ERIOCAULACEAE 257 
eciliate, those of the pistillate flowers wholly glabrous, those of the staminate 
minutely pubescent at the apex: seeds avoid, cancellate.—Sandy shores, NW 
Fla. 
7. L. minus (Chapm.) Small Leaf-blades 1—4 em. long, linear-attenuate, 
sparingly ciliate: scape slender, 0.5-3 dm. tall, pubescent: head globular to 
ae 3—4 mm. ee bre and sepals ciliate with relatively short 
hai L. MichauasW Chapm.]—Moist soil often on pond-margins, 
Coastal Plain, Fla. to x. c 
8. L. anceps (Walt.) Morong. Leaf-blades 2-6 cm. long, narrowly linear- 
attenuate, sparingly pubescent or glabrate: scape 0.5 dm. tall, very slender, 
pubescent: head spheroidal, 5 mm. bus or noe: bractle ets and sepals ciliate 
with relatively long hairs.—Sandy places and low or moist tp inelands, Coastal 
Plain, Fla. to Tex. and Va.; and unen Plateau, Ala 
2. SYNGONANTHUS Ruhl.  Flower-head conspicuously involucrate. 
Staminate flowers with 2 or 3 distinct sepals and petals: stamens 2-3: fila- 
ments — anthers 2- Pape Pistil- 
ate flow with 2 or 3 inct se- 
pals a nd 2 or 3 petals do at 
middle.—About 80 species, mostly na- 
tives of Pra al Amer rica.—Heads yel- 
lowish-whit 
1. S. flavidulus (Michx.) Ruhl. Leaf- 
blades filiform-linear or linear-subulate, 
em. long, floccose e the base: 
scapes 1-3 dm. tall, 5 -angled, pubes- 
very slender : heads 4-6 mm. ins 
. BA 
Low pinelands, margins of sandhill | e and bogs, Coastal Plain, Fla. to Ala. 
and N. C. (or Va. ?)—Spr. 
3. ERIOCAULON [Gronov] L. Flower-heads not conspicuously in- 
voluerate. Staminate flowers: sepals 2-3; petals 2-3, each with a glan 
stamens usu l 4—6; filaments distinct. a flowers: sepals as in the 
staminate flowers; petals much reduced and row; stamen anting.— 
W 
? 
out 200 aA mostly in warm temperate mi aoa regions.—Heads 
white, gray, or lead-colored, except in E. Ravenelii, in which they are brown 
or blaekish.—PiPEWORTS. BUTTON- RODS. HAT-PINS. 
Sheath at the 2 of the scape surpassing the leaves, except in the case of sub- 
merged plant 
Petals linear to spatulate: scape 4—7 ridged: head less 
than 10 mm. in diameter 1. E. lineare. 
Petals ‘broader scape 10—12- ridged: head over 10 mm. 
in diam 2. E. compressum. 
PRERIR A e base of the scape surpassed by the leaves, or 
16 m ur bractlets, sepals, and petals cili- | 
ate: Beacons: ‘acu 3. E. decangulare. 
d 3-5 mm. thick : oan sepals, and petals gla- 
rene bractlets obtuse 4. E. Ravenelàá. 
17 
