AGAVES OF THE UNITED STATES. 97 
has now become even more striking in all points save in 
rapiditj of growth; these joung specimens having in a 
single year nearly reached the size of the older plants, 
which have scarcely grown at all. These older plants 
were raised from seed sent to the Garden several years 
ago. Mr. Gurney says that they are the same as plants 
called A. albicans by Dr. Engelraann, but that species be- 
longs to the Littaea section. The plants in question seem 
to correspond better with those from Florida than to the 
descriptions given of either A. miradorensis or A. albicans. 
A. sp. — A fragment of a leaf sent by Dr. B. D. Ten 
Eyck from Eagle Pass, Texas, Feb. 7, 1895, still remains 
unidentified. 
The leaf is dark green, with a smooth shining surface, 
about 25 dm. long, 12 to 20 cm. wide, tapering to the apex, 
with a slight compression at the tip, giving an acuminate 
aspect, 3.5 mm. thick, soft, flexible, with few fibers; end- 
spine 4 cm. long, reddish-brown, slightly channeled on 
upper side for about half the length, and decurrent for a 
short distance; margin entire. 
Dr. Ten Eyck states that this plant, which is probably a 
Mexican species, is found spontaneous on the northern side 
of the Rio Grande in the vicinity of Eagle Pass. I have 
been unable to learn anything in regard to its inflorescence. 
Dr. Ten Eyck thinks that its occurrence may possibly 
have been caused by seeds carried to the spot from culti- 
vated plants. He looked for fruit without result. 
EXPLANATION OF PLATES ILLUSTRATING AGAVES. 
The line drawings have been made by Miss Grace E. 
Johnson under the supervision of the author, from herbar- 
ium material or from living plants. The half-tones are 
from photographs of plants under cultivation or in their 
native habitats. 
Plate 30 is taken from Dr. Trelease's plate (No. 32), 
in the Fifth Report of the Garden. Plates 44 and 47 are 
