WOOTON AND STANDLEY FLORA OF NEW MEXICO. 235 



New Mexico: La Cuesta; Kingston; Mogollon Mountains; Organ Mountains; 

 White Mountains; Gray. Moist canyons, Upper Sonoran and Transition zones. 



2. Drymaria pachyphylla Woot. & Standi. Contr. U. S. Nat. Herb. 16: 121. 1913. 

 Type locality: Dry plains south of the White Sands, New Mexico. Type collected 



by Wooton (no. 405). 



Range: Southem New Mexico and western Texas. 



New Mexico: South of the White Sands; Parkers Well. Dry plains, in the Lower 

 Sonoran Zone. 



3. Drymaria spergviloides A. Gray, Mem. Amer. Acad. n. ser. 4: 11. 1849. 

 Type locality: "Valley of Santa Fe Creek in the mountains, in a plain grazed 



by cattle and horses," New Mexico. T^-pe collected by Fendler (no. 55). 



Range: New Mexico and Arizona to western Texas. 



New Mexico: Santa Fe; Mogollon Mountains; Santa Rita; Sandia ^fountains; 

 Animas Valley; San Luis Mountains; White Mountains. Open slopes, in the Upper 

 Sonoran and Transition zones. 



4. Drymaria tenella A. Gray, Mem. Amer. Acad. n. ser. 4: 12. 1849. 



Type locality: "Shady places, in woodland in the mountain region, 8 miles 

 west of Las Vegas," New Mexico. Type collected by Fendler (no. 56). 

 Range: New Mexico, southward into Mexico. 

 New Mexico: Las Vegas; Mogollon Moimtains; Sawyers Peak. Transition Zone. 



5. Drymaria depressa Greene, Leaflets 1: 153. 1905. 



Type locality: Sawyers Peak, Black Range, New Mexico. Type collected by 

 Metcalfe (no. 1430). 

 Range: Known only from the type locality. 



2. TISSA Adans. Sand spUrry. 



Branched annual with fleshy linear scarious-stipulate leaves; styles and capsule 

 valves each 3. 

 1. Tissa rubra (L.) Britton, Bull. Torrey Club 16: 127. 1899. 



Arenaria rubra L. Sp. PI. 423. 1753. 



Type locality: European. 



Range: Adventive from Eurasia in many parts of the United States. 



New Mexico: Albuquerque (Herrich). 



3. ALSINE L. Starwort. 



Slender low annuals or perennials; flowers solitary or cymose; sepals 4 or 5; petals 

 white, 4 or 5, deeply cleft, sometimes wanting; stamens 8 or 10 or fewer; styles 3, rarely 

 4 or 5; capsule ovoid, 1-celled, opening by twice as many valves as there are styles. 



key to the species. 



Leaves ovate, conspicuously petioled. 



Leaves cordate or subcordate, all long-petioled 1. A. cuspidata. 



Leavesroundedor narrowed at the base, the uppermost sessile.. 2. A. media. 

 Leaves linear to narrowly laafeolate, sessile. 



Plants more or less viscid 3. A. jamesiana. 



Plants not at all viscid. 



Petals minute or none; branches of the inflorescence re- 

 flexed 4. A. baicalensis. 



Petals equaling or exceeding the sepals; branches of the 

 inflorescence ascending. 

 Leaves broadest above the middle, narrowed at the 



base 5. A. longifolia. 



