LILY FAMILY. 
2. Yucca glatca Nutt. Bear-grass. 
(Fig. 1026.) 
Yucca glauca Nutt. Fraser’s Cat. 1813. 
Yucca angustifolia Pursh, Fl. Am. Sept. 227. 1814. 
Caudex very short, the leaves all basal, nar- 
rowly linear, smooth, very stiff, sharp-pointed, 
1°-3° long, 2’’-5’’ wide, with a broader base, 
concave, at least when dry, the marginal fibres 
filiform, usually numerous; scape short; flowers 
134/-3/ broad, racemose or in a little-branched 
panicle 1°-4° long; perianth-segments ovate, 1/- 
14’ long; style short; stigmas shorter than the 
ovary; pedicels stout, erect and 1/-114’ long in 
fruit; capsule oblong, 2/—3/ long, about 1’ thick, 
6-sided; seeds very flat, about 1%’ broad. 
In dry soil, Iowa and South Dakotato Wyoming, 
south to Missouri, Texas and Arizona. May-June. 
3. Yucca filamentosa I, Adam’s Needle. 
(Fig. 1027.) 
Yucca filamentosa \,. Sp. Pl. 319. 1753. 
Caudex very short, or sometimes 1° high. J,eaves 
lanceolate, narrowed above the broad base, acumi- 
nate and sharp-pointed, flat, roughish, 1°-2%° long, 
9/’-2’ wide; scape 2°-10° high; panicle large, its 
branches divergent or ascending, the lower often 1° 
long or more; flowers numerous; perianth-segments 
1%/-2/’ long, ovate; stigmas slender, but shorter 
than the ovary; pedicels rarely more than 14’ long; 
capsule oblong, 114’—2/ long, about 10’ thick. 
In sandy soil, Maryland to Florida, Tennessee and 
Louisiana. Much cultivated for ornament. Escaped 
from gardens in southern Pennsylvania. May-July. 
Family 20. CONVALLARIACEAE Link. Handb. 1: 184. 18209. 
LILY-OF-THE-VALLEY FAMILY. 
Scapose or leafy-stemmed: herbs, with simple or branched rootstocks, never 
with bulbs or corms. Flowers solitary, racemose, panicled or umbelled, regular 
and perfect. Leaves broad, parallel-veined and sometimes with cross-veinlets, 
alternate, verticillate or basal, or in 4sparvagus and its allies reduced to scales 
bearing filiform or flattened branchlets in their axils. Perianth inferior 4-6- 
parted with separate segments, or oblong, cylindric or urn-shaped and 6-lobed 
or 6-toothed. Stamens 6, hypogynous or borne on the perianth; anthers in- 
trorsely, extrorsely or laterally dehiscent. Ovary 2~-3-celled, superior; ovules 
anatropous or amphitropous; style slender or short; stigma mostly 3-lobed. 
Fruit a fleshy berry. Seeds few or numerous. Embryosmall. Endosperm copious. 
About 23 genera and 215 species, widely distributed. 
Leaves reduced to scales; leaf-like branchlets filiform. 1. Asparagus. 
Leaves broad; stems simple or somewhat branched. 
Leaves alternate or basal. 
Leaves basal; flowers umbelled or solitary. 
Leaves alternate (solitary in flowerless plants of no. 4). 
Perianth-segments separate. 
Flowers racemed, umbelled, panicled or solitary, terminal. 
Flowers racemed or panicled. 
Perianth-segments 6. 
Perianth-segments 4. 
Flowers umbelled or solitary. 
Flowers solitary or two together, axillary. 
Perianth cylindric or oblong, 6-toothed. 
Leaves nearly basal; flowers racemed; perianth 6-toothed. 
. Clintonia. 
bo 
Vagnera. 
Unifolium. 
Disporum. 
Streplopus. 
Polygonatum. 
, Convallarta. 
