(Na er ep ee ee 
a5 
THE YUCCEAE. 35 
Botanical Garden, and continued to flower until well into 
the fall. The first flowers which opened, though shorter 
than those of the San Antonio plant referred to H. parvi- 
flora, and consequently broader relatively to their length, 
possessed the conspicuously exserted white style and short 
anthers (scarcely over 2 mm. long) of that species. After 
the first few flowers, those which opened were relatively 
much broader, because of a considerable actual shortening, 
so that the expression bell-shaped, which has been used for 
H. Engelmanni, might be applied to them, and the style 
was not exserted, merely reaching to the mouth of the 
perianth, and, in fact, was slightly shorter than the 
stamens. Except for having their anthers a very little 
shorter, these flowers are the counterpart of a well-pre- 
served specimen of the original of H. Hngelmanni sent to 
Dr. Engelmann by Lindheimer in 1878, though the included 
style of the latter is a little longer than the stamens. Still 
later flowers of the same plant, while preserving the short 
broad form, again had the style a little exserted (Plate 2). 
As in typical H. parviflora, the leaves, which are deeply 
concave and with free marginal fibers, differ in width, as 
indeed, is usual in the genus Yucca, and the inflorescence, 
which in vigorous plants has a few spreading branches, 
may sometimes be simple, in either case the fascicled 
flowers continuing to develop in succession for many 
months, and varying from deep rosy-red, when well lighted, 
to a salmon-color, when shaded from strong light. 
For the present, this short-flowered plant, with the style 
included or very slightly exserted, and which seems to come 
from a point a little north of but very close to the known 
range of H. parviflora, appears to be varietally separable 
from the latter in these characters, and should bear the 
name Engelmanni given to it as a specific name by Kraus- 
kopf. 
