1104 ARBORETUM ET FRUTICETUM BRITANNICUM. 
to the stalk. On the sides of the leaves are long threads, which hang down, 
it is perfectly hardy. 
2070. Y. filamentdsa. 2071. Y. (f.) angustifélia. 
a 8, Y. (F.) ancustTiroLia Pursh. The narrow-leaved Yucca. 
Identification. Pursh Fl. Amer. Sept., 1. p. 227.; Nuttall Gen. Pl, Amer., 1. p. 218. 
Engravings. Bot. Mag., t. 2236. ; and our fig. 2071. 
Spec. Char., §c. Without a stem. Leaves long-linear, rigid; margin slightly 
filamentose. Capsules large, obovate-cylindrical. (Pursh.) A low ever- 
green shrub, with the habit of a herbaceous plant. Banks of the Missouri 
River. Height of the leaves 6 in. to 12in.; of the stem 3 ft. to 5 ft. Introd. 
1811. Flowers greenish white, without any tinge of purple; September. 
This species has been sometimes confounded with Y. stricta ; but the leaves 
are uarrower and more recurved, and the threads on the margin much longer. 
The whole plant is ofhumbler growth ; the flower stem is not branched, and 
the flowers are more oblong than round. 
# 9, Y.rua’ccipa Haw. The flaccid-leaved Yucca. 
Identification. Haw. Supp., p. 35.; Lindl, in Bot. Reg., vol. xxii., under Y. dracduis. 
Engravings. Bot. Reg. ; and our jig. 2072. 
Spec. Char., §c. Leaves all very flaccid, weak, 
bent below the middle and recurved, very 
long and lanceolate, flat, concave and mu- 
cronulate at the apex, roughish; marginal 
filaments strong, yellowish. (Haworth.) A 
low evergreen shrub. Georgia. Height of 
the leaves 1 ft. to 2ft.; of the flower stems 
3 ft. to 5ft. Introduced in 1816. Flowers 
pale yellow; July. 
A pretty and apparently distinct species, well 
marked by its thread-edged 
scabrous leaves and_ pale 
2072». Wafidecta: yellowish white flowers. 
# 10, Y. eLauce’scens Haw. The glaucescent Yucca. 
Identification. Haw. Supp. Pl. Suc., p.35. 
Engravings. Brit. Flow.-Gard., t. 53. ; and our fig. 2073. 
Spec. Char., §c. Leaves linear-lanceolate, entire, concave, 
glaucescent, straight ; margin slightly filamentose. (Sw2.) 4 
An evergreen stemless plant. North America. Height 
of the flower-stems 3 ft. to 5 ft. Introd. 1819. Flowers 
greenish white, tinged with yellow; Aug. and September. 
_Leaves very stiff, concave, ofa dull glaucous colour, ter- 
minating in a sharp horny spine; margin entire, with here 
and there a slender white thread, slightly twisted. It has 
the habit of Y. filamentésa, with larger and more numerous 
blossoms, and more elegant sharp-pointed foliage. 2075. Y. glaueéscens. 
