56 MISSOURI BOTANICAL GARDEN. 
S. recurva Engelm. Patterson, Check-List, 130 
(1887), name only. 
Monoecious, erect, 2 to 5 dm. high; leaves subcoria- 
ceous, 5 to 7 pseudo-penninerved from near the base, 5 to 
15 cm. long, 2.5 to 9 cm. wide, broadly ovate, or ovate 
lanceolate, or ovate elliptical, obtuse or acute, abruptly 
short acuminate at the apex, rounding or gradually narrow- 
ing to the base, or rarely subcordate, auriculate or hastate ; 
scape simple, rather weak, ascending, smooth, usually 
shorter than the leaves; 2 to 4 lower verticils fertile; fer- 
tile pedicels thick, divaricate in flower, weak and reflexed 
in fruit, 12 to 25 or rarely 40 mm. long, mostly longer 
than the sterile; bracts broadly ovate, 3 to 6 or 8 mm. 
long; flowers 2.5 to 3 cm. across; sepals ovate, obtuse, 
scarious at the tip; stamens about 21, the dilated pubes- 
cent filaments a little longer than the short oblong anthers; 
achenium 2 mm. long, obliquely obovate, winged on both 
margins, with a narrow dorsal crest, laterally with an 
oblique wing-angle extending downward from the base of 
the short horizontal or oblique beak; short resin passages 
usually present between the lateral angle and the crest; 
fruiting head 9 to 12 mm. in diameter; linear oblong or 
oblanceolate phyllodia, 10 to 15 mm. wide, 4 to 6 dm. long, 
often present.— In swamps and ponds from Texas to 
Mississippi and northward to the “‘ sunken lands ’’ of South- 
east Missouri.— Plate 26. 
Specimens examined from Texas (Lindheimer, 713, New Braunfels, 
1847 and 1851; Reverchon, 1875, and “Curtiss, 2746 *’’ 1881, and 939, 
1880, from Dallas; E. Hall, 624, Hempstead); Louisiana (Fendler, 1846, 
New Orleans; Dr. Hale, Alexandria and Bayou Robert); Mississippi (A. 
Wood, 1860); Arkansas (Eggert, 1893, Paragould); Missouri (Bush, 
1893, Kennett, Dunklin Co.). 
S. Mexicana Steudel, Nom. 2: 491 (1841). &. macro- 
phylla Zuce. in Abh. Kén. Bayr. Akad., 289 (1832), 
not Bunge; Micheli in DC. Monog. Phan. 3: 71 
(1881). See below, p. 33. 
This species is said by Micheli to be represented in the herbarium of 
30 
