ROSE—MEXICAN AND CENTRAL AMERICAN PLANTS. 23 
In 1899 I found bulbs of this same species very common in the market at Guadala- 
jara, and a small quantity were obtained and sent home. One of these flowered in 
April, 1900 (no. 109). 
SPECIES IN CULTIVATION. 
The following species of Manfreda have been reported, under the 
name Agave, as in cultivation, and as having been introduced at the 
dates appended: 
aliberti, 1882. maculosa, 1856?. 
brachystachys, 1820. revoluta, 1840. 
conduplicata, ——. andulata, 1840. 
maculata, 1859, raricgata, 1865, 
maculata minor, 1869. virginica, 1765, 
ARISTOLOCHIACEAE. 
NEW NAME FOR AN ARISTOLOCHIA. 
Aristolochia pringlei Rose, nom. nov. 
Aristolochia longecaudata Wats. Proc. Am. Acad, 22: 447. 1887, not Masters, 1875. 
The writer collected in 1899, about the little town of Tequila, an Aristolochia 
which proved to be A. /ongecaudata Watson, a species only known heretofore from 
the plains near Guadalajara, where it was first obtained by Palmer and afterwards 
by Pringle. Mr. Pringle has recently called my attention to the fact that there is an 
Aristolochia longecaudata of Masters. As the name was not found inthe Kew Index, 
the first impression was that Masters’s name must be later, but it really has a preced- 
ence of some twelve years. 
Specimens examined: 
Jalisco: Near Guadalajara, Dr. FE. Palmer, 1886 (no, 287); same station, C. G. 
Pringle, 1893 (no. 4425); near Tequila, J. N. Rose and Walter Hough, 1899 
(no, 4764). 
PAPAVERACEAE. 
THE MEXICAN SPECIES OF ARGEMONE.’ 
Linneus, in the first edition of the Species Plantarum, assiened three 
species to the genus Argemone. Only one of these, vl. mrentcand, 
remains in the genus as we understand it to-day, and this ix clearly the 
historical type. The genus dates back to Tournefort, who only knew 
one species, that now called A. mericana. 
Hemsley, in the Biologia, assigns five species to Mexico, but two of 
these (A. grandiflora and A, ochrofeuca) he thought were probably 
varieties of A. mexicana. 
Prain, in an exhaustive and scholarly review of the genus, has 
brought together the results of much bibliographical study, but in his 
a Argemone I. Sp. Pl. 1: 508. 1755. 
‘womEGRA A. Nelson, Analyt. Key PL. Rocky Mts, 27. 1902. 
Type species of Argemone, .1. mexicana L.; of Enomegra, .t. ispida Gray. 
