SCROPHULARIACEAE. 829 



long. Leaves spatulate or cuneate-obcordate, sessile, rounded at the apex, entire, 

 or sparingly denticulate, 6-20 mm. long; peduncles mainly in alternate axils, 

 2-bracteolate at the summit, in fruit longer than the leaves; flowers pale blue, 

 about i cm. long; upper calyx-segment ovate, acute; corolla obscurely 2-lipped; 

 stamens nearly equal; capsule ovoid, acute, shorter than the calyx. On shores 

 near the coast, Md. to Fla., Tex. and Mex. Widely distributed in tropical regions 

 of both the Old World and the New. June-Oct. 



2. Monniera acuminata (Walt.) Kuntze. PURPLE HEDGE-HYSSOP. (I. F. f. 

 3272.) Perennial, glabrous ; stem 3-6 dm. high, very leafy. Leaves oblong or 

 oblong-lanceolate, serrate, short-petioled or sessile, narrowed or cuneate at the 

 base, 2-5 cm. long, faintly veined; peduncles in alternate and opposite axils, in 

 fruit longer than the leaves, not bracteolate at the summit; flowers 10-12 mm. 

 long, purple; upper calyx-segment lanceolate, acute; corolla 2-lipped, the lower 

 lip longer than the upper; stamens approximate in pairs; capsule oblong, 4-valved, 

 6-8 mm. high. In wet soil. Md. and D. C. to Fla. and Tex. Plant blackening in 

 drying. June Sept. 



3. Monniera Caroliniana (Walt.) Kuntze. BLUE HEDGE-HYSSOP. (I. F. f. 

 3273.) Perennial, pubescent, fleshy; stems creeping and ascending, rooting at the 

 lower nodes, 1.5-6 dm. long. Leaves ovate to oval, clasping by a subcordate base, 

 obtuse, parallel-veined, punctate, entire; peduncles usually shorter than the calyx; 

 upper calyx-segment ovate, cordate ; flowers blue, 8-10 mm. long, ephemeral; 

 disk io-i2-toothed; stamens approximate in pairs. In wet pine barrens, N. J. to 

 Fla. and La. March-July. 



4. Monniera rotundifolia Michx. ROUND-LEAVED HEDGE- HYSSOP. (I. F. f. 

 3274.) Perennial by stolons, succulent, creeping and spreading, villous-pubescent, 

 3-6 dm. long. Leaves obovate or orbicular, palmately veined, entire, or slightly 

 undulate, narrowed to a sessile or clasping base, 1-2.5 cm - broad, glabrous; pedun- 

 cles shorter than the leaves, longer than the flowers; flowers blue, 6-8 mm. long; 

 corolla scarcely 2-lipped, longer than the calyx; stamens approximate in pairs; 

 stigma 2-lobed ; disk obsolete ; capsule obtuse, 3 mm. high, at length 4-valved, 

 shorter than the calyx. On muddy shores. 111. to S. Dak., Tenn. and Tex. Also 

 in Cal. June-Sept. 



14. GRATIOLA L. 



Low herbs, with opposite leaves, and yellow or whitish peduncled flowers soli- 

 tary in the axils. Peduncles 2-bracteolate at the summit in the following species. 

 Calyx 5 -parted, the segments narrow, slightly unequal. Corolla 2-lipped; upper 

 lip entire, emarginate, or 2-cleft; lower lip 3-lobed. Perfect stamens 2, the an- 

 terior pair wanting, or rudimentary; filaments filiform; anther-sacs distinct. 

 Style filiform; stigma dilated, slightly 2-lobed. Capsule 4-valved. Seeds numer- 

 ous, striate. [Latin, grace or favor, from its reputed healing properties.] About 

 25 species, of wide distribution. Besides the following, some 7 others occur in 

 southern and western N. Am. 



Plants glabrous or glandular ; anther-sacs transverse, separated. 

 Sterile filaments minute or none. 



Glandular-puberulent ; flowers 8-10 mm. long ; capsule ovoid. 



i. G. Virginiana. 



Glabrous ; flowers 14 mm. long ; capsule globose. 2. G. sphaerocarpa. 



Sterile filaments 2, slender, capitate at the summit. 



Leaves lanceolate, entire or remotely denticulate. 3. G. aurea. 



Leaves ovate or oblong, sharply serrate. 4. G. uiscosa. 



Plant hirsute ; anther-sacs parallel, contiguous. 5. G. pilosa. 



i. Gratiola Virginiana L. CLAMMY HEDGE-HYSSOP. (I. F. f. 3275.) An- 

 nual; stem glandular- puberulent, at least above, 0.7-3 dm. high. Leaves oblong 

 or oblong-lanceolate, sessile, narrowed to both ends, denticulate, 2-5 cm. long, 

 glabrous or nearly so; peduncles slender, glandular; flowers 8-10 mm. long; bract- 

 lets as long as the calyx, or longer; calyx about one-half as long as the yellowish 

 corolla-tube; limb of the corolla short, white; anther-sacs separated by a broad 

 connective; capsule broadly ovoid, 4 mm. high, as long as the calyx. In wet 

 places, Quebec to Br. Col., Mass., Fla., Tex. and Cal. May-Oct. 



