363 
glabrous, the interior acute and villous: style (together with stigmas) half as long as 
the stamen-tube.—On the Lower Rio Grande, October. 
* * * Stigmas filiform on style: heads not subtended by leaves. 
5. G@. czespitosa Torr. Very low, cespitose-spreading, white-villous: caudex 
thick and woody: leaves obovate, obtuse, the radical with an attenuate base, the 
cauline 2 and subsessile: peduncles short, simple: heads ovate, about 2 cm, long: 
flowers shining, yellowish white: calyx about as long as the hyaline acute (not 
keeled) bractlets; sepals obtuse, l-nerved, very villous.—Above. El Paso, near the 
Organ Mountains. 
10. FRGSLICHIA Mench. 
Hairy or woolly herbs, with spikes of perfect 3 (scarious)-bracted 
flowers, tubular and densely woolly calyx 5-cleft at summit (2 to 5- 
crested or tuberculate below) and indurated in fruit inclosing the thin 
indehiscent utricle, and filaments united into a tube bearing 5 oblong 
anthers and as many strap-shaped appendages. 
1. F. Floridana Moq. Root annual: stein leafless above, 3 to 9dm. high: leaves 
lanceolate, silky-downy beneath: spikes ovate or oblong, lengthening with age: 
bractlets thin, little shorter than the calyx, which is 4mm. long: style short: fruit- 
ing calyx round-ovate, somewhat compressed, becoming broadly winged, the wings 
reddish and irregularly toothed,—Sandy ground, southern and southwestern Texas. 
2. F. gracilis Moy. Like the last, except more slender, with narrow leaves, 
smaller spikes, and the crests of the matured calyx of nearly distinct rigid pro- 
cesses.—Near streams, from the Guadalupe to the Rio Grande. 
3. F. Drummondii Moq. Leaves oblong, 6 to 10 cm. long, 1.3 to 3 em. wide, attenu- 
ate at both ends, white-lanate above, silvery below: spikes ovate-pyramidal, acute, 
8 to 16 mm. long, 8 to12 mm. wide: flowers 5 mm. long, white: style medium length: 
fruiting calyx round-conical, compressed, twice longer than the bracts, the reddish 
wings erose-dentate.—Sandy places along the Rio Grande, from KE] Paso to its mouth, 
4, FP. Texana Coult. & Fisher. Erect, silky-villous, 5 dm. or more high, sparingly 
branched from a perennial base: leaves usually obtuse, mucronate, farinose, whit- 
ish and densely silky below; the radical spatulate, 8 to 9 cm. long, tapering to a 
slender petiole; the cauline short-petioled or subsessile, oblong or elliptical-ovate, 
2.5 to3.5 em. long: peduncles terminal and axillary: spikes 3 cm. long, lengthening in 
age: flowers 5 mm. long, with thin bracts and bractlets, the latter very broad and 
deeply concave: fruiting calyx fuscous, cordate, flat on one side, the wings pale, 
broad, crenate.—Pena, western Texas. Nealley, 421, referred to I. Floridana Mogq. in 
Contr. Nat. Herb. i, 48. 
5. F.interrupta Mog. Annual, lanately villous: leaves subsessile, lanate beneath, 
the radical oblong, narrowly spatulate, attenuate below: spikes 3 to 5 em. long, on a 
terminal peduncle: tlowers 4 to5 mm. long: bractlets dark, orbicular: style short: 
fruiting calyx cone-shaped, the narrow wings thin and dentate.—Southwestern 
Texas. 
11. IRESINE Browne. 
Herbs, with opposite usually petioled leaves, scarious whitish 
3-bracted flowers, which are crowded into clusters or spikes and branch- 
ing panicles, calyx of 5 sepals often bearing long wool, mostly 5 sta- 
mens, the slender filaments united into a short cup at base, ovate 
anthers, and a globular indehiscent utricle, 
