6'2 COMMON CANADIAN WILD PLANTS. 



24. GLEDIT'SCHIA, L. HONEY-LOCUST. 



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'LADUS, Lam. KENTUCKY COFFEE-TREE. 

 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. 



ORDER XXXII. ROSA'CE^E. (EosE 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 L, sections 48 to 57, for 

 typical flowers.) 



Synopsis of tbe 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. I'm 11 us. Flowers perfect. Petals and calyx-lobes 5. Fruit a 



drupe. 



SUBORDER ROSACES. 



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

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



2. Spira a. Carpels mostly 5, forming follicles in fruit. Calyx 5-cIeft, 



short. Petals obovate, similar. 



3. Gillc'uia. Carpels and fruit as in Spiraea. Calyx elongated, 5- 



toothed. Petals slender, dissimilar. 



4. Agrliiio'uia. Carpels 2, forming achenes enclosed in the hardened 



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

 in slender spikes. 



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



tent calyx-tube. Petals none. Stamens 1-4. Calyx-tube inver- 

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

 herbs, with palmately-lobed leaves. 



