1264 RUBIACEAE 
4. D. Harperi Small. Plant smaller than that of the three preceding 
species, glabrous throughout: leaf spen spatulate to linear, 1-3 em. long, 
acute, eciliate: sepals lanceolate, 3-4 m. long: corolla-tube 3.5-4.5 mm. long: 
fruit Aen 5 mm. long.—Pond Ub. “Coastal Plain, S Ga. 
22. DIODELLA Small. Annual diffuse herbs. Leaf-blades firm-herba- 
ceous. Flowers axillary. Sepals 4. Corolla with a relatively short thick tube 
and 4 broad lobes. Stamens 5: filaments adnate up to the top of the corolla- 
tube, the free portions very short: anthers oval or ovoid. Stigma capitate or 
2-lobed. Capsular fruit crustaceous, lobed. About 15 species, American.— 
BUTTON-WEEDS 
Coro lia 4—5 mm. long: fruit hispidulous. 1. D. teres. 
Corolla 6—10 mm. long: fruit strigillose. 2. D. rigida. 
1. D. teres (Walt.) Small Stem or branches 1-4 dm. long, vos wr s or 
creeping, pubescent:. leaf- per linear or narrowly Daea celal’) 1-4 e 
long: sepals 4, acute, 1.5- long: corolla 
white or pinki ish, 4—5 “Jon ng; lobes 
als ovate to deltoid: "fruit obovoid, 4— 
4.5 long.  [Diodia teres Walt.]— 
on p fields, roadsides, open woods, 
dry sandy 'b anks, various provinces, Fla. to 
Tex., Kans., Mich., and Conn. — Sum.—fall. 
2. D. rigida uius & Sehlecht.) Small 
Stem and branches procumbent or r prostrate, 
finely pear leaf-blades thick, linear to 
linear-lanceolate, mostly 1-3.5 cm. long, 
acute, minutely rough-pubescent; stipules 
: : 
a 
e 
j 
B 
pede 
M 
un 
cor 
6-10 mm. long or rarely larger; lobes ovate E 
to ovate-laneeolate: frui a obovoid, 3-3.5 mm. long.—Pinelands, Everglade Keys, 
Fla.— (W. I.)—All yea 
23. BORRERIA Meyer. Herbs or woody plants. Leaf-blades herbaceous. 
Flowers in compact axillary cymes. Sepals usually 2, metimes 4, unequal. 
Corolla white with a short tube and 4 broad lobes. E: 4: filaments 
adnate to "a top of the corolla-tube: anthers globular to oval Capsule with 
each carpel open along the inner face.—About 90 species, in warm and tropical 
regions.—All year.—The following species are recognized as growing within 
our range. Borreria ocimoides appears in a multitude of forms, some of which 
may represent other species when more thoroughly studied. 
Plant perennial: flowers in a dense terminal glomerule, and sometimes in supple- 
mentary glomerule in ee upper leaf- axils : leaves fleshy ; blades of the upper ones, 
at least. narrowly line . B. terminalis. 
Plant annual: flowers in e in all or many of the leaf-axils: 
leaves herbaceous; blades not linear. 
Sepals subulate, ne early or quite as long as the capsule. 2. B. ocimoides. 
Sepals ovate, much shorter than the capsule. 3. B. laevis. 
1. B. terminalis Small. Perennial, 0.5-3 dm. tall, the stems often in colonies: 
leaf- blades linear- *spatulate to linear, often narrowly so, 1-3 em. long, veinless: 
Cisco gee re a hte ee ena meh ep a e a ce er FE“ 
