68 Rose (Rosacece). [No. 8 



shape to oblong, one inch or less in length, with the 

 stipules usually larger and broader than in the type, and 

 with the stem often only slightly winged. It is found as 

 far south as North Carolina. 



Fig. 36. — Spreading Vetchling. [Z. pratensis, L.\ 

 Flowers, yellow, in few-blossomed clusters. 



Leaflets, one pair, narrow, lance-shape to line-like. Apex, 

 pointed. Stipules, half arrow-shape, half the length, 

 or more, of the leaflets. 



Found, in Massachusetts, New York, and Ontario. 

 A low, straggling vine introduced from Europe. 



No. 8.— Family ROSACEA. (Rose Fam.) 



Flowers, regular. Petals, not united, inserted with the 

 stamens on the edge of a disk that lines the tube of 

 the calyx. Sepals, united toward the base, often ac- 

 companied outside by a row of small leaf-like bracts. 

 Stamens, numerous, inserted as above. Seed-cases, 

 several to many, free from the calyx excepting in 

 Genus Rosa (4) where the many seed-cases are em- 

 bedded in the inner surface of the more or less 

 rounded calyx-tube. 



Leaves, compound, except in Dalib^rda (2), alternate, 

 edges toothed. 



Fruit, seed-like drupes, drupelets, or achenes. 



GUIDE TO GENERA. 



(a) Flowers, white. 



(b) Leaves, compound. Fruit, a collection of fleshy 



drupelets. (1) Rubus (Blackberry. Raspberry). 

 (p) Leaves, simple. Fruit, a collection of nearly dry, 



seed-like drupes. (2) Dalibarda (False Violet). 



