WOOTON AND STANDLEY FLORA OF NEW MEXICO. 465 



7. SPHAEROSTIGMA Fisch. & Mey. 



Small annual with the general appearance of Ejiilobium, but the seeds naked 

 and the capsule sessile. 



1. Spliaerostigma chamaenerioides (A. Gray) Small, Bull. Torrey Club 23: 189. 

 1896. 

 Oenothera chamaenerioides A. Gray, PI. Wright. 2: 58. 1853. 

 Type locality: "Stony hills along the Rio Grande near El Paso." 

 Range: Utah to Texas and southern California. 

 New Mexico: Bishops Cap (T7oo ton). Lower Sonoran Zone. 



8. GALPINSIA Britton. 



Low perennials, more or less woody at the base, usually cespitose, 30 em. high 

 or less, with mostly small crowded leaves and large showy yellow flowers; hypan- 

 thium prolonged beyond the ovary, dilated upward; sepals green in bud, becoming 

 yellowish and blotched with red in anthesis; petals broad, bright yellow, turning 

 red on drying; stigma discoid, entire; capsules elongated, narrowed at the base, 

 somewhat curved. 



KEY TO THE SPECIES. 



Free portion of the hypanthium 9 to 13 mm. long, the lower 

 * I^art very slender, plants low and spreading, densely 



glandular 1 . G. tuhicula. 



Free portion of the hypanthium more than 30 mm. long, the 

 lower part relatively stout; plants erect or spreading, 

 with or without glandular i^ubescence. 

 Capsules with spreading pubescence. 



Corolla 35 mm. long 2. G. lampsana. 



Corolla 12 to 18 mm. long 3. G. camporum. 



Capsules with appressed pubescence or merely glandular. 



Leaves densely grayish-strigose ; plants low and tufted. 4. G. lavandulaefolia. 

 Leaves merely glandular-pubescent to glabrous; plants 

 taller and usually not tufted. 

 Free tips of the calyx lobes 3.5 to 4 mm. long; 



stems wiry, erect 5. G. toumeyi. 



Free tips of the calyx lobes 2.5 mm. long or less; 

 stems stouter, lower, more or less spreading. 

 Leaves glabrous or nearly so, linear-oblong; 



petals 25 to 30 mm. long G. G. fendleri. 



Leaves pubescent or glandular, linear or fili- 

 form; petals less than 20 mm. long. 

 Leaves puberuleut, linear; petals 15 to 20 



mm. long 7. G. hartwegi. 



Leaves densely glandular, nearly filiform; 



petals 12 to 15 mm. long 8. G. filifolia. 



1. Galpinsia tubicula (A. Gray) Small, Bull. Torrey Club 23: 186. 1896. 

 Oenothera tuhicula A. Gray, PL Wright. 1: 71. 1852. 

 Type locality: Prairies beyond the Pecos, western Texas. 

 Range: Western Texas and southeastern New Mexico. 



New Mexico: Hondo Hill (Wooton). Dry hills, in the Upper Sonoran Zone. 

 52570° — 15 30 



