6-1- COM-vrON CA^JADIAN WILD PLANTS. 



17. Ainclaii't'liicr. Pome berry -like, 10-celled, i.e., with twice as many 

 cells as styles, l^ctp Is narrow'. Otherwise as in Pyrus. Shrul)3 

 or small trees, 7iot thorny. 



1. ritllNlIS, Tourn. Plbm. Chekhy. 



1. P. Ameriea'na, Marshall. (Wild Plum.) A thorny- 

 tree 8-10 feet high, with orange or red drupes half an inch 

 or more in diameter ; and ovate, 'conspicuously pointed, 

 coarsely or douhly serrate, veiny leaves. Flowers white, 

 appearing before the leaves, in umbel-like lateral clusters. 

 — Woods and river-banks. 



2. P. pu'mila, L. (DwARi? Cherry.) A small trailing 

 shrub, 6-^18 inches high. Leaves obovate-lanceolate, tapering 

 to the base, toothed near the apex, pale beneath. Flowers in 

 umbels of 2-4, appearing with the leaves. Fruit ovoid, 

 dark red, as large as a, good-sized pea. — Crevices of rocks, 

 and sand-beaches and plains. 



3. P. Pennsylvan'iea, L. (Wild Eed Cherry.) A tree 

 2il-30 feet high, or shrubby. Leaves oblong -lanceolate, 

 sharply serrate, green both sides. Flowers (appearing with- , 

 the leaves) in large clusters, the pedicels elongated. Frilit 

 globular, as large as a red currant, very sour. — Rocky 

 thickets, and in old windfalls. 



4. P. ViFginia'na, L. (Choke-Cheery.) A good-sized 

 shrub, 3-10 feet high. Leaves oval, oblong, or obovate, finely 

 and sharply serrate, abruptly pointed. Flowers in short 

 erect racemes, appearing after the leaves. Fruit red,'beoom- 

 ing darker, very astringent. — Woods and thickets. 



5. P. sero'tina, Ehrhart. (Wild Black Cherry.) A 

 large ti-ee, with reddish-brown branches. Leaves smooth, 

 varying from oval to ovate-lanceolate, taper-pointed, serrate, 

 with short and blunt incurved teeth, shining above. Flowers 

 in long racemes. Frait purplishjDlack, edible. — Woods and 

 thickets. 



8. SPIRJ!'A, L. Mkadow-Sweet. 



1. S. opulifo'lia, L. {Physocarpus opulif alius, Maxim.) 

 (NiNE-EARK.) Shrub 3-7 feet high, the old bark separating 



