mens glabrous. Leaves about an inch long. Whorls few-(fi-lO-) flowered.
Flowers smaller than in the preceding species'. Anthers roundish-oblong.—
This is chiefly a West Indian species, and we doubt whether it has been
found hitherto within the limits of our Flora.
t Doubtful Species.
4. iS. involucrata (Pursh): stem alternately branched, very hispid; leaves
ovate-lanceolatc, acuminate, hirsute on both surfaces; stipules with many
bristles; heads terminal, involucrate: stamens exserted. Pursh,fl.X.p. 105.
Carolina, Fraser.—About a foot high. Leaves broad and somewhat oblique.
Flowers white, with a very long tube. Pursh.—The specimen in
Mr. Lambert’s herbarium, which is - said to have been collected by Fraser
(but we suspect there is some mistake as to the locality), is marked, perhaps
by Mr. Don, “ S. strigosa, Bot. mag."', a species which has been referred to
the genus Crusea.
3. BORRERIA. Meyer, fl. Essequeb. p. 79 ; DC. prodr. 4. p. 540.
Bigelovia, Spreng. syst.; not Spreiig. entd., nor of Smith, nor of Raf. nor of D C.
Calyx-tube ovate; the limb persistent, 2-4-toothed. Corolla infundibuli-
form or hypocrateriform, 4-lobed. Stamens 4. Stigma 2-cleft or undivided.
Fruit dry, crowned with the teeth of the calyx, 2-celled; the 2 one-seeded
carpels separating from the apex downwards, and each dehiscing equally by
a longitudinal chink along the inner surface. Seeds obovate-oblong, marked
on the face with a longitudinal furrow.—Herbaceous or suflrutescent (tropical)
plants. Leaves sometimes apparently verticillate from the fascicles in
the axils. Stipules cohering with both petioles, fringed with several bristles*
Flowers small, in axillary or terminal usually capitate whorls, blue or
white.
1. B. micrantha: annual; stem prominently 4-angled, glabrous; the
nodes distant; leaves linear-lanceolate, acute at each end, scabrous above,
nearly glabrous underneath ; bristles of the stipules 8-10, much longer than
the scabrous sheaths ; whorls many-flowered, all of them axillary ; calyx-
tube hispid ; corolla hypocrateriform, shorter than the calyx-teeth; capsule
ovate, membranaceous, crowned with the 4 spreading lanceolate-subulate
calyx-teeth.
Tampa Bay, Florida, Dr. Leavenworth !—Stem 2 feet or more in length
(erect?); the internodes about 2 inches long. Leaves 1-2 inches in length,
and 2-3 lines wide, almost hispidly scabrous above. Whorls 40-50-flowered.
Corolla white, scarcely a line long- Stamens very short. Style included,
notched at the apex. Capsule at first splitting within the calyx-teeth contrary
to the dissepiment, and afterwards septicidally nearly to the base.
“ Seed oblong, nearly terete, black, strongly pitted, with a narrow groove on
the face.—In the mode of dehiscence, this plant resembles Hedyotis, one
species of which (H. monosperma, Wight Sf Am.) has but a single seed in
each cell.
4. DIODIA. Linn. ; Geertn.fr. t. 25 ; DC. prodr. 4. p . 561.
Calyx-tube ovate or obovate, often 8-nerved ; the limb 2-4-parted. Corolla
infundibuliform or tubular, 4-lobed. Stamens 4, inserted into the throat
of the corolla. Stigma or style 2-cleft or undivided. Fruit dry or slightly
fleshy, crowned with the teeth of the calyx, 2- (rarely 3-) celled; the 2 (or 3)
one-seeded carpels separating from the apex downwards, both indehiscent.
Seeds oval, peltate, flattish, marked with a shallow furrow on the face.—
Herbaceous or rarely suflrutescent. plants (American, but chiefly tropical),
with the habit of Spermacoce. Leaves oftdn fascicled in the axils, so as to
appear verticillate. Stipules usually fringed with bristles. Flowers small,
white, axillary, solitary or several together.
