100 SELECTED WESTERN FLORA 



2. L. macrocarpum, Nutt. 



Closely resembling the preceding, but often higher; root never swollen; 

 umbel 3-10-rayed; flowers always white. Dry plains, Sask. and Alta. 



3. L. foeniculaceum, (Nutt.) Raf. 



Peduncles 4—12 in. high ; the whole plant finely and densely villous when 

 young; leaves finely dissected, the primary divisions almost always in S's; 

 umbel of 5-15 rays; flowers yellow, the ovaries densely pubescent. Dry 

 plains, local, Man.-Alta. 



LXIII. CORNACEjE (Dogwood Family)., 



Shrubs or trees with simple entire leaves and regular flowers in 

 cymes or heads. Calyx tube adhering to the ovary, teeth 4 or 5 

 or none; petals 4 or 5 or wanting; stamens as many as the petals 

 or more, inserted with the petals on a disk on top of the ovary; 

 ovary 1 or2-celled; style 1; ovules 1 in each cell; fruit a drupe with 

 a 1 or 2-celled stone. 



1. CORNUS. Dogwood. 



Calyx tube bell-shaped, minutely 4-toothed; petals 4; stamens 4; 

 ovary 2-ceIled; drupe globular with a 2-celled stone. Shrubs with 

 opposite or whorled entire leaves, and small white or greenish 

 flowers in cymes, or in heads surrounded by a corolla-like involucre. 



1. C. canadensis, L. Bunchbebry. 



Stem simple, low. 4-8 in. high, from a slender rootstock; leaves sessile or 

 almost so, the lower scale-like, the upper large, in a sort of whorl; fiowers> 

 small, greenish white, in a terminal head surrounded by an involucre of white i 

 petal-like bracts; fruit deep red. Comtaon in cool woods, Man.-Alta. 



2. C. stolonifera, Michx. Red-osieh Dogwood. 



A shrub 2-12 ft. high, the twigs bright red or reddish, only the youngest 

 at all pubescent. Leaves opposite, petioled, ovate, acute, often pubescent 

 with fine appressed hairs, whitish beneath; flowers white, in cymes; fruit 

 white, berry-like. Common in wet places, particularly along streams, 

 Man.-Alta. 



LXIV. ERICACE:^ (Heath Family). 



Shrubs or woody herbs with regular perfect flowers and simple ex- 

 stipulate leaves. Calyx free from the ovary, mostly 4 or 5-parted; 

 corolla 4 or 5-parted, or lobed; stamens as many or twice as many as 



