Spergularia. CARYOPHYLLACEiE. 251 



eastern form also when growing on the sea-shore sometimes has a stoutish, perhaps peren- 

 nial root. 



S. Cleveland!, Robinson. Perennial, viscid-glandular : leaves ascending, conspicuously 

 fascicled in tiie axils, almost terete and filiform, very acute and attenuate, 5 to 10 lines in 

 length : flowers much as in the last, but often somewhat larger : seeds winged. — Proc. 

 Am. Acad. xxix. 310. Tissa villosa, Britton, 1. c. 129. T. Clevelundi, Greene, Fl. Francis. 

 127. T. rubra, K. Brandegee, Zoe, iv. 84. — Sandy soil, California, San Diego, Cleveland, 

 Mrs. Brandegee; San Jose, Mrs. Bush ; and at the Presidio, San Francisco, Jejison. Differ- 

 ing from the S. American S. villosa, Camhess., in its lower growth, distinctly smaller flowers, 

 shorter pedicels, and somewhat firmer and less flaccid leaves. 



* * Slender spreading or erect annuals of the West and Southwest, scarcely fleshy, and 

 with short deltoid stipules. 



-1— Corolla roseate (or white ?), more than half as long as the sepals. 



S. salsuginea, Fenzl. Viscid-pubescent to nearly glabrous : leaves not fascicled, linear- 

 filiform : pedicels slender, about 2 lines long, spreading or deflexed : sepals in fruit 1| 

 lines long, but little exceeded by the capsules : upper leaves much reduced, those in the 

 higher parts of the almost naked inflorescence not exceeding their scarious stipules : stamens 

 usually only 2 to 3. — Fenzl in Ledeb. Fl. Ross. ii. 166. S. diandra, Boiss. Fl. Orient, i. 

 733. Arenaria diandra, Guss. Prodr. Sic. i. 515. A. salsuginea, Bunge in Ledeb. Fl. Alt. 

 ii. 163 ; Ledeb. Ic. t. 409. (Siberia.) 



Var. bracteata, Robinson, n. var. Closely sinmlating the Asiatic type in habit, 

 pubescence, flowers, fruit, and seeds : inflorescence leafy ; even the uppermost bracts con- 

 siderably exceeding their stipules. — S. diandra, Robinson, Proc, Am. Acad. xxix. 310. 

 Tissa diandra, Britton, Bull. Torr. Club, xvi. 128. — Sandy banks, Texas, Drummond, 

 Lindheimer ; Oregon, Henderson ; Washington, Sulcsdoi-f. Decidedly less fleshy in stems 

 and leaves than S. salina. Doubtful specimens from Central California, coll. Mrs. 

 Brandegee, are transitional to S. tenuis. 



-I— -(— Flowers very small : corolla much reduced, consisting of 1 to 3 minute petals, or 

 wanting. 



S. Platensis, Fenzl. Low, glabrous, 2 to 6 inches in height, diffusely branched : leaves 

 a third to one inch in length: stipules deltoid: flowers small, subglobose, 1 to Ij lines in 

 diameter, not closely aggregated ; pedicels 2 to 3 lines long : sepals elliptic-ovate, a line or 

 less in length, thick in the middle but scarious-margined : valves of the capsule a third to 

 half longer than the sepals ; seeds angled, somewhat triangular in outline, finely but dis- 

 tinctly roughened. — Ann. Wien. Mus. ii. 272. 5. ^rac(7/s, Robinson, 1. c. 311. Balardia Pla- 

 tensis, Cambess. in St. Hil. Fl. Bras. Merid. ii. 180, t. 111. Lepigonum gracile, Wats. Proc. 

 Am. Acad. xvii. 367. Tissa gracilis, Britton, Bull. Torr. Club, xvi. 128. — Sandy ground, 

 dried ponds, etc, Dallas, Texas, Reverc/ion, to S. California, Parry, Nevin, Orcutt. (S. 

 Brazil, whence perliaps introd.) 



S. tenuis, Robinson, 1. c. Dichotomously much-branched, becoming 8 to 10 inches in height, 

 somewhat glandular-puberulent or pubescent above: leaves 6 to 10 lines long: the very 

 numerous flowers short-pedicelled, the uppermost sessile in close groups : bracts inconspicu- 

 ous : stamens 2 to 5 : capsule twice the length of the ovate-oblong sepals. — Lepigonum 

 tenue, Greene, Pittonia, i. 63. Tissa tenuis, Greene in Britton, 1. c. T. diandra ? K. Bran- 

 degee, Zoe, iv. 84. — California near Alameda, Greene, Williams, Colusa Co., Pt. Costa, and 

 Tulare, ^frs. Brandegee. A species characterized by its copious branching, small closely 

 aggregated flowers, and reduced corolla, yet doubtless intergrading with S. salina, of which 

 it may be merely a soil variation. Var. involucrAta, Roliinson, n. var. Heads of closely 

 aggregated flowers, even at full maturity subtended and exceeded by 2 to several foliaceous 

 bracts. — Mt. Eden, Calif., Mrs. Brandegee, growing with and passing into the typical form. 



* * * Annuals or biennials, more decidedly fleshy, usually of maritime or saline habitat : 

 flowers of medium size : corolla more or less conspicuous, white or pink, less frequently 

 pink-purple : stipules ovate or deltoid, scarious but not conspicuous or silvery. 



S. salina, J. & C. Pkesl. Commonly although not always pubescent : leaves often fascicled 

 in the axils : sepals ovate to oblong-lanceolate, narrowed upward although obtuse at the 



