SCROPHULARIACE \l . 



Vol. 111. 



i. Sophronanthe pilosa (Michx.) Small. 

 Hairy Hedge Hyssop. Fig. 3789. 



Gratiola fiilosa Michx. Fl. Bor. Am. i : 



1803. 



Sophronanthe pilosa Small, Fl. SE. U. S. 1067. 1 9i' 



Perennial (?), hirsute; stems slender, erect, 

 strict, simple, or branched, 6'-2 high. Leaves 

 ovate or ovate-lanceolate, dentate or denticulate, 

 sessile, acute or obtusish at the apex, rounded, 

 truncate or subeordate at the base, l'-l' long; 

 flowers nearly or quite sessile, commonly numer- 

 ous, about 4" long; corolla purpli>h or white, 

 slightly longer than the calyx and bractlets; 

 sterile filaments 2, capitate at the summit ; anther- 

 sacs of the fertile stamens parallel, contiguous; 

 capsule oblong-conic, acuminate, about the length 

 of the calyx, or shorter. 



In diy soil, southern New Jersey to Florida, Arkan- 

 sas and Texas. May-Aug. 



19. ILYSANTHES Raf. Ann. Nat. 13. 1820. 



Annual or biennial glabrous slender branching herbs, with opposite, mostly dentate and 

 sessile leaves, and small purplish peduncled flowers solitary in the axils. Peduncles not 

 bracteolate. Calyx 5-parted, the segments linear. Corolla irregular, the tube somewhat 

 expanded above, the limb 2-lipped ; upper lip 2-clef t. erect ; lower lip larger, 3-lobed, spread- 

 ing. Fertile stamens 2, included, their anther-sacs divergent ; sterile stamens 2, 2-lobed, one 

 of the lobes capitate, glandular, the other glabrous, shorter. Style slender; stigma slightly 

 2-lobed. Capsule oblong or ovoid, septicidally dehiscent. Seeds numerous, wrinkled. [Greek, 

 mud-flower.] 



About 10 species, of wide geographic distribution. Besides the following, 2 or 3 others occur 

 in the southeastern United States. Type species: Ilysanthes riparia Raf. 



Peduncles longer than the leaves ; calyx-segments shorter than the capsule. 1. /. dubia. 



Peduncles shorter than the leaves ; calyx-segments mostly as long as the capsule, or longer. 



2. /. attenuata. 



i. Ilysanthes dubia (L.) Barnhart. Long-stalked False Pimpernel. Fig. 3790. 



Gratiola dubia L. Sp. PI. 17. 1753. 

 ( 'apraria gratioloides L. Sp. PI. Ed. 2, 876. 1763- 

 Ilysanthes riparia Raf. Ann. Nat. 13. 1820. 

 Ilysanthcs gratioloides Benth. in DC. Prodr. 10: 



419. 1S46. 

 Ilysanthes dubia Barnhart, Bull. Torr. Club 26: 

 '370. 1899. 



Stem slender, mostly erect, at length dif- 

 fusely branched, 3-8' long. Leaves ovate, 

 ovate-oblong, or the lower obovate, sessile or 

 very nearly so, or slightly clasping at the base, 

 remotely denticulate or entire, obtuse or acutish 

 at the apex, thickish, 3-7-nerved, i'-l' long, 

 the upper ones commonly much smaller; pe- 

 duncles slender, considerably exceeding the 

 leaves; flowers 3"-$" long; calyx-segments 

 linear, about one-half the length of the corolla, 

 shorter than the capsule; capsule narrowly 

 ovoid-oblong, bluntish, 2"-3" high ; seeds 1" 

 long, reddish, the ends usually truncate. 



In wet places, Massachusetts to Florida, west 

 to Ontario, Minnesota and Texas. Also on tht- 

 Pacific Coast, and in the West Indies and South 

 America. July-Sept. 



