PINK FAMILY 481) 



Refs. — Arexakia compacta Cov. Proc. Biol. Soe. Wash. 7: 67 (1.SSI2), typo Inc. lU'ar Whit- 

 ney Mdws., CoviUc 1653; Contrib. XJ. S. Nat. Herb. 4: 70. pi. 5 (1893). 



5. A. congesta Nutt. Flowering stems slender, simple, many from the 

 lirant-hiiig or matted crown of a perennial taproot, densely leafy at base, viseid. 

 4 to 10 inches high; basal leaves setaceous or needle-like, ciliolate-serrate near 

 the base. i/L" ^o % or 2 inches long; caiiliiie leaves reduced to distant bracts 

 2 or 3 lines long; tlowers congested in a head or close cluster, sessile or on 

 pedicels 1 to 2 lines long; sepals broadly ovate, acute; petals oblong. 2 lines 

 long, considerably exceeding the sepals. 



High Sierra Nevada and North Coast Ranges. 6000 to 10.000 feet. North to 

 Washington, east to Colorado. 



Locs. — Coast Ranges: Snow Mt., Piiri)iis 1143; South Yollo Bolly, Jepson ; Trinity Summit, 

 Mary H. Mannimj : Log Lake near Marble Mt., w. Siskiyou, BxMer 51. Sierra Nevada : Mt. 

 Ridwell, Mary H. Manning; Dixie Mts., Lassen Co., Baker 4- Nutting; Lassen Peak, B. M. 

 Austin ; Gold Lake, n<ill if- Babcock 4509; Little Cottonwood Creek near Mt. Whitney, Jciison 

 924; Mt. Guyot, Hall <j- Babcock 5527; Fare\Yell Gap, Hall <?■ Bahcock 5348; Little Kern 

 River, Ptirpus 1780. 



Yar. sufFrutescens Rob. Root-crown woody; cauline leaves less reduced; 

 heads luiilx'lhitc willi pedicels 2 to 4 lines long. — Sierra Nevada and far North 

 ( 'oast Ranges. Passing into the type and scarcely worth definition. 



Loes. — Sand Meadow, Sequoia Park, Jepson 4677 ; Lost Creek, Sawtooth Range, Jepson 

 4997; Sierra Co., Lemmon; Red Clover Creek, Plumas Co., Hall cf- Babcock 4447; Milford, 

 Lassen Co., T. Brandegee ; Log Lake, w. Siskiyou, Butler 51; Union Creek, Salmon Mts., 

 Hall 8605. 



Refs.— Arexaria conge.sta Nutt.; T. & G. Fl. 1: 178 (1838), type loe. n. Rocky Mts., 

 Nuttall. Var. surFRUTESCExs Rob. Proc. Am. Acad. 29: 295 (1894). Brewerina silffrutes- 

 cens Gray, Proe. Am. Acad. 8: 620 (1873). type spms. from Cisco and Donner, Bolander, 

 h'llliigg.' Areniiria snffruteseens Heller, Muhl. 6: 96 (1910). 



(i. A. aculeata Wats. Flowering branches erect, 4 to ti inches liigli. nearly 

 naked ; branches of the root-crown many, short, densely leafy at summit, form- 

 ing a dense mat, only a few of them giving rise to flowering branches; herbage 

 minutely glandular; foliage very glaucous; leaves subulate, pungent, 4 to 8 

 lines long; flowers in a rather close mostl.y few-flowered c.yme; sepals ovate, 2 

 lines long, acute, the petals IV-; times as long. 



Mountains of the Great Basin; in California reported only from Inyo Co. 



Locs. — Argus Mts., Purpus 5375; Tonopah, Nev., Shockley ; Mt. Rose. Washoe Co., Nev., 

 P. B. Kennedy. 



Refs. — Arenaria aculeata Wats. Bot. King, 40 (1871), type loe. Fremont's Pass, East 

 Humboldt Mts., Nev., Watson. A. congesta var. aculeata Jones, Proe. Cal. Acad. ser. 2, 5: 

 626 (1S95). 



7. A. macradenia Wats. Flowering stems erect, often swollen at the joints, 

 8 to 1") inches high, arising from a woody branching crown 1 to 4 inches high 

 and ending above in a loosely branched cymose inflorescence; herbage glabrous. 

 rarely a little viscid: leaves acerose or subulate, obscurel.y ciliate at base. % f" 

 21/2 inches long, the cauline little or not at all reduced and the basal rarely 

 dense or congested; pedicels 4 to 14 lines long; sepals ovate, very acute, 

 21/^ to 3 lines long, the petals equaling or commonly 1 or IV2 lines longer than 

 the sepals; filaments of stamens opposite sepals with glands at base. 



-Moiuitaiiis bordering the Jlohave Desert, north to Inyo Co.. south to S.-inta 

 Rosa Mt.. and east to Utah and Arizona, 4000 to 7000 feet. 



Locs. — Bishop, Heller 8357; Lone Pine, Jones; Argus Mts., Purpus 5088; Pahute Peak, 

 Purpus 5086; Greenhorn Mts., Hall 4' Babcock 5080; Rock Creek, w. Mohave Desert, Davidson; 

 Mt. Gleason, Barber 248; Swartout Canon, Mt. San Antonio. Hall 1276; n. slope San l?er- 

 nardino Mts., Parish 3734; Coyote Canon, Santa Rosa Mt., Hall 2126. 



Refs. — Arenaria macradenia Wats. Proc. Am. Acad. 17: 367 (1882). type loe. Mohave 

 Desert, Palmer, S. B. 4' '^^- F. Parish. A. congesta var. macradenia .Tones, Proc. Cal. .\cad. 

 ser. 2, 5: 626 (1895). A. macradenia var. pari.-ihorum Rob. Proc. Am. Acad. 29: 296 (1894), 



