TRILLIACEAE 275 



2. NOLINA Michx. 



Coarse herbs, with woody caudices. Leaves crowded on the caudex : blades rigid, 

 narrow, elongated, curved, entire or serrulate, keeled. Flowering stems often widely 

 branching. Flowers polygamo-dioecious, in open panicles. Perianth white, withering, 

 persistent : sepals and petals distinct, 1 -nerved. Stamens 6, reduced to staminodia in the 

 pistillate flowers : filaments thickish, shorter than the perianth. Ovary 3-celled, abortive 

 in staminate flowers : style obsolete or very short during anthesis. Ovules 2 in each cavity, 

 erect. Capsule dry, 3-winged, tardily and irregularly opening. Seeds often solitary, 

 thick. 



Capsules fully as long as broad, not notched at the ends, or barely so at the apex. 1. N. Georgiana. 

 Capsules manifestly broader than long, notched at the ends. 



Capsules 10 mm. broad : perianth about 10 mm. broad : Floridian species. 2. N. Brittoniana. 



Capsules 5 mm. broad : perianth 4-5 mm. broad : Texano-New Mexican species. 3. N. Lindheimeriana. 



1. Nolina Georgiana Michx. Flowering stem scape-like, 5-15 dm. tall : leaves 

 numerous ; blades linear, rigid, 2-7 dm. long, widely spreading, those of the flowering 

 stem much reduced, nearly erect : panicle more or less elongated, rather loosely flowered : 

 perianth 4-5 mm. broad : sepals and petals oblong to oblong-lanceolate : capsules suborbic- 

 ular or obovoid-orbicular, 6-8 mm. long, 3-winged, barely notched at the apex. 



In dry pine lands, South Carolina, Georgia and Florida. Spring. 



2. Nolina Brittoniana Nash. Flowering stem 10-20 dm. tall : leaves 40-70, form- 

 ing a dense mat about the base of the plant ; blades linear, strap-like, recurved and pros- 

 trate, 1-2 m. long, scabrous-margined, attenuate to a slender apex : panicle oblong or ovoid 

 in outline : perianth nearly 10 mm. broad : sepals and petals elliptic or elliptic-obovate, 

 glandular at the apex : capsules broader than high, 10 mm. broad, on recurved pedicels, 

 notched at the base and the apex. 



In dry pine lands, Florida. Spring. 



3. Nolina Lindheimeriana (Scheele) S. Wats. Flowering stem 10-18 dm. tall, often 

 proliferously branched : leaves numerous, narrowly linear, 3-9 dm. or 15 dm. long, thin- 

 nish, serrulate, more or less strongly concave : perianth 4-5 mm. broad : sepals and petals 

 oblong-lanceolate, obtusish : capsules 5 mm. broad, much broader than long, notched at 

 both ends. 



In stony places, Texas and New Mexico. Spring. 



3. DASYLIRION Zucc. 



Coarse herbs, with woody caudices. Leaves numerous, crowded on the caudex : blades 

 narrow and elongated, rigid, spiny-margined. Flowering stems narrowly branched above. 

 Flowers dioecious, in close narrow panicles. Perianth white, 'withering-persistent : sepals 

 and petals distinct. Stamens 6, reduced to staminodia in pistillate flowers : filaments 

 thickish, longer than the sepals and petals. Ovary 1-celled : stigmas 3. Ovules 3, erect. 

 Fruit dry-leathery, 3-winged, indehiscent or nearly so. Seed solitary. 



1. Dasylirion Texanum Scheele. Caudex 1-4 dm. long, densely leafy : flowering 

 stem 20-35 dm. tall : leaves spreading ; blades linear, 5-12 cm. long, attenuate, armed 

 with hooked spines and denticulate between them : panicle narrow, 5-9 dm. long, con- 

 spicuously bracted : bracts ovate or ovate-lanceolate, acuminate, membranous, often sur- 

 passing the branches of the panicle during anthesis : perianth 2 mm. long ; sepals ovate, 

 often toothed ; petals narrower, more nearly entire : capsules oval or ellptic, 6-7 mm. 

 long. 



In stony soil or on prairies, Texas. Spring and summer. 



FAMILY 7. TRILLIACEAE Lindl. TRILLIUM FAMILY. 



Perennial caulescent or scapose herbs, with rootstocks, and rather fleshy tis- 

 sues. Leaves in a whorl about the middle of the stem, or basal and wanting on 

 the mature plant. Bracts in a whorl subtending the inflorescence at the top of 

 the peduncle or scape, usually leaf-like. Flowers perfect, solitary, or in terminal 

 umbel-like clusters. Perianth of 3 distinct sepals and 3 petals. Androecium of 

 6 short stamens. Anthers 2-celled. Gynoecium of 3 united carpels. Ovary 

 3-celled. Stigmas 3. Ovules several in each cavity. Fruit a 3-celled, 3-lobed 

 or 3-angled berry. 



