WOOTON AND STANDLEY FLORA OF NEW MEXICO. 267 



2. Stanleya albescens: Jones, Zoe 2: 17. 1891. 

 Type locality: "On the Moencoppa," Arizona. 



Range: Western Colorado and northwestern New Mexico to Arizona. 

 New Mexico: Northwestern corner of the State (Palmer). Upper Sonoran Zone. 



3. STANLEYELLA Rydb. 



A tall branched biennial; leaves thin, the lower lyrately pinnatifid, the upper entire; 

 sepals thin, petaloid, white, oblong or linear, spreading or reflexed in anthesis; petals 

 white, with spatulate blades tapering into short claws; pods slender, terete, with 

 short stipes and styles; stigmas truncate or nearly so. 



1. StanleyeUa wrightii (A. Gray) Rydb. Bull. Torrey Club 34: 435. 1907. 



Thelypodium wrightii A. Gray, PI. Wright. 1: 7. 1852. 



Type locality: Pass of the Limpio, western Texas. 



Range : Colorado and Utah to New Mexico and Arizona. 



New Mexico: Dulce; Hurrah Creek; Magdalena Mountains; Mogollon Mountains; 

 Organ Mountains; White Mountains; Gray; Raton'. Hillsides, in the Transition Zone. 



4. HESPERIDANTHUS (Robinson) Rydb. 



Erect slender glabrous perennial herb with 'glaucous foliage, the stems corymbosely 

 branched above; basal leaves obovate, toothed, the cauUne ones linear, entire; sepals 

 firm, erect, the outer strongly saccate at the base, purple; petals purple, with obovate 

 blades; stigma conic or ovate, neither truncate nor bilobate; pods terete, linear, short- 

 stipitate. 



1. Hesperidanthus linearifolius (A. Gray) Rydb. Bull. Torrey Club 34: 434. 1907. 



Streptanthus linearifolius A. Gray, Mem. Amer. Acad. n. ser. 4: 7. 1849. 



Thelypodium Unearifolium S. Wats, in King, Geol. Expl. 40th Par. 5: 25. 1871. 



Type locality: Mountainous regions from Santa Fe to Las Vegas, New Mexico. 

 Type collected by Fendler (no. 24). 



Range: Colorado to northern Mexico. 



New Mexico: Gallup; Santa Fe and Las Vegas mountains; Sierra Grande; GalUnas 

 Mountains; Raton; Mogollon Mountains; Burro Mountains; Black Range; San Luis 

 Mountains; Tortugas Mountain; Organ Mountains; White and Sacramento mountains; 

 Guadalupe Mountains. Canyons and thickets, in the Transition Zone. 



5. PLETJROPHRAGMA Rydb. 



Glabrous biennials witli paniculate inflorescence; leaves thick, entire, the basal 

 oblanceolate, the cauline linear-lanceolate, sessile; sepals ascending, thin, somewhat 

 petaloid; petals white, on slender claws; pods slender, terete, torulose, tapering to a 

 short stipe below and to a slender style above; stigma entire; septum with a strong rib. 



KEY TO THE SPECIES. 



Stipes about 1 mm. long; inflorescence short 1. P. integrifolium. 



Stipes 2 to 3 mm. long; inflorescence elongated 2. P. gracilipes. 



1. Pleurophragma integrifolium (Nutt.) Rydb. Bull. Torrey Club 34: 433. 1907. 



Pachypodium integrifolium Nutt.; Torr. & Gray, Fl. N. Amer. 1: 96. 1838. 



Thelypodium integrifolium Endl.; Walp. Report. Bot. 1: 172. 1842. 



Type locality: "Elevated plains of the Rocky Mountains, toward the Oregon, as 

 far as Wallah wallah." 



Range: Nebraska and Washington to California and New Mexico. 



New Mexico: Farmington {Wooton 2783, Standley 7158). Damp ground, in the 

 Upper Sonoran Zone. 



