ACANTHACE.E, (ACAXTHUS FAMILY.) 365 



4. CALOPHANES, (Don.) 



Calyx lobes setaceous. Corolla funDel-shaped, regular, or 2-lipped. Autlier 

 cells mucronate at the base. Capsule 2-4-seecled. Otherwise like the pre- 

 cediug. — Fereiiuial erect herbs from a creeping base. 



1. C. oblongifolia, Don. Pubescent and somewhat hoary; stem 4- 

 angled, simple ov s])aringly branched; leaves nearly sessile, oval or obovate, 

 obtuse, the upper narrower and often acute; flowers solitary or 2-3 in a 

 cluster ; calyx lobes subulate-setaceous, as long as the oblong bracts and tube 

 of the spotted purple corolla. — Dry sandy pine barrens. June -August. — 

 Stem 6'- 12' high. Leaves i' -I' long. Corolla T long. 



Var. angUSta, Gray. Smaller (6' high), rough-pubescent, diffuse, very 

 leafy; leaves obloug-linear, 4" -6" long; flowers smaller. — South Florida. 



2. C. humistrata, Nees. Stem minutely pubescent, simple ; leaves 

 smooth, membranaceous, oblong, obtuse, slightly crenate, tapering into a slen- 

 der petiole ; flowers clustered, sessile ; calyx lobes subulate-setaceous, shorter 

 than tlie spatulate-oblong bracts ; corolla white. — Shady banks, Georgia and 

 Florida. June -July. — Stems ^°-li° high. Leaves |' - 1-J' long. Corolla 

 ¥ long. 



5. STENANDRIUM, Nees. 



Calyx 5-parted. Corolla salver-form, equally 5-lobed. Stamens 4 : anthers 

 1-celled. Stigma truncate. Cells of the ovary 2ovuled. — Low perennial 

 herbs, with a scape-like stem, clustered radical leaves, and purplish flowers in 

 a terminal spike. 



1. S. dulce, Nees. Smooth or hirsute ; leaves oval or oblong, long-peti- 

 oled ; spike capitate, few-flowered, the bracts ciliate ; tube of the corolla longer 

 than the calyx ; capsule club-shaped. — South Florida. — Scape 6' high. 

 Leaves l'-3' long. Corolla |' wide. 



6. GATESIA, Gray. 



Calyx 5-parted, the lobes subulate. Corolla^ salver-shaped, 5-lobed. Sta- 

 mens 2. Anther cells alike, one lower and oblique. Stigma capitate. Cap- 

 sule 2-4-seeded. 



1. G. Isetevirens, Gray. Stem tomento.se, mostly simjde ; leaves ovate- 

 lanceolate, acuminate, tapering into a petiole; the lower smaller and obtuse; 

 spikes axillary and terminal, short-peduncled, leafy at the base, compact, few- 

 flowered ; bracts oblong, ciliate ; capsule oval, 4-seeded. — Shady banks, Geor- 

 gia, Florida, and westward. June- Sept. — Stem 5° -2° high. Leaves 2' -4' 

 long. Corolla 4" -5" long, white. 



7. DIANTHERA, Gronov. 



Calyx 5-parted. Corolla bilabiate; the upper lip emarginate; the lower 

 3-lobed, rugo.se or veiny in the middle, spreading. Stamens 2 : anther cells 

 separated, one lower than the other. Stigma simple, acute. Capsule flat- 

 tened, narrowed downward, bearing the seeds above the middle. Seeds 

 mostly 4, supported by the appendages of the placentae. — Perennial smooth 



