MISSOURI BOTANICAL GARDEN. 
Series II. Carnoso-coriaceae. 
Group 8. Geminiflorae. 
9. Aloideae. 
11. Attenuatae. 
Series IH. Flexiles. 
Group 12. Viviparae. 
13. Yuccaefoliae. 
SYNOPSIS OF UNITED STATES SPECIES. 
♦ Acaulescent; perennial, from stout, evident, sometimes elongated root- 
stocks; roots fleshy; leaves loosely spreading or ascending, soft, 
thin, annual, without homy spines ; flowers normally subspicate and 
solitary; stigmatic lobes spreading.— Manfrbda (Salisb.). Herba- 
ceae (Baker); Singulijlorae (Engelm.). 
+- Stamens inserted near base of tube; leaves usually green. 
A. VirginicaL. — Leaves sixto fifteo' . -r-"-^-.. - - iimcs 
marked with purple striae, very rariA , ■ 
long, 2 to 5 cm. wide, lanceolate to ol n- 
cave, a little flexuous ; apex endins: 
herbaceous point ; niurfrin irregularl} : 
scape slender, 9 to 18 dm. Ion»r, ups re 
floriferous ; lowest bract.? almost as . . r 
ones much naiTOwer and shorter: di- 
celled, groenish or brownish yellow, very fr;i::r.aji. 2:> lo 37 
mm. long; ovary oblong; tube narrowly f unnel-!?haped ; 
segments linear-oblong, 10 to 12 mm. long; filaments 
much thickened upwards, and extending 20 to 25 mm. be- 
yond segments; anthers 12 mm. long; capsule globose, 15 
to 20 mm. long, including short stipe and beak, and 
nearly as wide; seeds 4 to 6 mm. in longest diam- 
eter.— Sp. Pi. (1753) 3-23; Jacobi, Monogr. (18H4) 
174; Engelm. Tran.>. St. Louis Acad. iii. (1875) 301, 
Collected Writing.s. 306 ; Terr. Monogr. ( 1885) 13 ; Baker, 
Handbook of the AmarvUideae, ( 1888) 197.— Iconch: 
B..t. Mag. ^ta-. 1, xxix, pi. 1157; J;u-Muia, Icones Plant- 
