1922] 



PAYSON — STUDY OF THELYPODIUM AND ITS IMMEDIATE ALLIES 271 



culty and confusion for so many years seem to have been applied 

 to plants of the same species. 



8. T. stenopetalum Wats. Proc. Am. Acad. 22 : 468. 1887 ; Rob- 

 inson in Gray, Syn. Fl. N. Am. I 1 : 176. 1895. 



Probably biennial, glabrous and glaucous throughout: stem 

 branched from the base, simple or sparingly branched above, 

 slender, 3-6 dm. high: radical leaves soon withering, ap- 

 parently oblanceolate, entire or repand; cauline leaves erect, 

 sagittate at the base, narrowly lanceolate in outline, entire, 

 acute, 3-5 cm. long: sepals purplish or green, linear, dorso-ven- 

 tral pair slightly longer, hooded at the apex, about 1 cm. long; 

 petals narrowly linear, somewhat crisped above, white or roseate, 

 at least one-half longer than the sepals ; filaments tetradynamous, 

 linear, 8-14 mm. long; anthers coiled when dry, conspicuously 

 apiculate, about 5 mm. long: inflorescence elongated, lax, race- 

 mose even before an thesis; pedicels ascending, 4-6 mm. long: 

 pods slender, ascending, 4-5.5 cm. long, sessile; style not 



more 



mm. long, stigma very slightly 2-lobed 



Distribution: San Bernardino Mountains, southern California. 

 Type: Parish "in Bear Valley, San Bernardino Mountains, on 

 stony hillsides near the upper lake." 



Specimens examined: 



California: stony hillside, Upper Lake, Bear Valley, altitude 

 6500 ft., June, 1886, S. B. Parish 1794 (Gray Herb., type) ; same 

 locality, June 16-20, 1895, Parish 3787 (Gray Herb, and Univ. 

 Calif. Herb.). 



This is a most distinct species by virtue of the extraordinary 

 petals. The septum is characteristically that of other members 

 of this genus and there seems no reason to question its inclu- 

 sion within Thely podium. 



9. T. flexuosum Robinson in Gray, Syn. Fl. N. Am. I 1 : 175. 



1895; Howell, Fl. Northwest Am. 58. 1897; Frye & Rigg, North- 

 west Fl. 179. 1912. 



Perennial, glabrous throughout: caudex clothed with the pa- 

 pery remains of previous leaf bases ; stems 3-5 dm. long, slender, 

 branched, subdecumbent, frequently flexuous, nearly naked 

 above: radical leaves 8-15 cm. long, numerous, entire, lanceolate, 

 gradually narrowed to the slender petiole ; cauline leaves distant, 

 lance-linear, acuminate, auriculate at the base with linear, acute 

 lobes, the uppermost similar, much reduced : petals pale purplish 



