RocKv Mountain Flora 253 



pods, the oblanceolate blades of the petals and the glabrous fila- 

 ments. 



Idaho (?) : 1896, Henderson (type in U. S. Nat. Herb.). 



Thelypodium ovalifolium sp. nov. 



Perennial, perfectly glabrous : stems terete, 3—5 dm. high, 

 ascending : earliest basal leaves about 5 cm. long, petioled with 

 broadly oval blades, glabrous, entire, obtuse ; the later ones ob- 

 lanceolate ; stem-leaves sagittate, 2 cm. long, thick, sessile and 

 clasping, with short rounded basal lobes : inflorescence elongated : 

 sepals oblong, 3 mm. long : petals about 5 mm. long with spatu- 

 late blades and slender claw : pedicels in fruit 4—5 mm. long, 

 spreading: pods ascending, 1—2 cm. long and about i nmi. wide, 

 somewhat torn lose. 



This species is perhaps most nearly related to 7. piDiiculotiivi, 

 but differs in the short pods and the broad basal leaves. 



Utah: Panguitch Lake, 1894, M. E. Jones, 6oi^c (type in 

 U. S. Nat. Herb.). 



Lepidium Georginum sp. nov. 



Apparently biennial, cespitose from a slender taproot, 1—2 dm. 

 high : stems hirsute with short spreading hairs : basal leaves 1—5 

 cm. long, deeply pinnately divided with ovate lobes ; stem-leaves 

 similar or the upper oblanceolate arid entire ; all more or less 

 pubescent : inflorescence short : petals spatulate, slightly exceed- 

 ing the sepals : pods pubescent, rounded oval, 4 mm. long, 

 broadly winged above, forming at the apex two broadly ovate 

 obtuse lobes, over 0.5 mm. long. 



This species is in habit nearest L. Wriglitii \\\\.\\ which it has 

 been confused ; but it is less hairy and the pods are those of L. 

 dictyotiivi. 



Utah : " Southern Utah," 1874, C. C. Parry, ig (type in herb. 

 Columbia University); 1877, E. Palmer, ^o ; St. George, 1880, 

 M. E.Jones, 161^; Milford, 1S21 in part; 1894,57/(9/'. 



Thysanocarpus trichocarpus sp. nov. 



Annual, perfectly glabrous, except the fruit, 1-3 dm. high : 

 stem terete, branched : lower leaves oblanceolate or oblong, sin- 

 uately dentate, thick and somewhat glaucous ; uppermost leaves 

 linear or linear-lanceolate, entire : racemes often i dm. long : 

 petals slightly over i mm. long ; blades broadly spatulate : 

 pedicels in fruit about 5 mm. long, recurved : pod nearly orbicular, 



