80 THE BOOK OF SHRUBS 
genus that are in cultivation are not sufficiently hardy 
to be successfully grown in the open. Thamnocalamus 
falcata and T. Falconeri are the best for growing without 
protection, they are both extremely elegant in growth, 
and quite hardy. The first mentioned has slender stems 
which rise to a height ranging from five to nine feet, 
and bright glaucous leaves from four to six inches in 
length, The second of the two species has graceful 
much branched stems with comparatively small bright 
green leaves. Planted in a sheltered position where 
their roots have access to a liberal amount of moisture, 
they soon reach specimen size and present an extremely 
attractive appearance. 
