270 CONVALLARIACEAE 



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

 In woods and on l>anks, Nova Scotia to British Columbia, south to Georgia, Missouri and Arizona. 

 Spring and summer. 



2. Vagnera australis Rydb. Similar to V. rucemosa 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 jjetals, 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, pnlpy. Seeds 1-2. Embryo shorter than the horny endosperm. 

 [Maianthemvm Wigg. ] 



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

 Stems 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 subcordate at 

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

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

 acute: berries subglobose, 4 mm. in diameter, pale, red-speckled. \_Smiladna bifolia 

 Chapra., 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. STREPTOPUS Miclix. 



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. roscus. 



Leaf-blades glaucous beneath, clasping : perianth greenish white : anthers 1-pointed. 2. S. amplexifolius. 



1. Streptopus roseus Michx. Foliage pubescent. Rootstocks stout, witli 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'l-floM'ered : perianth rose or purple, 8-12 mm. long : sepals 

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

 2-horned : stigmasS: berriesgloboseoroval-globo.se, 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 : periantli 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 



