64 COMMON CANADIAN WILD PLANTS. 



17. Amelan' Ciller. Pome berry-like, lO-celled, i.e., with twlee as many 

 - cells as styles. Petals narrow. Otherwise as in Pyrus. Shrubs 

 or small trees, not thorny. 



1. PKUNES, Tourn. Pldm. Cherey. 



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

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

 or more in diameter ; and ovate, conspicuously pointed, 

 coarsely or doubly serrate, veiny leaves. Flowers "white, 

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

 — Woods andriver-banks. 



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

 shrub, 6-18 inches high. Leaves ohovate-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 

 20-30 feet high, or shrubby. Leaves oblong -lanceolate, 

 sharply serrate, green both sides. Flowers (appearing with 

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

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

 thickets, and in old windfalls. 



4. P. Virginia'na, L. (Choke-Cherry.) A good-sized 

 shrub, 8-10 feet high. Leaves oval, oblong, or obovate, finely 

 and sharply serrate, abruptly pointed. Flowers in short 

 erect racemes, appearing after the leaves. Fruit red, becom- 

 ing darker, very astringent. — Woods and thickets. 



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

 large tree, 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 purplish-bla,ck, edible. — Woods and 

 thickets. 



2. SPIK^'A, L. Meadow-Sweet. 



1. S. Opulifo'lia, L. {Physocarpus opulifolius, Maxim.) 

 (NiNB-BARK.) Shrub 3-7 feet high, the old bark separating 



