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70 MISSOURI .BOTANICAL GARDEN. 
herbarium material. The name Rattlesnake Master is 
applied to this plant. 
+ + Stamens inserted in upper part of tube; leaves usually spotted; 
Texan. 
++ Stigmatic lobes rounded. 
A. VARIEGATA Jacobi.— Leaves lanceolate, green, spotted 
with brown; teeth obscure but sharper than those of A. 
Virginica, and turned upwards; scape 9 to 15 dm. long, 
laxly flowered; flowers 38 mm. long; lobes about equal 
to tube; stamens inserted at two-thirds or three-fourths of 
the distance up the tube, 5 cm. long; anthers 8 mm. long; 
capsule oblong-cuspidate, 15 to 22 mm. long; seeds 
oblique.— Monogr. (1864) 180; Engelm. Trans. St. Louis 
Acad. iii, 303, Collected Writings, 306.— Lower Rio 
Grande, near Mier and Metamoras, Dr. J. Gregg, May, 
1847. 
++ ++ Stigmatic lobes emarginate. 
A. macuLaTA Regel?—Leaves fleshy, recurved, concave or 
channeled throughout their entire length, 15 to 30 cm. 
long, 10 to 20 mm. wide, narrowly lanceolate, tapering to 
apex, light green, glaucous, mostly spotted with dark 
green or brown; margin usually transparent, with evident, 
irregular, small cartilaginous teeth; scape 9 to 20 dm. 
high, the upper 2 or 3 dm. floriferous; bracts ovate to 
linear-lanceolate at base of scape, and more or less den- 
ticulate, the upper ones gradually reduced, entire; flowers 
nearly sessile, purplish-green to white, fragrant, 380 to 50 
mm. long; segments suberect and mostly nearly as long 
as the stamens, or less commonly widely recurving, ob- 
long, 10 to 18 mm. long, 5 mm. wide; filaments inserted 
at base of lobes; anthers 8 to 16 mm. long; stigma vel- 
vety at tip; capsule 20 to 25 mm. long, including stipe 
and beak, a little longer than broad, its walls thicker 
than in A. Virginica.— Ind. Sem. Hort. Petrop. 1856, 16, 
Annot. Bot., Ann. des Sci. Nat. vii. (1856) 74, Gartenflora, 
