| Yong. 
304 ACANTHACEJ. (ACANTHUS FAMILY.) © 
6. D. strepens, Nees. Smooth, pubescent, or hairy ; leaves varying from 
lanceolate to orbicular, mostly narrowed into a petiole; flowers sessile or pedun- jd 
cled ; tube of the corolla barely longer than the linear or linear-lanceolate hairy 
calyx-lobes, and about the length of the funnel-shaped throat; capsule smooth. 
(Ruellia strepens, Z.) — Dry rich soil, Florida, and northward. June -Sept.— 
Stem 2/+3° high. Leaves l'-4'long. Corolla 1/— 2! long, blue or purple. A 
polymorphous species. Later flowers sometimes fruiting in the bud. 
7. D. noctiflorus, Nees. Closely pubescent; stem simple, rigid; leaves 
oblong or lanceolate, sessile, entire or slightly toothed ; flowers solitary, pedun- 
cled; corolla large; the elongated tube twice as long as the linear hairy calyx- 
lobes; capsule pubescent. — Low grassy pine barrens, Florida, Georgia, and 
westward. July and Aug.— Stem 1° high. Corolla 2!—4! Jong, white. 
3. DIANTHERA, Gronov. 
Calyx 5-parted. Corolla bilabiate; the upper lip emarginate; the lower 9- 
lobed, rugose or veiny in the middle, spreading. Stamens 2: anther-cells sep- 
arated, one placed lower down than the other. Stigma simple, acute. Capsule 
flattened, narrowed downward, bearing the seeds above the middle. 
mostly 4, supported by the appendages of the placentz.— Perennial smooth 
herbs, with opposite entire leaves, and short-bracted mostly alternate flowers m 
long-peduncled axillary spikes. : 
1. D. Americana, L. Stem tall, angled ; leaves long, linear-lanceolate ; 
spikes oblong, dense or somewhat capitate, on peduncles as long as the leaves. 
(Justicia ensiformis, Ell.? J. pedunculosa, Michx.) — In slow-flowing streams, 
South Carolina, and northward. July and Aug. — Stem 29 high. Leaves and 
peduncles 4'—6' long. Spike }/ long. Flowers pale purple. 
2. D. ovata, Walt. Stem low (4' - 8 high), 4-angled ; leaves ovate-lance 
olate, rather acute, narrowed into a short petiole; the lowest small, lanceolate 
spikes 3 -4-flowered, on simple peduncles shorter than the leaves ; corolla 
pale purple, the lower lip striped with deeper lines. (Justicia humilis, Mich) — 
Muddy banks of streams, Florida to South Carolina. — Leaves 2'-4' 1008, 
1! -13! wide. ; 
Var. lanceolata. Stem taller (19 - 139) ; leaves smaller, lanceolate, 8t 
minate, nearly sessile; peduncles longer than the leaves ; spikes many-flo 
1-sided, often branching. — River-banks, Florida. July. 
Var.? angusta. Leaves linear or linear-lanceolate, reflexed, the lower yen 
very remote; peduncles as long as the leaves; spikes several-flow jo 
lower flowers often opposite. — Pine-barren ponds, Florida. May. — Stem E. 
high. Leaves 1'-2'long. Corolla 4" — 5" long. EET 
.9. D. crassifolia, n. sp. Stem rigid, angled; leaves fleshy, linear, chat 
nelled, acute ; the lower distant, small and obtuse; peduncles stout, erect bright a 
than the leaves, exceeding the stem; spike few-flowered; corolla large "7. 
smooth. — Wet pine barrens, Apalachicola, Florida. April and May.— 8 7. 
6-12 high. Leaves 4/-6/long. Peduncles 4'- 9' long. Corolla and cap* 
