432 



CONVALLARIACEAE. 



Rough-fruited Disporum. 



2. Disporum trachycarpum (S. Wats.) B. & H. 



(Fig. 1036.) 



Prosartes trachycarpa S. Wats. Bot. King's 



Exp. 344. 1871. 

 Disporum trachycarpum B. & H. Gen. PI. 3: 



832. 1883. 



Puberulent, at least when young, i-2 & 

 high. Leaves ovate, oval or oblong- lanceo- 

 late, i^ / -3>^ / long, i'-2%' wide, acute or 

 short-acuminate at the apex, rounded or 

 subcordateat the base, 5-n-nerved; flowers 

 solitary or 2-3 together, yellowish-white, 

 4 // -y' / long; pedicels % f -i' long; perianth 

 narrowly campanulate, its segments nar- 

 rowly oblong or oblanceolate, acute, little 

 spreading, about equalling the stamens, 

 ovary depressed-globose; style slender, 

 about equalling the stamens, 3-lobed; berry 

 roughened, depressed-globose or somewhat 

 obovoid, 4 // -5 // in diameter, apparently 

 leathery rather than pulpy, 4-iS-seeded. 



Manitoba and the Northwest Territory to 

 South Dakota, Nebraska, Washington and Ari- 

 zona. May-Aug. 



6. STREPTOPUS Michx. Fl. Bor. Am. i: 200. 1803. 



Branching herbs, with stout or slender rootstocks, thin sessile or clasping alternate 

 many-nerved leaves, the flowers solitary or 2 together, extra-axillary, slender-peduncled, 

 greenish or purplish, small, nodding. Peduncles bent or twisted at about the middle. 

 Perianth somewhat campanulate, its 6 separate segments recurved or spreading, deciduous, 

 the outer flat, the inner keeled. Stamens 6, hypogynous; filaments short, flattened; anthers 

 sagittate, extrorse. Ovary 3-celled; ovules numerous in 2 rows in each cavity; style slender, 

 3-cleft, 3-lobed or entire. Berry globose or oval, red, many-seeded. [Greek, twisted-stalk, 

 in reference to the bent or twisted peduncles.] 



About 5 species, natives of the north temperate zone. Besides the following, another occurs 

 on the Pacific Coast. 



Leaves glaucous beneath, clasping; flowers greenish-white. 

 Leaves green on both sides, sessile; flowers purple or rose. 



i. Streptopus amplexifolius (L.) 

 DC. Clasping-leaved Twisted- 

 stalk. (Fig. 1037.) 



Uvularia amplexifolia L. Sp. PI. 304. 1753. 



Streptopus amplexifolius DC. Fl. France, 3: 

 174. 1805. 



Rootstock short, stout, horizontal, covered 

 with thick fibrous roots. Plant iX-3 

 high; stem glabrous, usually branching be- 

 low the middle, leaves 2 / -5 / long, i / -2 / wide, 

 acuminate at the apex, cordate-clasping at 

 the base, glabrous, glaucous beneath; pe- 

 duncles i / -2 / long, i-2-flowered; flowers 

 greenish white, 4 // -6 // long; perianth-seg- 

 ments narrowly lanceolate, acuminate; an- 

 thers subulate-pointed; stigma simple, ob- 

 tuse or truncate; berry oval, $"-$>" long. 



In moist woods, Labrador to Alaska, south to 

 North Carolina, Ohio, Michigan and New Mex- 

 ico. Ascends to 4000 ft. in the Adirondacks. 

 May-July. 



1. 5. amplexifolius* 



2. S 1 . roseus. 



