PINK FAMILY 497 



1. H. cinerea DC. Tiny erect plants, 1 to 2y 2 inches high, or sometimes 

 forming prostrate mats 3 to 14 inches broad, the branches bearing 2-ranked 

 branchlets; herbage hispidulous ; leaves oblong-oblanceolate, iy 2 to 2 l / 2 lines 

 long ; flowers in all the axils, even the lowest ; calyx y 2 line long, very hispid. 



San Joaquin region at the edge of the foothills on either side of the valley. 

 Naturalized from southern Europe. May-June. 



Locs. Wawona, Congdon in 1897; Oakdale, Jepson in 1896; Escalon, Eastwood in 1905; 

 Stockton and Tracy, K. Brandegee in 1907. 



Kefs. HERNIARIA CINEREA DC. Fl. Fr. Suppl. 375 (1815), type European; Jepson, Fl. W. 

 Mid. Cal. 172 (1901). Paronychia pusilla Greene, Pitt. 1: 302 (1889), type loc. Bethany, San 

 Joaquin Co., Greene. 



10. PENTACAENA Bartl. 



Tufted perennials with subulate pungent leaves and silvery-hyaline stipules. 

 Flowers sessile, clustered in the axils. Sepals 5, almost distinct, very unequal, 

 hooded, the 3 outer larger, and with a stout divergent terminal spine, the 2 

 inner smaller and with a shorter spine. Petals minute, scale-like. Stamens 3 

 to 5, inserted at the base of the sepals. Style very short, bifid. Utricle en- 

 closed in the rigid persistent calyx. Species 5, Pacific North America and 

 andine South America. (Greek pente, five, and akaina, a thorn, the five sepals 

 spine-tipped.) 



1. P. ramosissima H. & A. SAND MAT. Stems prostrate, forming dense 

 mats 5 to 18 inches broad, pubescent; leaves crowded on the stems, 2 to 4 

 lines long, the stipules % or sometimes nearly as long; calyx iy 2 to 2 lines 

 long; sepals hairy or woolly below the divergent spinose apex; utricle apiculate. 



On sand-dunes or in sandy soil along the entire California coast. In South- 

 ern California extending inland 25 miles. North to Washington, south to 

 Mexico. Chile. Apr.-May. 



Loes. San Diego, G. W. Dunn; Delmar, Jepson 1614; Pala and Poway, ace. Parish; Ocean- 

 side, Parish 4439; Santa Rosa Island, P. M. Jones; Santa Cruz Island, T. Brandegee; Arroyo 

 Grande, Alice King ; Pacific Grove, Jepson; San Francisco, C. F. Baker 2998; Humboldt Bay, 

 Tracy 3018. 



Refs. PENTACAENA RAMOSISSIMA H. & A. in Hook. Bot. Misc. 3: 338 (1833), type from 

 Chile; Jepson, Fl. W. Mid. Cal. 172 (1901). P. polycnemoides Bartl. in Presl, Rel. Haenk. 2: 

 5, t. 49, fig. 1 (1835). 



11. PARONYCHIA L. WHITLOW-WORT. 



Prostrate tufted perennial, with scarious stipules and clustered axillary 

 flowers. Sepals 5, almost distinct, equal, linear or oblong, concave or cucul- 

 late under the apex, the very tip furnished with a short bristle or cusp. Petals 

 filament-like, or minute teeth, or none. Stamens 5, inserted on the base of 

 the sepals. Ovary 1-ovuled. Style deeply 2-parted. Fruit a utricle enclosed 

 in the persistent calyx, at length bursting longitudinally. Species 40, all 

 continents except Australia. (Greek paronuchia, a whitlow or felon, the 

 name applied to an herb used as a remedy.) 



1. P. franciscana Eastw. Stems 4 to 12 inches long, tough, the internodes 

 very short (only 1 to 2 lines long at base) ; leaves oblanceolate, acute, cuspidate, 

 2 to 4 lines long, much crowded on the branches and branchlets, especially to- 

 wards the ends; stipules hyaline; flowers 1 line long, obviously pediceled, 3 

 or 4 in the axils. 



Grassy hilltops, San Francisco and Bodega Port. Introduced from Chile 

 where it is native. Apr.-June. 



Refs. PARONYCHIA FRANCISCANA Eastw. Bull. Torr. Club, 28: 288 (1901), type spms. from 

 San Francisco and Bodega Port. P. chilensis Greene, West Am. Sci. 3: 156 (1887) and Fl. 

 Fr. 131 (1891), not DC; Jepson, Fl. W. Mid. Cal. 172 (1901). 



12. ACHYRONYCHIA T. & G. 

 Glabrous plants with spatulate leaves and large hyaline stipules. Leaves 



