Obdeb 86.— SOROPHULARIACBvE. 625 



1 1. gratiolo!des Benth. Glabrous, ascending, much, hranched; Ivs. ovate or 

 oblong, obtusish, Bubdentate, lower attenuated to a petiole; cor. erect, twice 

 longer than tlio calyx, on' braotless peduncles ; sterile fil. bearing the glabroug, 

 acute lobe below the middle. — J) Can. and U. S. in wet places. A low, Incoa- 

 spicuous plant, 3 — 6 or 8' high. Leaves 5 — 8" long, sometimes mostly sessile, 

 commonly the lower distinctly petiolate. Corolla bluish-white, much exserted, B" 

 long. Jl., Aug. — (L. dilatata and attenuata Muhl.) 



2 I. refrdcta Benth. Slender, smooth, erect ; mostly subradical, oval-oblong and 

 spatulate, cauline few, small and remote, lance-linear ; ped. filiform, subterminal, 

 few, deflected after flowering ; cor. tube 4 times longer than the linear sepals. — U 

 Damp pine-woods, N. Car. to Ga. (Slettauer, near Macon). St. 6 to 10' high, 

 sparingly branched. Lower Ivs. 7 to 9" long, cauline 1 to 5" Fls. 5" long, 

 %ht blue. Jn. 



3 I. grandifldra Benth. Smooth, creeping, diffuse; Ivs. thick, orbicular, entire, 

 subclasping, veinless ; ped. very hairy ; sterile fil. 2 ; partly exserted, lobe-bear- 

 ing in the middle, thickened at the end. — 2f Ga. (between Sayannah and Au- 

 gusta, Nutt.) in sandy swamps. Lvs. 3 to 4" diam. Ped. 1' long, cor. 6", violet 

 blue. 



19. MICRAN'THEWUM, Rich. (Gr./itKpof, small, av0of, flower; such 

 is its character.) Calyx 4-toothed or cleft ; corolla upper lip shorter, 

 entire, lower trifid ; stamens 2 fertile, a glandular scale at the base of 

 each, sterile filament none ; style short, apex clavate or spatulate, en- 

 tire ; capsule 2-valved.— (i) Slender, glabrous, creeping, with opposite 

 lvs. and minute flowers. 



S Calyx deeply cleft, segments longer than tlio unequal corolla lips Ko. 1 



§ Calyx merely toothetl, segments shorter than the very unequal corolla lips No. 3 



1 M orbiouldttim Mx. Lvs. orbicular or roundish-obovate, obscurely 3-veined, 

 entire, contracted to a very short petiole; fls. solitary, axillary, much shorter than 

 the leaves and on pedicels shorter than the calyx. — N. Oar. to Pla. and La., com- 

 mon, in mud or shallow water. Sts. diffuse, fiiforin. Lvs. often crowded, 2 to 4'' 

 long, 2 to 3" wide. Fls. globular, less than 1" long, white. All summer. (M. 

 emarginatum Ell.) 



2 M. micrantha. Jjvs. roundish, ovate, crowded, sessile, obscurely 3-veined ; fls. 

 sessile, axillary, very minute. — Inundated banks of rivers, Delaware to the Ogee- 

 chee, probably not common. Plant a few inches long, branched. Fls. white, the 

 middle segm. of the lower lip largest and spreading. Sept., Oct. (Herpestis 

 micrantha Ell. Hemianthus micranthemoides Nutt.) 



20. AffiPHIAKTHUS, Torr. (Gr. a|U(/)a), both or twain, avOo? ; allu- 

 ding to its two-fold inflorescence.) Calyx 6-parted ; corolla small, fun- 

 nel form, limb 4-lobed, lower lobe larger, stamens 2, included ; anthers 

 2-celled ; stylo lightly bifid, lobes acute ; capsule obcordate, compressed, 

 valves septiforous in the middle; seeds numerous. — (D Acaulescent, 

 minute, with fls. both sessile and on scapes. 



A. pusilluB Torr. On wet rooks; Newton Co., Ga. (Leavenworth). A minute 

 herb, with tlio lvs. nearly radical, linear, obtuse, entire, 1 to 2" long. Fls. white, 

 hardly 1" long, some sessile among the leaves, others on simple, filiform pedun- 

 cles 1' long. Mar., Apr. 



21. LIMOSEL'LA, L. Mudwort. (Lat. Umus, mud ; its locality.) 

 Calyx 5-cleft ; corolla shortly campanulate, 5-cleft, equal ; stamens ap- 

 proximating in pairs; capsule partly 2-celIed, 2-valved, many-seeded. — 

 Minute aquatic herbs. Scape 1-flowered. 



Ii. tenuifolia Nutt. Acaulescent; lvs. linear, scarcely distinct from the petiole ; 

 scape as long as the leaves; cor. segments oval-oblong, shorter than the calyx. — 

 (D E. I., Mass., N. Y., Penn. A minute plant, an inch in height, growing on 

 the muddy banks cf rivers. Leaves ^nd flower-stalks radical. Flowers very 

 small, blue and white. Aug. 



