Order 86.— SCROPHULAltlACEyE. 523 



6 M. moschatus Doug. Musk Plant. Decumbent, hairy and viscid, lvs. 

 ovate, acute, dentate, feather-veined ; ped. about as long as the leaf; cal. teeth 

 lanceolate, acuminate, unequal. — % Herb rooting at the joints, a foot long. Cor. 

 tube exceeding the calyx, yellow. The plant exhales the odor of musk. 

 ■\ Oregon. 



15. CONOBEA, Aublct. Calyx 5-parted, equal ; upper lip of the 

 corolla 2-lobed, lower lip 3-parted ; fertile sta. 4 ; anth. approximating 

 by pairs, cells parallel ; caps, globous, ovoid, valves breaking away 

 from the placentiferous dissepiment ; seeds co, ovoid. — American 

 branching herbs, with opposite lvs. Ped- axillary, solitary or in pairs, 

 1 -flowered, 2 bracteoles near apex. 



C. nmltifida Benth. Low, diffusely branched, pubcrulent; lvs. petiolate, pin- 

 nately dissected ; segments linear or cuneate, lobed or entire, obtuse ; cor. lobes 

 entire ■; caps, ovoid, valves at length 2-parted. — (I) Sandy banks of rivers, com- 

 mon, Ohio to La. A plant 4 — G' high, with finely divided leaves, and of a gray- 

 ish aspect. Leaves 1' long, in 5 or 7 segments, the petiole as long as the flowers. 

 Corolla greenish, hardly exceeding the calyx. Capsule l£" long. Jl. (Cap- 

 raria, Mx.) 



16. HERPESTIS, Gaert. (Gr. tpnrjcr^ a creeper.) Calyx 5-parted, 

 unequal ; cor. subbilabiate, upper lip emarginate or 2-lobed, lower 3- 

 Jobed; sta. 4, didynamous, parallel; caps. 2-furrowed, 2-celled, valves 

 parallel with the dissepiment, the margins inflexed ; seeds co, small. — 

 Obscure weeds with opposite lvs. Ped. 1-flowered, axillary, or subrace- 

 raous, often with 2 bracteoles near the calyx. 



§ Flowers yellow, corolla 4-cleft, upper segment (lip) entire. Plant erect No. "I 



j Flowers blue.— Corolla 4-elel't, upper segment (lip) emarginate Nos. 2, 'A 



— Corolla 5-cleft, lobes nearly equal. Leaves erenate No. 4 



2. H. nigrescens Benth. Tall ; lvs, oblong, crenate-serratc, cuneate at base, ob- 

 tuse or acute; ped. bractless, equaling or exceeding the leaves- the posterior 

 lobo of the calyx oblong-obtusish. — % Car. to Fla. and La. Wet. riant 1 to 2f 

 high, often branched. Lvs. 1 to 2' long, thick, obscurely feather-veined, the up- 

 per shorter than the (1') pedicels. Cor. yellow, rather longer (5") than the calyx 

 (4"). Aug, Sept (Gratiola acuminata Walt.) — Blackens in drying. 



2 H. rotundifolia Ph. St. mostly glabrous, creeping ; lvs. orbicular-obomt&, en- 

 tire, glabrous, many-veiued; pedicels ebracteate, 1 — 3-togetker, 2 or 3 times longer 

 ihan the calyx.; loiver cal. seg. ovate; cor. % longer than the calyx. — If A prostrate 

 mud plant, in ponds, I1L (Mead) to La. (Hale.) Stem If in length. Leaves 6 — 

 12"diam., about S-veined, sessile. Peduncles thick, half as long as the leaves. 

 Calyx 2 — 3" in lengtlL Flowers blue. Aug. 



3 H. amplexicaulis Ph. St. floating, woolly; lvs. amplexicaul, ovate, obtuse, 

 entire, many -veined, glabrous above; ped. solitary, shorter than the calyx; cal 

 lower segm. cordate; cor. -J- longer than the calyx; hypogynous disk long, 10- 

 ioothed at apex. — Swamps and ditches, N. J. to La. (Hale.) A few inches in 

 leugth, with leaves G to 8" long. Fls. nearly 5" long. Sty. dilated at the end. 

 Aug. 



4 H. Monniera Humboldt Glabrous, fleshy, prostrate ; lvs. cuneate-obovate, 

 obscurely erenate or entire, lto3-veined; ped. as long as the lvs.; cal. sub- 

 tended by 2 linear bractlets, its 3 outer segm. ovate. — % An obscure weed, on 

 inundated banks, Perm, to Ga. and La, Lvs. G to 8" long, obscurely veined, ses- 



. sile, or the lower contracted to a short petiole. Fls. few, cor. spreading 3 to 4", 

 pale blue, on ped. G to 12" long. Aug. (PL cuneifolia Ph.) 



17. GRATFOLA, Hedge Hyssop. (Lat gratia, favor; alluding to 

 its medicinal virtues.) Calyx 5-parted, subequal ; cor. upper lip entire 

 or slightly bifid, lower trifid, the palate not prominent ; sta. 2, fertile, 

 mostly with 3 sterile filaments; caps. 2-celled, 4-valved, valves inflexed 



