. Pods linear, often more than a foot long, -with 

 pulp between the flat seeds. — Common in cultivation, and 

 established on Point Pelee. 



25. GYMNOC'IABUS, Lam. Kentdcky Coffee-tkee. 

 G. Canadensis, Lam. Leaves 2-3 feet long, without 

 stipules ; leaflets ovate. Pod 6-10 inches long and 2 inches 

 broad. — Established in a few localities. 



Oedek XXXIl. ROSA'CE.a:. (EosB Family.) 

 Herbs, shrubs, or trees, with alternate stipulate leaves, 

 and regular flowers. The petals (mostly 5) and stamens 

 (mostly more than 10} inserted on the edge of a disk which 

 lines the calyx-tube. (See Part I., sections 48 to 57, for 

 typical flowers.) 



Synopsis of tlie Genera. 



Suborder AMYGDALE.^;. 



Carpel solitary, becoming a drupe, entirely free from the 



calyx, the latter deciduous. Ovules 2, but seed solitary as 



a rule. Trees or shrubs with simple leaves and deciduous 



stipules. 



1. Prii'nus. Flowers perfect. Petals and calyx-lobes 5. Fruit a 



drupe. 



Suborder ROSACEJE. 

 Carpels few or many, free from the persistent calyx, be- 

 coming achenes, follicles, or drupe-like in fruit. 



2. Splrse'a. Carpels mostly 5, forming follicles in fruit. Calyx .5-cleft, 



short. Petals obovate, similar. 

 S. Gllle'nin. Carpels and fruit as in Spir^a. Calyx elongated, 6- 

 toothed. Petals slender, dissimilar. 



4. Agriuio'iiia. Carpels 2, forming achenes enclosed in the hardened 



calyx-tube. Calyx armed with hooked bristles. Flowers yellow, 

 in slender spikes. 



5. Alclieniil'la. Carpels 1-4, forming achenes enclosed in the persis- 



tent calyx-tube. Petals 7ioue. Stamens 1-4. Calyx-tube inver- 

 sely conical, the limb 4-parted, with 4 alternating bractlets. Low 

 herbs, with palmately-lobed leaves. 



