YUCCAS FOR ENGLISH GARDENS. 
I09 
high, with rich green pendent leaves measuring 42 inches in length. 
It has not flowered, and grows close to an evergreen hedge on the top 
of a well-drained southern bank. In a more exposed position it was 
killed to ground level in 19 17. 
The following key to the truly hardy species may be useful : 
Stemless. 
Leaves rigid, marginal threads many and curling. Inflorescence 
glabrous. Y. filamentosa. 
Leaves thin, the outer bending over, marginal threads absent, or 
few and straight. Inflorescence pubescent. Y. flaccida. 
Leaves with thin, brown, horny border. Y. rupicola. 
Forming a Stem. 
Stem short, often prostrate. 
Leaves very long and narrow, grey-green edged with 
distinct white margin and few, fine threads. Inflorescence 
unbranched. - Y. glaaca. 
Stem well developed. 
Leaves rigid, upright, generally concave. Y. gloriosa. 
Leaves flaccid, recurved, nearly flat. Y. recurvi folia. 
