THE AGAVES OF LOWER CALIFORNIA. 47 
Missouri Botanical Garden, in whose establishment the spe- 
cies first flowered in cultivation—Map (A). Pl. 19-21. 
Specimens examined: South of San Diego, at the Initial 
Boundary Monument (Hitchcock, 1875,—the type; Palmer, 
1875; Parry). 
Agave Orcuttiana Trelease. 
A. Shawit Brandegee, Proc. Cal. Acad. ii. 2 : 207. 1889. 
Aspect of A. Shawii, but the more or less reclinate leafy trunk as 
much as 3m. long. Leaves smooth, rather green, lance-elliptical, 
somewhat acuminate, 6-10 < 15-30 cm.: spine acicular, flexuous, dull 
gray, 4X 20-25 mm., openly grooved to beyond the middle, long-de- 
current: prickles similarly colored, about 10 mm. apart, usually large, 
sometimes 15 mm. long, variously curved or hooked, narrowly tri- 
angular, obliquely lunately widened into the nearly straight margin. 
Inflorescence paniculate: pedicels about 5 mm. long. Flowers about 
75 mm. long: ovary 35-40 mm. long, subfusiform: tube conical, 12-15 
mm. deep: segments attenuate from a wide base, about 7 < 20 mm., 
one-third longer than the tube and half as long as the ovary: filaments 
inserted about the upper third of the tube, about 50 mm. long and 
more than twice as long as the segments. Capsules?: seeds 68 mm. 
Coast of northwestern Lower California.—Orcuttiana,— 
C. R. Oreutt, an earnest collector and student of the plants 
of California and Lower California.—Map (B). Pl. 22. 
Specimens examined:—San Quintin (Orcutt, April 14, 
1886,—the type). Rosario (Orcutt, Feb., 1883,—a leaf with 
small, close-set prickles). 
AGAVE SEBASTIANA Greene, Bull. Cal. Acad.1:; 214. 1885: 
Pittonia 1: 198, 208. 
-? A. applanata Parryi Purpus, Monatsschr. ‘Kakteenkunde. 9: 36; 
Cactus Journ. 2: 39, 
Habit of A. Shawii. Leaves smooth, glaucous, ovate to lanceolate, 
not very acuminate, openly concave, 6-10 < 15-30 cm., stiffly erect- 
spreading: spine variously conical, nearly straight, graying or dark- 
ening from rather dull red-brown, 5 X 20 to 30 or as much as 50 mm., 
openly grooved to beyond the middle, long-decurrent: prickles sim- 
ilarly colored, at first glossy, usually 10-15 or 20 mm. apart, 3-5 or 
even 10-15 mm. long, usually rather straight, retrorse below, narrowly 
triangular, their more or less lunate or lenticular bases connected by 
the straight or deeply notched horny margin. Inflorescence about 
2m. high, sometimes almost corymbose: scape stout: bracts not imbri- 
