WOOTON AND STANDLEY FLORA OF NEW MEXICO. 491 



Corolla lobes erect or spreading; stamens in- 

 cluded, distinct. 

 Corolla tube equaling or exceeding tbe 

 calyx, bright pink or rose purple to 



crimson; flowers showy 5. Primula (p. 492). 



Corolla tube shorter than the calyx, white 

 or yellow; flowers very small. 

 Perennials, the stems branched at the 



base; capsules few-seeded 7. Drosack (p. 494) 



Annuals, the stems simple; capsules 



many-seeded 6. Androsace (p. 493). 



1. SAMOLUS L. Brookweed. 



Annual or perennial caulescent herbs with alternate entire fleshy leaves and small 

 while flowers in racemes or panicles; sepals united at the base, persistent, adhereni i<> 

 the ovary below; corolla perigynous, the tube very short; stamens 5, adnate to the 

 corolla, sometimes alternating with 5 staminodia; ovary 1-celled; capsule 5-valved, 

 hardly elongated; seeds numerous. 



KEY TO THE SPECIES. 



Rac*emes sessile or nearly so, numerous, glabrous; calyx 2.5 mm. 



broad 1 . .9. floribundus. 



Racemes long-pedunculate, few, glandular; calyx 3.5 to 5 mm. 



broad 2. S. cuneatus. 



1. Samolus floribundus II. B. K. Nov. Gen. & Sp. 2: 181. 1817. 



Type loca] nv: "Crescit in maritimis Peruviae juxta portum Callao de Lima." 

 Range: British America to California, Florida, Mexico, and South America. 

 New Mexico: Guadalupe Canyon; Roswell. Wet ground 



2. Samolus cuneatus Small, Bull. Torrey Club 24: 491. 1897. 

 Type locality: "On limestone rocks or soil, Texas." 

 Range: Texas and southeastern New Mexico. 



New Mexico: Roswell; Carlsbad; Dona Ana Mountains. Wei ground, in the 

 Upper Bonoran Zone. 



2. STEIRONEMA Raf. Loosestihi i 



Leafy-stemmed perennial herbs with opposite petiolate simple entire leaves and 

 axillarj yellow flowers on slender pedicels; flowers 5-merous; corolla rotate, 5-lobed, 

 each lobe convolute or involute about its stamen; stamens ;>. alternating with5 stami- 



QOdia; capsules rounded, naked; .seeds it) to l-'l). 



KKV TO THE SPECIES. 



Leaf blades ovate, ciliate 1 . - s '. ciliatum. 



Leaf blades lanceolate, not ciliate 2. 8. validulum. 



1. Steironema ciliatum (L.) Raf. Ann. Gen. I'liys. 7: 192 I" 10 

 Lyrimachia ciliata L. Sp. PI. I 17. I i i '• 



T,i/ lo< \i 1 1 v. "Habitat in Virginia, Canada 

 EIanoe: British America to Arizona, Alabama, and <;<■. 



New Mexico: Pecos; La Vega Beulah Gallinas Planting Station Wet ground, 

 in the 'I i.in^it Lon Zone. 



2. Steironema validulum Greene, Contr I S. Nat. Herb 18 I 1918 

 Type lo< ility: Uong » » d. i reek, near Fla ptafl iri 



I: \ ,,.i \ev. Mexii o and ixi ona, 



\ i ( m i i, ,, Mogollou Mountain \\ e( Bail. 



