Order 86.— SCROPHULABIACE^. 523 



6 M. moBcMtns Doug. Musk Plant. Decumbent, hairy and viscid, Ivs. 

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

 f Oregon. 



15. CONO^BEA, Aublet Calyx 5-parted, equal ; upper lip of tbe 

 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 oo, ovoid. — American 

 branching herbs, with opposite Ivs. Ped. axillary, solitary or in paiis=, 

 1-flowered, 2 bracteoles near apex. 



C. multlfida Benth. Low, diffusely branched, puberulent; Ivs. petiolate, piij- 

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

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

 mon, Ohio to La. A plant 4 — 6' 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 IJ" long. Jl. (Cap- 

 raria, Mx.) 



16. HERPES'TIS, Qsert. (Gr. ipTTrjarrig, a creeper.) Calyx 6-parted, 

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

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

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

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

 mous, often with 2 bracteoles near the calyx. 



§ Flowers yellow, corollft 4-cleft, upper segment (lip) entire. Plant erect No. i 



§ Flowers blue. — Corolla 4-cleft, upper segment (lip) emarginate Noa. 3, S 



— Corolla O-cleft, lobes nearly equal , Leaves crenate No. 4 



1 H. nigrescens Benth. Tall ; Ivs. oblong, crenate-serrate, cuneate at base, ob- 

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

 lobe of the calyx oblong-obtusish. — % Car. to Fla. and Li "Wet. Plant 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. orUcular-obovate, en- 

 tire, glabrous, many-veined ; pedicels ebraoteate, 1 — 3-together, 2 or 3 times longer 

 than the calyx; lower cal. seg. ovate ; cor. J longer than the calyx. — 1[ A prostrate 

 mud plant, in ponds. 111. (Mead) to La. (Hale.) Stem If in length. Leaves (5 — 

 12" diam., about 9-veinecl, sessile. Peduncles thick, half as long as the leaves. 

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



3 H. ample^caMis 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- 

 toothed at apex. — Swamps and ditches, N. J. to La. (Halo.) A few uichea io 

 length, with leaves 6 to 8" long. Fls. nearly 6" long. Sty. dilated at the end. 

 Aug. 



4 H. MonniSra Humboldt. Glabrous, fleshy, prostrate; Ivs. cuneate-obovate, 

 obscurely crenate or entire, 1 to 3-veined ; ped. as long as the lvs. ; cal. sub- 

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

 inundated banks, Penn. to (ja. and La. Lvs. 6 to 8" long, obscurely veined, ses- 

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

 pale blue, on ped. 6 to 12" long. Aug. (H. cuneifoha Ph.) 



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

 its medicinal virtues.) Calyx 6-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-ceIled, 4-valved, valves inflexed 



