ee, 
THE YUCCEAE. 101 
filiferous. Inflorescence panicled close above the leaves, glabrous. 
Flowers apparently rather small, with tapering style. Fruit baccate, 
large: seeds 9 to 10 & 10 to 12 mm. — Plates 57-59. 
About Nogales, Arizona, on the Santa Cruz river, and in 
the rugged mountains west of that city. Flowering in 
May.— Plate 96, f. 2. 
In the course of his work connected with the original 
survey of the boundary between the United States and 
Mexico, Mr. Arthur Schott collected, in the upper Santa 
Cruz valley, and near the boundary monument in the Sierra 
del Pajarito, a small arborescent Yucca, for which he pro- 
posed the manuscript name Y. brevifolia. His specimens 
were referred to Y. puberula Haw., in 1859, by Dr. Tor- 
rey, who, however, printed Schott’s proposed name as a 
synonym. In 1873 Engelmann, recognizing that they do 
not represent the Y. puberula of Haworth, which is an 
acaulescent plantscarcely differing from typical Y. flaccida, 
proposed for them the name Y. Schotti7, with the remark 
that Mr. Schott ‘* may possibly have mixed the fruit of 
Y. baccata with the foliage of the new plant; but the 
leaves appear so peculiar that there can scarcely be a doubt 
about the distinctness of the species to which they be- 
long.”’ 
The fragmentary specimens collected by Schott, by which 
and his notes and sketches alone his Y. brevifolia appears 
to berepresented in herbaria, consist of a sheet in the Torrey 
herbarium, bearing smooth, stoutly pointed, very thick and 
rigid leaves cut off above the base, about 25 mm. wide, 
plano-convex except toward the pungent apex where they 
are somewhat concave, and with long slender straight mar- 
ginal fibers; panicle fragments, some of which are glabrous 
and others softly tomentose; flowers, the bases of which 
are pubescent, suggesting that they probably belong with 
the pubescent pedicels; and a glabrous branchlet bearing 
an immature fruit which may have been either erect on an 
ascending branch, or, as is more likely, pendent from a 
