240 SCKOPIIULARIACEiE. 



11. -HBRPB8TIS, Gfcrt. 



Gr. herpetics, a creeper; from the prostrate habit of the plants. 



Calyx 5-parted, unequal. Corolla bilaliate ; tipper 

 fy) notched or 2-lobed; the lower 3-lobed. Stamens 4, 

 didynamous. Style concave, dilated or 2-lobcd at the 

 apex. Seeds small, numerous. — Prostrate or creeping 

 herbs, with opposite leaves and inconspicuous solitary or 

 subracemose /lowers. 



1. II. Monnieria, Humboldt. Wedge-leaved Serpestes. 



• Smooth, fle.-hy, prostrate; leaves wedgc-obovate, entire or obscurely cremate near 

 the summit ; pedicels as long as the leaves, with 2 bracteoles near the calyx ; calyx 

 segments ovate. Per. 



Inundated banks. Aug. Leaves opposite, thick, somewhat clasping, variable in 

 f-i;-.e and form. Flowers very small, p'ale purple, on peduncles about as long ad the 

 leaves. 



2. H. micrantiia, Pursh. 



Smooth, prostrate; leaves oval, entire, sessile or clasping, obscurely many-ve:nr<] ; 

 pedicels ebractoate, nearly as long as the leaves ; corolla scarcely longer than the 

 calyx. 



Border of pools and rivers. Aug. A minute weed, 2 to 4 inches in length. 

 Leaves about ]^ inch long, 5 to 7-veiued. Flowers very small, blue. 



12. GRATIOLA, Linn. Hedge-Hystjp. 



Name from gratis, grace or favor; on account of its supposed excellent medicinal 

 properties. 



Calyx 5-parted ; the divisions narrow and nearly equal. 

 Corolla tubular subbilabiatc; upper lip entire or 2-cleft, 

 the lower 3-cleft. Stamens 4, 2 sterile or wanting. Style 

 dilated or 2-lippcd at the apex. Capsule ovate, 4-valved, 

 many-seeded. — Low mostly branched and diffuse herbs, with 

 opposite sessile leaves, and axillary 1- flowered peduncles, 

 usually with 2 bractlets at the base of the calyx. 



1. G. VlRGlNlANA, L. Common Iledge-IIysnp. 



Smooth or nearly so ; leaves lanceolate, slightly serrate, narrowed at the base ; 

 peduncles longer than the leaves; calyx segments linear-lanceolate, equal ; sUrilc 

 frhamcnls nearly ; wanting. Ann, 



■Wot places; common. July, Aug. Plant 4 to G fnthee high. I ranched at la^e. 

 Leaves 1 to 2 inches long, and J^ as*wide, sessile. CbrcMa whitish, the tnon pale 

 yellow, often tinged with purple," scarcely x /, inch long. L\dyx with 2 linear-lauce- 

 olate bracts, which are rather longer than the sepals. 



2. G. megalocarpa, Ell. Largepoirited Iledge-ITymp. 



Leaves lanceolate, serrate, pubescent ; petluncks opposite, longer than the leaves ; 

 ealyx segments linear, as-long as the globose capsule. (G. acuminata of Pursh.) 

 Tor. 



Ditches and pools. July,. Aug. Flowers pale-yellow, large. Captuk larger that 

 in any ether species. 



