FLOWERING TREES AND SHRUBS 47 



C. Mas argenteo-variegata is another pretty shrub, the 

 leaves being margined with clear white. 



C. NUTTALLI grows to fully 50 feet in height, and is 

 one of the most beautiful of the Oregon and Californian 

 forest trees. The flower bracts are of large size, often 

 6 inches across, the individual bracts being broad and 

 white, and fully 2J inches long. 



C. OFFICINALIS is a Japanese species, that is, however, 

 quite hardy in this country, and nearly resembles the 

 better-known C. Mas, but from which it may at once be 

 known by the tufts of brownish hairs that are present in 

 the axils of the principal leaf veins. 



C. SANGUINEA. Britain. A native shrub that is valued 

 for its colouring of bark, which is of the brightest red, and 

 most effective during the winter season. The flowers are 

 plentifully produced and of a creamy- white colour, while the 

 leaves are ovate and opposite. The pretty black berries 

 are a feature of the shrub in winter. Dampish loam. 



C. STOLONIFERA. Red Osier Dogwood. North America, 

 1741. This has rather inconspicuous flowers, that are 

 succeeded by whitish fruit, and is of greatest value for 

 the ruddy tint of the young shoots. It grows fully 6 feet 

 high, and increases rapidly by underground suckers. This 

 species is quite hardy. 



C. TARTARICA (syn C. siUrica). Siberia, 1824. This has 

 much brighter coloured bark, and is of neater and dwarfer 

 habit, than the typical C. alba. It is a very beautiful and 

 valuable shrub, of which there is a variegated leaved and 

 other varieties. Light, rich, dampish loam suits the 

 Cornus well. 



Corokia (Cornaceae). 



COROKIA COTONEASTBR. New Zealand, 1876. A curious, 

 low, rigid, dwarf-growing shrub, with small, sweet- 

 scented, bright yellow, starry flowers produced in June. 

 The hardiness of the shrub is rather doubtful. 



