AGAVE EXPATRIATA AND OTHER AGAVES FLOWERING IN THE 
WASHINGTON BOTANIC GARDEN IN 1898.* 
BY J. N. ROSE. 
In the ninth Annual Report f I described the five species 
which flowered in the Botanical Garden at Washington in 
1897. During the year 1898 six species flowered, one of 
which, however, was A. Washingtonensis, the same indi- 
vidual that flowered in 1897, while another was a second 
specimen of A, attenuata. Since both of these show some 
peculiarities they are here discussed at some length. An- 
other species which I call tentatively A. heteracantha, but 
which will doubtless prove distinct, is described briefly with 
the hope that it may lead to a clearing up of the confusion 
which surrounds the heteracantha group. A fourth species 
proves to be undescribed. As in the case of A. Washing- 
tonensis, nothing is known of its previous history except 
that it has long been in cultivation here. Two species of 
the herbaceous type, A. Virginica and A. maculosa, have 
also flowered. Of the latter species seven specimens have 
flowered for us and these show much variation. These two 
species, which are believed to belong to a different generic 
type, will not be discussed in this place, as I propose to 
treat them elsewhere at an early day. 
AGAVE ATTENUATA. 
A specimen of Agave attenuata began to send up its 
spike about November 1, 1898. On November 5, the 
spike measured 2 feet,4 inches; November 10, 3 feet, 4 
* Published with the approval of the Secretary of the Smithsonian 
Institution. 
+ Rept. Mo. Bot. Gard. 93 121-6. pl. 29-31. 
Separates issued June 3, 1899. 
