1256 RUBIACEAE 
angustifolia Michx. Plant 0.5-3 dm. tall, pu or diffuse: blades 
the stem-leaves narrowly linear to linear-filiform, 4c . long: sepals ieee 
1-1.5 mm. long, much shorter than the hypanthium d maturity: eorolla white 
or purple-tinged; tube about 3 mm long: eapsule 2.5-3 mm. long, nearly ellip- 
soid, nearly equalling the sepals —Dry soil, limestone rocks, barrens, and 
prairies, various provinces, Fla. to Tex., Kans., and Ill.—Spr.-sum. 
13. H. filifolia (A. Gray) Small Plant loosely or diffusely Earle. ve 
dm. tall: blades of the stem- sin narrowly linear to subulate, 0.5-3 ¢ ong: 
sepals lanceolate, becoming oid, scarcely 1 mm. long: ¢ corolla a 
purplish; tube about 3 m long, “sparingly pubescent within: a aN globose- 
obovoid, about 1.5 mm. lon PONE inelands and sandy places, Evergl ade Keys, 
Fla. and Fla. Keys. —All year 
14. H. pulvinata Small. Plant compactly much as 0.8-1.2 dm. tall, the 
branches angled: blades of the stem-leaves linear or nea ae so, mainly 1- 1.5 
m. long, often curved: sepals ovate to elliptic-ovate, "gully T a ioe corolla 
bluish; tube about 3 mm . long, DUE no scent within: pone obovoid, 
about 2.5. mm. long.—Sand- -dunes, pen. Fla.—Spr.—fall. 
4. PENTODON Hochst. Annual tender herbs.  Leaf-blades broad. 
Flowers in axillary or terminal cymes. ida 5, rather long. Corolla funnel- 
form: tube short: lobes somewhat shorte 
in 
hypanthium, 2-lobed. 2 species, the fol- 
lowing and 1 African. 
P. Halei (T. & G.) AS Gray. Plant gla- 
Bo often diffusely branched and partly 
ereeping: leaf-blades dap ip to iod or ellip- 
tie-laneeolate, 1-5 cm. long, entire: hypan- — 
thium clavate: ie d a gular- a N V f U '( 
Or eae nin api t 2.5 mm. long: coro a 
white; tu long: lobes ovate 
ovate- a “capsule 3—4 mm. long a grounds, Coastal Plain, Fla. 
to La.—Spr.-fal 
5. EXOSTEMA L. C. Rich. Shrubs or trees. Leaf-blades leathery. 
Flowers axillary or in panieulate cymes. Sepals 5, short. Corolla with slender 
tube and 5 narrow lobes. Stamens 95: fila- »] 
i , "T 
ments adnate to the base the corolla-tube, 
pubescent below:, anthers rrowly linear, MYA 
exserted. Capsule dae p eds winged. VAX 
—About 30 species, tropical American. 
" E. caribaeum (Jaeq.) R. & S. Shrub or 
mal tree _ the pai glabrous: leaf- 
2.5 1 - 
sule elipsoid, 10-12 mm. long.—(PRINCE- 
woop.)—Hammocks, Me 20m Fla. 
and Florida noc —(W. I.)—8pr.- 
