1906] Fernald, American Representatives of Arenaria verna 33 



America, extending south very locally to high inountains of Colorado, 

 Utah and Arizona. 



Var. RUBELLA (Wahl.) Watson. Glabrou.s or slightly pubescent; 

 the branches 1- (rarely 2-) flowered: calyx 3-4 mm. long, shorter than 

 the capsule.— Bibl. Index, 99 (1S78); Robinson in Gray, Syn. Fl. i. 

 pt. 1, 246 (1897). Alsine rubella Wahl. Fl. Lapp. 128, t. 6 (1812); 

 Giirke, PI. Eur. ii. 258 (1899), which see for further synonymy.— 

 Arctic and alpine Europe and Asl\: Greexlaxd: arctic America, 

 very locally south to the Rocky Mountains of British Columbia. 



* * Leaves triquetrous, one angle conspicuously stronger than the other two: 

 sepals with one rib stronger than the others. 



-»- Fruiting calyx exceeding the capsule, the tips of the sepals spreading: 

 seeds reddish-brown 0.4-0.5 mm. long. 



A. Rossii Richardson. Densely caespitose, glabrous, the very 

 leafy branches 2-10 cm. long: leaves slightly fleshy, triquetrous (often 

 appearing nerved), linear-subulate to linear-lanceolate, glabrous: 

 peduncles 0.5-2 cm. long, 1- (very rarely 2-) flowered: calyx wide- 

 spreading in anthesis, becoming short-campanulate in fruit, 3-4 mm. 

 long; the lanceolate or lance-ovate slightly fleshy sepals subulate- 

 tipped, usuallv exceeding the narrow-oblong petals, or the latter often 

 wanting. — Richardson hi Franklin, Jour. 738 — reprint 10 (1823); R. 

 Rr. in Parrv, hst Vovage, App. 272 (1823); Hook. Fl. Ror.-Am. i. 100 

 (1830); Torr. & Gray, Fl. i. 181 (1838); Porter & CouU. Fl. Col. 

 14 (1874); Robinson in (Jrav, Syn. Fl. i. pt. 1, 246 (1897). A. elegans 

 Cham. & Schl., Linnaea, "i. 56 (1826). A. stricta Watson, Ribl. 

 Index, 98 (1878) in part, not Michx. nor Alsine stricta Wahl. A. 

 verna Robinson in Gray, Syn. Fl. i. pt. 1, 245 (1897) in part, not L. 

 Alsine Rossii Fenzl, Verbreit. Alsin. tab. ad 18 (1833) and in I.edeb. 

 Fl. Ross. i. 356 (1841). Arctic Northwest America and Northeast 

 Asia, south in the mountains to Colorado and Oregon. Arctic 

 specimens have the calyx crimson-tinged, while those from southward 

 have greenish calyces but no other apparent differences. 



+- -f- Fruiting calyx shorter than the capsule, the sepals with appressed- 

 ascending tips: seeds black, 0.7-0.9 mm. long. 



A. litorea sp. n. Laxe caespitosa; ramis rigidis glabris 0.2-1.7 

 dm. altis; foliis lanceolato- vel lineari-subulatis carinatis, inferioribus 

 confertis fasciculatis, superioribus subdistantibus; panicula plerumque 

 dichotoma pauciflora, pedicellis rigidis; calyee 3-4.5 mm. longa, 

 sepalis anguste ovatis a{)iee subulatis trinerviis glabris granuliferis 

 marginibus late hyalinis; petalis anguste oblongis calyee brevioribus 

 vel eo subaequantibus; capsulis ovoideis calyee longioribus. 



Loosely caespito.se, the wiry glabrous branches 0.2-1.7 dm. long, 

 leafy only at the base: leaves lance- to linear-subulate, carinate, sub- 



