SCEOFHULASIACEjE. (.Flft^T^OBT FAMILY.) 289 



anther-cells transverse and confluent into one. Capsule many-seeded. — Tall 

 herbs, with opposite leaves, and greenish-purple flowers in loose cymes, forming 

 a narrow panicle. 



1. S. nodosa, L- Smooth; stem 4-sided; branches elongated, spreading ; 

 leaves ovate or oblong, or the uppermost lanceolate, acute, serrate, rounded or 

 cordate at the base; flowers small. (S. Marilandica, L.) — Shady banks and 

 thickets, Florida to Mississippi, and northward. Sept. — Stem 2° - 5° high. 



3, CHELONE, Tourn. Snake-head. 



Calyx 5-parted or .5-sepalous, bracted. Corolla inflated-tubular, contracted at 

 the throat, bilabiate ; the upper lip concave, emarginate ; the lower obtusely 

 3-lobed, woolly in the throat. Stamens 4, with the filaments and cordate anthers 

 woolly, and a fifth sterile one shorter than the others. Seeds imbricated, broadly 

 winged. — Smooth perennial herbs, with opposite serrate leaves, and large white 

 or purple flowers in short dense bracted spikes. 



1. C. glabra, L. Stem simple or branched, 4-sided ; leaves lanceolate or 

 oblong, acute or acuminate, on very short petioles ; spike terminal, imbricated, 

 nearly sessile, simple or branched ; bracts and sepals ovate ; corolla white or 

 rose-color. (C. obliqua, L.) — Wet banks of streams, Florida and northward, 

 rare io the lower districts. Sept. — Stem 2° high, Lea,ves 2' - 4' long, some- 

 times pubescent beneath. Corolla 1' - 1 J' long, concave beneath. 



2. C. Lyoni, Pursh. Stem simple or branched; leaves ovate or ovate- 

 oblong, rounded or cordate at the base, acuminatfe, serrate, conspicuously peti- 

 oled, mostly pubescent on the veins beneath ; spike sessile, simple or branched ; 

 bracts and calyx-lobes ovate, ciliate; flowers purple. (C. latifolia, Muhl., leayes 

 acute at the base.) — Mountains of North Carolina. Sept. — Stem 2° - 3° high. 

 Leaves 4' - 6' long, thinner, and the flowers smaller than in the preceding. 



4. PENTSTEMON, L'Her. 



Calyx 5-parted. Corolla inflated-tubular, or somewhat bell-shaped, open at 

 the throat, bilabiate; the upper lip rounded, concave, emarginate or 2-lobed; 

 the lower 3-lobed. Stamens 4, declined at the base, and a fifth sterile one as 

 long as the others, and commonly bearded above. Capsule 2-valved, many- 

 seeded. Seeds wingless. — Erect perennial herbs, with opposite leaves, and 

 white or purple flowers in axillary and terminal cymes, forming a close or open 

 narrow terminal panicle. 



* Leaves pinnately divided. 



1. p, dissectus. Ell. Smooth or minutely pubescent; divisions of the 

 leaves linear, obtuse, entire or sparingly lobed ; cymes few-flowered, long-pedun- 

 cled ; corolla somewhat bell-shaped, with rounded and nearly equal lobes ; an- 

 ther-cells smooth, spreading ; sterile stamen bearded at the apex. — Dry soil in 

 the middle districts of Georgia. — Stem 2° high, slender. Calyn-lobes small, 

 acute. Corolla 9" - 10" long, purple. 

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