* Corolla somewhat hypocrateriform, with a long and very slender tube: style deeply 2-
defb; fruit crowned with 2 (or 4 alternately smaller) calyx-teeth.
1. D. Virginiana (Linn.) : perennial, herbaceous; stem procumbent;
leaves varying from lanceolate-linear to oblong-lanceolate, sessile; bristles of
the stipules longer than the sheaths; flowers solitary, opposite ; tube of the
corolla 3 or 4 times the length of the calyx-teeth, tubular, the limb abruptly
expanded; stamens exserted ; lobes of the deeply 2-cleft style filiform ; fruit
ovoid or oblong, coriaceous, crowned with 2 (rarely 4 alternately smaller)
lanceolate calyx-teeth.
a. Limuei: nearly glabrous ; leaves lanceolate ; fruit oblong, somewhat
glabrous.—D. Virginiana, Linn. spec. 1. p. 104; Lam. ill. t. 63. D. Vir-
ginica, Willd. spec. 1. p. 58 (expl. syn. Walt.); Pursh, fl. 1. p . 105 ; Ell.
sk. 1. p. 190.; DC. prodr. p. 562. Spermacoce Virginiana, A . Rich,
mem. 1. c. t. 4, ƒ. 3.
fl. latifolia: somewhat pubescent; leaves ovate-lanceolate; fruit ovate
hairy.—D. Virginica, Michx. ■' fl. 1. p. 81, D. tetragona, Walt. Car ti
87; Ell. sk. 1. p. 190 ; DC. 1. c. '
■y. hirsuta : whole plant very hairy ; leaves linear-lanceolate, very acute •
fruit oblong.—D. hirsuta, Pursh, ft. 1 . p . 106 ; Ell. sk. 1 . p. 191; DC. 1. c. 1
Damp soil, particularly along rivers, a. If (3. Virginia 5 to East Florida 1
Alabama^ and Louisiana ! y. South Carolina, Elliott. Georgia, Pursh
Middle Florida, Dr. Chapman ! May-Oct.—Stem 1-2 feet long, somewhat
quadrangular. Leaves 1-2 inches long; in (3. those' of the branches much
shorter and broader in proportion than "the lower cauline ones ; in y. nearly
all of equal length. Flowers nearly half an inch long. Corolla white ; the
segments lanceolate-oblpng, more or less hairy inside. Anthers linear.
Capsule 2-3 lines long in a. and ft,, 4-5 lines in y., marked with several
strong longitudinal ridges. Seed oblong, plano-convex. Embryo nearly as
long as the albumen: cotyledons oblong : radicle inferior, slender— We find
so many intermediate forms between D. Virginica, tetragona, and hirsuta of
authors, that we can scarcely distinguish them even as varieties.
* * Corolla infundibuliform, with a wide tube: style undivided: stigma capitate or 2-
lobed: fruit crowned with 4 (rarely 5) calyx-teeth.
2. D. teres (Walt.) : annual, ascending or procumbent; stems pubescent
or hairy; leaves linear or linear-lanceolate; bristles of the-stipules much
longer than the fruit; flowers solitary or 2-3 in each axil; corolla much
longer than the minutely, serrulate-ciliate calyx-teeth; the stamens shorter
than its lobes; stigma large, 2-lobed ; fruit somewhat hairy, ovoid-turbinate
and somewhat quadrangular, separating into 2 crustaceous carpels__Walt
A'arf P' f r0clr- 111 5621 Darlingt.fl. Cest. p. 104. Spermacoce
diodma, Michx.! ft. 1. p. 82; Pursh, f l . l .p . 85; Ell. sk. 1. p. 189 • Torr '
fl. X.p. 170.
Sandy fields, New Jersey! to Florida ! and Louisiana ! and west to Illinois
! and the sources of the Canadian River, Dr. James ! Aug.-Sept__
Stem nearly terete, 4-16 inches high, much branched, clothed with a short