270 CONVALLARIACEAE 



flated : berries subglobose, 4-6 mm. in diameter, red and spotted with purple, aromatic. 

 In woods and on banks, Nova Scotia to British Columbia, south to Georgia, Missouri and Arizona. 

 Spring and summer. 



2. Vagnera australis Rydb. Similar to V. racemosa in habit, but more slender. 

 Leaf-blades relatively narrower, markedly acuminate, prominently 3-nerved, the other 

 lateral nerves less prominent : panicles loosely flowered, the branches glabrous : perianth 

 white, about 3 mm. broad : sepals and petals narrowly linear : filaments twice as long as 

 the sepals and petals, flat. 



In woods or on hillsides, Georgia and Alabama. Spring. 



4. UNIFOLIUM Adans. 



Caulescent herbs, with slender rootstocks. Leaves few : blades thickish, several- 

 nerved. Flowers in terminal racemes. Perianth white : sepals and petals 4, distinct, 

 spreading. Stamens 4, hypogynous : filaments filiform, or slightly flattened : anthers ver- 

 satile, introrse. Ovary sessile or nearly so, 2-celled : stigmas 2. Ovules 2 in each cavity. 

 Berry subglobose, pulpy. Seeds 1-2. Embryo shorter than the horny endosperm. 

 [Maianthemum Wigg.] 



1. Unifolium Canad6nse (Desf. ) Greene. Foliage finely pubescent or glabrous. 

 Steins erect, 5-15 cm. tall, commonly zigzag : leaves 2 or commonly 3 ; blades ovate to 

 lanceolate, 2-8 cm. long, acute or somewhat acuminate, usually truncate or subcordatc ;it 

 the base, sessile or short-petioled : racemes 2-5 cm. long, not dense : pedicels 2-8 mm. 

 long : perianth white, about 5 mm. broad : sepals and petals oblong or oblong-lanceolate, 

 acute: berries subglobose, 4 mm. in diameter, pale, red-speckled. [Smilacina bifnlia 

 Chapm., not Ker.] 



In damp woods and thickets, Newfoundland to the Northwest Territory, North Carolina and South 

 Dakota. Spring and summer. TWO-LEAVED SOLOMON'S SEAL. 



5. STREPTOFUS Michx. 



Caulescent herbs, with horizontal rootstocks. Leaf-blades thinnish, sessile or clasp- 

 ing. Flowers solitary, or 2 together, nodding from extra-axillary peduncles. Perianth 

 greenish or purplish : sepals and petals 3 each, separate, with spreading or recurved tips, 

 the petals keeled. Stamens 6, hypogynous : filaments flattened, very short : anthers sagit- 

 tate, opening nearly laterally. Ovary 3-celled : stigma entire or 3-lobed. Ovules in two 

 rows in each cavity. Berry red, oval or subglobose. Seeds numerous. 

 Leaf-blades green, sessile : perianth rose or purple : anthers 2-pointed. 1. S. roseus. 



Leaf-blades glaucous beneath, clasping : perianth greenish white : anthers 1-pointed. 2. 5. ampler! J<>1 in*. 



1. Streptopus roseus Michx. Foliage pubescent. Kootstocks stout, with numerous 

 roots : stems 3-9 dm. tall, forking, somewhat pubescent above : leaf-blades oblong to oblong- 

 ovate or ovate, 5-12 cm. long, acuminate, ciliolate, many-nerved, sessile: peduncles 1-2.5 

 cm. long, pubescent, usually 1 -flowered : perianth rose or purple, 8-12 mm. long: sepal- 

 and petals narrowly lanceolate, acuminate, the tips more or less strongly recurved : anthers 

 2-horned : stigmas 3 : berries globose or oval-globose, 10-12 mm. long. 



In deep woods, Labrador and Alaska to the mountains of Georgia, Michigan and Oregon. Spring 

 and summer. 



2. Streptopus amplexifolius (L. ) DC. Foliage glaucous. Rootstocks horizontal, 

 with numerous roots : stems 3-12 dm. tall, forking, usually from below the middle, glabrous 

 or nearly so : leaf-blades oblong to oblong-lanceolate or ovate-lanceolate, 5-12 cm. long, 

 acuminate, thin, becoming green above, clasping, pale beneath : peduncles curved, 2-5 cm. 

 long, 1-2-flowered : pedicels much shorter than the peduncles : perianth greenish white, 

 10-12 mm. long : sepals and petals' narrowly lanceolate, acuminate, more or less recurved : 

 anthers subulate-tipped : stigma entire, slightly dilated : berries oval, 10-15 mm. long. 



In woods, Labrador and Alaska, to the mountains of North Carolina, Ohio and New Mexico. 

 Spring and summer. 



6. DISPORUM Salisb. 



Caulescent herbs, with elongated rootstocks and pubescent foliage. Leaf-blades thin- 

 nish, sessile or clasping, somewhat inequilateral. Flowers solitary or in terminal simple 

 clusters, drooping. Perianth whitish or greenish yellow : sepals and petals 3 each, nar- 

 row, distinct,, deciduous. Stamens 6, hypogynous : filaments filiform, or somewhat flat- 

 tened : anthers narrow, extrorse, shorter than the filaments. Ovary 3-celled : stigma 



