LILY-OF-THE-VALLEY FAMILY 



457 



5. Disporum trachyandrum (Torr.) Britt. Sierra Fairy Bells. Fig. 1121, 



Prosartcs trachyandra Torr. Pacif. R. Rep. 4: 144. 1857. 

 I'rosartcs lanuginosa tracliyaiuiia Baker, Journ. Linn. Soc. 



14: 5S7. 1875. 

 Disponnn traclixaiuinun Britton, Hull. Torrey Club 15: 188. 



1888. 



Minutely and soniewliat rough-pubescent, 3-6 

 dm. high. Leaves ovate to oblong-lanceolate, 3-8 

 cm. long, 15-50 mm. wide, acute or short-acumi- 

 nate, shaUowly cordate at base or the upper not at 

 all cordate ; flowers 1-4 in a cluster, narrowly cam- 

 panulate. creamy-white, often tinged \\'ith green, 

 about 10 mm. long; perianth-segments obianceolate, 

 acute and spreading at ape.x; stamens about two- 

 thirds the length of the segments ; anthers oblong, 

 obtuse, minutely hispid ; style slender, equalling the 

 stamens, entire, glabrous ; ovary glabrous, narrowly 

 oval ; berry broadly ovoid, with a short stout beak, 

 about 8 mm. in diameter, smooth and glabrous, 6- 

 seeded. 



Coniferous forests, Arid Transition Zone; southern Ore- 

 gon, south to Tulare County, in the Sierra Nevada, and to 

 Trinity County in the Coast Ranges. Type locality: "hill- 

 sides, 'Duffield's Ranch, Sierra Nevada," California. 



Disporum parvifolium (S. Wats.) Britton, Bull. Torrey Club 15: 188. 1888. (Prosartes parvijoha 

 Wats Bot Calif. 2: 179. 1880.) Distinguished by its nearly sessile acute anthers, but probably only 

 sterile form of D. oreganum. Similar sterile flowers with short stamens are frequent on normal plants 

 D. hookeri. It was originally collected by Rattan in the "Siskiyou Mountains between Happy Camp a 

 Waldo," Oregon. 



S. 



a 



of 



nd 



8. STREPTOPUS xAIichx. Fl. Bor. Am. 1 : 200. 1803. 



Glabrous or sparingly pubescent branching herbs, with stout or slender rootstocks. Leaves 

 alternate, sessile or clasping, thin, many-nerved. Flowers small, somewhat campanulate, 

 solitary or 2 together, e.xtra-axillary. slender-peduncled. Peduncles bent or twisted at 

 about the middle. Perianth-segments 6. separate, recurved or spreading, deciduous, the outer 

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

 extrorse. Ovarv 3-celled, sessile; slender, 3-cleft, 3-lobed or entire; ovules numerous, in 

 2 rows in each cavity. Berry globose or oval, red, many-seeded. [Greek, meaning twisted- 

 stalk, in reference to the bent or twisted peduncle.] 



About 5 species, natives of the north temperate zone. The following and the type are the only North 

 American species. Type species, Streptopus roseiis Michx. 



Stems branched; pedicels geniculate; berry white. 1. ^,- ample.riloltiis. 



Stems simple; pedicels not geniculate; berry red. 2. 6. curvipcs. 



1. Streptopus amplexifolius (L.) DC. 

 Clasping-leaved Twisted-stalk. Fig. 1122. 



Uriilaria amplexifolia L. Sp. PI. 304. 1753. 

 Streptopus amplcxifolius DC. Fl. France 3: 174. 1805. 



Rootstock short, stout, horizontal, covered 

 with thick tibrous roots. Stem usually branch- 

 ing below the middle, 4-10 dm. high, glabrous. 

 Leaves ovate to lanceolate, 5-15 cm. long, 2.5-5 

 cm. wide, acuminate at apex, cordate clasping 

 at base, glabrous, glaucous beneath ; peduncles 

 25-50 mm. long, 1-2-flowered ; flowers 8-12 

 mm. long, greenish white; perianth-segments 

 narrowly lanceolate, acuminate, widely spread- 

 ing or recurved above: anthers subulate- 

 pointed: stigma entire, obtuse or truncate; 

 berrv oval, 10-18 mm. long. 



In moist woods^ Transition Zone; Alaska and Lab- 

 rador, south to Pennsylvania. Arizona, and Mendocino 

 County, California, also in Europe and Asia. Tyi>e 

 locality: Europe. 



