TETRAGONIACEAE 491 
II. SESUVIEAE 
Leaves with stipules: ovary 1- or 2-celled. 
epals unappendaged : stamens 1-3. 2. CYPSELEA. 
Sepals appendaged : stamens 5-10. 3. TRIANTHEMA. 
Leaves without stipules: ovary 3-5-celled. 4. SESUVIUM. 
III. AIZOEAE 
Diffuse or prostrate plants with numerous leaves and small axil- 
lary flowers. 5. GALENIA. 
IV. TETRAGONIEAE 
p E fleshy plants with large leaves and small flow- 
n their axils. 6. TETRAGONIA. 
1. MOLLUGO L. Annual slender herbs. Leaves alternate, sometimes 
mo whorled: blades narrow. ne 5, hyaline-margined, glabrous 
Stam 3—5. Styles 5, short.—About 12 
species, pe tropical. 
* 
. Maru qs L. prs slender, 
prostrate, 4—30 long: m-leaves 1l- 3 
ong; mem. spatulate Ln pes ys 
Ta a se or acu apex: flowers 2-5 
at each node, nie P dicelled: poe ellip- 
tie, 2.5-3 em. long, green, or white within: 
stamens eee 3, occasionally 4; filaments 
2. long: capsule lipsoid or nearly 
80, p slightly Im bed calyx, 20- 
30 seeded.— (INDIAN- s KWEE ARPE T- 
WEED.)—River-banks, aste-places, cult. 
grounds and pd de various provinees, 
Fla. to Tex pud Ont., a ee —(W. I., 
Mex., C. A., S. 4^) Spr. —fal 
2. CYPSELEA Turp. Annual or probably ipee: sueculent herbs. 
Leaves opposite: blades relatively broad. Sepals or 5, herbaceous, not 
horned. Stamens mostly 1-3. Styles usu- 
very short.—Only the following 
species Dp nown 
1. C. humifusa Turp. Plants forming mats 
2-10 em. wide, i ae odd elliptie 
PA. md ong or rarely larger, ob- 
tuse, entir pm rs axillary) Per bond 
celled : dL ae or oval, 1.5-2 m ong 
or rarely longer, Ki sane obtuse or scutis 
filaments often nearly ^ lon id as the i do 
al oleae ea A 1.5 n diam 
—Pinelands and sandy “soil, Ta. and Calif 
Nat. oP Ww. I.— fall. 
3. TRIANTHEMA L. Annual or 
perennial herbs or woody plants. Leaves Mau blades broad. Sepals 5, 
petaloid, each horned at the tip. Stam —10. St tigma lateral on the style. 
Ovules few. About 12 d PROB oe of the Old World tropics. 
1. T. Portulacastrum L. Plants di iffusely branched at the base, ie epee 
often 5-10 dm. dong? leaf-blades suborbicular to obovate, 0.5-2 cm. long: sep- 
