Arenaria. CARYOPHYLLACEiE. 241 



by the white oblong slightly emarginate petals. — A. ursina, Robinson, Proc. Am. Acad. xxix. 

 294. — Dry hills, Bear Valley, San Bernardino Mts., Parish Brus., August, 1882. Further 

 material of this variety, secured from the same locality in June, 1895, by S. B. Parish, leaves 

 little doubt that it is best regarded as a condensed stunted form of A. cujiiUaris, with shorter 

 petals. 



-1— -i— Sepals ovate or ovate-lanceolate, acute or acuminate, shorter than the petals (except 

 in A. congesta, var. Parishiorum). 



A. COmpacta, Coville. Root thick, ligneous : caudex much branched and bearing very 

 closely tufted rosulately spreading subulate glaucous leaves ; these not exceeding 2 lines in 

 length, minutely glandular, ciliate: stems slender, an inch or more in height, simple or 

 sparingly branched, almost naked, the cauline leaves being few and much reduced : flowers 

 terminal on the branches: sepals Ij lines long, scarious-margined, thickened in the middle, 

 attenuate. — Proc. Biol. Soc. Wash. vii. 67, & Contrib. U. S. Nat. Herb. iv. 70, t. 5. — Cali- 

 fornia, mountains of Tulare Co., Coville ; Bloody Canon, Mono Co., Congdon. 



A - congesta, Nutt. Smooth or rarely with slight traces of a minute glandular puberu- 

 lence ; stems slender, simple, 5 to 14 inches high, numerous, springing from a matted 

 non-ligneous caudex : basal leaves erect, gramineous-setaceous, 6 lines to 3 inches long, 

 ciliolate-serrate near the base : cauline leaves rather distant, gradually reduced ; flowers 

 sessile in 1 to 3 dense heads (subtended by 1-several pairs of scarious-margined bracts) : 

 sepals carinate, ol)scurely 3-nerved, scarious except in the middle, 2 lines long, considerably 

 exceeded by the narrowly oblong petals : stigmas not strictly capitate. — Nutt. in Torr. & 

 Gray, PI. i. 178; Torr. in Fre'm. Rep. 87 ; Wats. Bot. King Exp. 39; Porter & Coulter, Fl. 

 Col. 13 ; Brew. & Wats. Bot. Calif, i. 69 ; Greene, Fl. Francis. 123 (excl. syn.) ; K. Brande- 

 gee, Zoe, ii. 161. — Rocky Mts. of Colorado and Wyoming to the Yosemite, ace. to Mrs. 

 Brandegee, and northward to Washington, Suksdnrf. 



Var. sufifrutescens, Robinson. Caudex sometimes, perhaps always, very ligneous : 

 its branches becoming 2 to 3 lines in diameter, bearing fascicled sub-equal leaves (an inch or 

 less in length) : flowers somewhat smaller (sepals \\ lines long) in capitate umbels : pedicels 

 slender, 2 to 3 times as long as the calyx : stigmas capitate. — Proc. Am. Acad. xxix. 295 ; 

 Brewerina snffrutescens, Gray, Proc. Am. Acad. viii. 620, under A. congesta; Brew. & Wats. 

 Bot. Calif, i. 69; Wats. Bibl. Index, 95; Greene, Fl. Francis. 123. — California, Cisco, 

 Bolander & Kellogrj ; Emigrant Gap, Jones ; Tulare Co., Coville & Fnnston. A form too well 

 marked in its foliage, ligneous caudex, and allium-\\ke inflorescence to be united with the 

 typical A. congesta, yet appearing to intergrade with it. One of the transitional forms has 

 been collected in Sierra Valley by Lemmon. 



Var. subcongesta, Watson. Caudex more or less ligneous, stems smooth, glandu- 

 lar- or pulverulent-pubescent, often knotted with enlarged nodes: flowers as in the type, 

 but borne in more or less expanded dichotomous cymes : leaves varying greatly in length 

 and texture. — Bot. Calif, i. 69, & Bibl. Index, 454. A. Fendleri, va,v. subcongesta, \Ya.ts. 

 Bot. King Exp. 40, & PI. Wheeler, 6 ; Porter & Coulter, Fl. Col. 13 ; Rothr. Enum. PI. Col. 

 35. A. Fendleri, var. glabrescens, Wats. Bot. King Exp. 40, & Bibl. Index, 95, differs only 

 in its still looser inflorescence, and should doubtless be referred hither. — Rocky Mts. of 

 Colorado and Arizona, Newberry, northward to Brit. America, Cypress Hills, Macoun, and 

 Lewis River, Dawson (ace. to J. M. Macoun), and westward to Oregon, Howell, and Cali- 

 fornia, Sierra Co., Lemmon, Donner Pass, Torrey. 



Var. Kingii, Robinson, n. comb. Habit and glandular pubescence as in loose-flowered 

 forms of the preceding variety : petals emarginate to deeply bifid. — A. Kingii, Jones, Proc. 

 Calif. Acad. Sci. ser. 2, v. 627. Stellaria Kingii, Wats. Bot. King Exp. 39, t. 6. — Mountains 

 of N. Nevada, Watson, to Utah, Parry, Palmer, Jones, and Ward (form with petals merely 

 emarginate) ; fl. July, August. 



Var. macradenia, Jones, 1. c. 626. Glabrous or nearly so : rootstock more or less 

 ligneous, extensively and irregularly branched: stems stout for the genus, 6 to 15 inches 

 high, knotted with the enlarged nodes: leaves chiefly cauline, glaucous, rigid, pungent, 

 6 lines to 2i inches long : flowers large, in an open cyme : sepals fleshy, subcarinate, 2| to 

 2f lines long, with membranous margins : petals considerably exserted, obovate or oblong 

 with obtusish sometimes auricled bases : stamineal glands moderately developed : stigmas 

 subcapitate. — A. macradenia, Wats. Proc. Am. Acad. xvii. 367, in part. — S. E. California, 



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