1088 ACANTHACEAE 
Corolla 2-2.5 cm. long. l. D. crassifolia. 
Corolla 1 cm. long or shorter. 
Flowers scattered along one side of the upper part of the peduncles. 
Leaves remote, reflexed : eorolla-tube 5-6 mm. long. 
Leaves approximate, spreading or ascending: corolla-tube 8-10 mm. long. 
Flowers in head-like spikes terminating the peduncle, or approximate at the end. 
Spikes loosely flowered : corolla-tube glabrous within: style glabrous. 
Spikes densely flowered : corolla-tube villous within : style pubescent at the base. 
. D. angusta. 
. D. lanceolata. 
UE 
ovata. 
. D. Americana, 
C'u Cot 
1. Dianthera crassifólia Chapm. Foliage glabrous. Stems 2-4 dm. tall, angled, 
simple or nearly so: leaves few ; blades linear, usually narrowly so or spatulate near the 
base of the stem, 3-15 cm. long, fleshy : peduncles commonly longer than the subtending 
leaves, often surpassing the stem: calyx-lobes linear, 1-1.5 cm. long, acuminate: corolla 
bright-purple, 2-2.5 cm. long ; lipslonger than the tube, the lower one striped, all rounded 
or notched : capsules 2-2.5 cm. long, the body and base about equal in length. 
In wet pine lands, Florida. Spring. 
2. Dianthera angüsta (Chapm.) Small. Foliage glabrate. Stems 2-5 dm. tall, 
simple or nearly so: leaves very few ; blades linear or narrowly linear-lanceolate, acute or 
acuminate, 2-7 cm. long, or oblong-spatulate at the base of the stem, sessile or subsessile, 
more or less strongly reflexed : peduncles somewhat longer than the leaves or shorter, bear- 
ing 2-few flowers near the end : calyx-lobes linear, 5-7 mm. long, ciliate, acute : corolla 
about 10 mm. long; tube surpassing the calyx, the lower lip with a retuse middle lobe and 
obtuse lateral lobes: capsules about 1.2 cm. long. [D. ovata var. angusta Chapm. ] 
In pine-land ponds, Florida. Spring. 
3. Dianthera lanceolàta (Chapm.) Small. Foliage puberulent. Stems erect or 
spreading, 1-3 dm. long, more or less branched: leaf-blades linear to linear-elliptic or 
elliptic-lanceolate, 3-10 cm. long, more or less acuminate, undulate, sessile or nearly so: 
spikes slender, 3-10 cm. long, interrupted along the peduncle : calyx-lobes narrowly linear, 
5-7 mm. long: corolla about 1 em. long; lips nearly as long as the tube, which is saccate 
near the base, the upper lip truncate or retuse, the lower one 3-lobed, the middle lobe 
truncate or retuse, the lateral ones obtuse: capsules 1.5 em. long, the body as long as the 
stipe-like base or shorter. [.D. ovata var. lanceolata Chapm. ] 
In swampy ground, Missouri to Tennessee, Florida and Texas. Spring and summer. 
4. Dianthera ovàta Walt. Foliage puberulent or glabrous. Stems 1-3 dm. tall, 
simple or sparingly branched: leaf-blades oblong to elliptic, acute or acutish, often 
acuminate at the base, short-petioled : spike long-peduncled, 1-2 cm. long, contin- 
uous: calyx-lobes narrowly linear-acuminate, 6-12 mm. long: corolla pale purple to 
violet, about 1 cm. long; limb as long as the tube, or sometimes longer, 2-lipped, the 
upper lip notched, the lower lip 3-lobed, spreading ; lobes rounded : capsules 1 cm. long, 
the stipe-like base as long as the body or shorter. 
Inswamps, Virginia to Florida and Texas. Spring and summer. 
5. Dianthera Americàna L. Perennial by horizontal or creeping rootstocks, the foli- 
age glabrous or puberulent. Stems 3-10 dm. tall, simpleor branching, angled : leaf-blades 
linear to linear-lanceolate or narrowly oblong, 5-15 cm. long, acute, attenuate to the su 
sessile base : peduncles ascending, about as long as the leaves or longer: spikes 1-3, cm. 
long, continuous: calyx-lobes linear, 4-5 mm. long, acute: corolla white, pink or pur- 
plish ; lips as long as the tube or longer, the upper one notched, the lower lip with;3 
obtuse lobes: capsules 1.5-2 cm. long, the stipe-like base as long as the body or longer. 
is In marshes and running water, Ontario to Michigan, south to Georgia and Texas. Spring and 
mmer. 
13. CROFTIA Small. 1 
Perennial caulescent shrubby herbs, with gray-pubescent foliage. Leaves opposite: 
blades relativély broad, entire or nearly so. Flowers axillary or disposed in terminal 
spikes axillary to leaf-like bracts or the bracts toward the ends of the spikes much reduced. 
Sepals 5, slender. Corolla 2-lipped, the upper lip entire, the lower 3-lobed, drooping. 
Stamens 2: filaments adnate to the top of the corolla-tube. Ovary 2-celled : styles united : 
stigma 2-lobed. Capsule with a stipe-like base. 
1. Croftia parvifòlia (Torr. ) Small. Perennial by a stout root, finely pilose. 
erect or diffuse, often numerous and tufted, 1-3 dm. long, simple or branching : 
blades ovate, oval or suborbicular, 1-3 cm. long, acute or short acuminate, undulate v 
pand, more or less abruptly contracted in short petioles : spikes interrupted : calyx-lo ; 
linear-subulate, acuminate, 2.5-3 mm. long: corolla white to purple, about 8 mm. pant 
lips about as long as the tube, the upper lip obtuse or retuse, the lobes of the lower 0 
Stems. 
