SCROPHULARIACEAE (FIG^yORT FAMILY) 725 



12. LIMOSELLA L. Mudwort 



Calyx bell-shaped. Anthers confluently 1-celled. Style short, club-shaped. 

 Capsule globular, many-seeded ; the partition thin and vanishing. — Small an- 

 nuals, growing in mud, usually near the seashore, creeping by slender runners, 

 without ascending stems ; the entire fleshy leaves in dense clusters around the 

 simple 1-flowered naked peduncles. Flowers small, white or purplish. (Name 

 from limus, mud, and selM. seat.) 



1. L. aquatica L., var. tenuifblia (Wolf) Pers. Leaves with no blade distinct 

 from the petiole, awl-shaped or thread-form. (L. temdfoUa Wolf. ) — Bracki-sh 

 river-banks and shores, Lab. to N. J., and far n. and w\, local. (Eurasia, etc.) 



13. MICRANTHEMUM Michx. 



Stamens anterior, the short filaments with a glandular (mostly basal) appen- 

 dage ; anthers 2-celled, didymous. Style short ; the stigma 2-lobed. Capsule 

 globular, thin, with an evanescent partition, several-many-seeded. — Small 

 smooth depressed and tufted or creeping annuals, in mud or shallow water, 

 with opposite and entire rounded or spatulate sessile leaves, and minute white 

 or purplish flowers solitaiy in the axils of some of the middle leaves (usually 

 one axil floriferous, that of the other leaf sterile). (Name formed of ^it/cpos, 

 small, and dvdefxov, Jfoirer.) 



1, M. micranthemoides (Nutt.) Wettst. Branches ascending, 1-6 cm. high ; 

 leaves obovate-spatulate or oval ; peduncles at length recurved, about the length 

 of the calyx which is bell-shaped, 4-toothed, and usually split down on one side, 

 in fruit becoming pear-shaped ; middle lobe of the corolla linear-oblong, nearly 

 twice the length of the lateral ones ; appendage of the stamen nearly as long as 

 the filament itself; stigmas subulate. (Jf. Nuttallii Gray.) — Tidal mud of 

 rivers, N. J. to Fla. Aug. -Oct. 



14. ILYSANTHES Raf. False Pimpernel 



Upper lip of corolla short, erect, 2-lobed ; lower larger and spreading, 3-cleft. 

 Fertile stamens 2, included, posterior ; anterior pair sterile, inserted in the 

 throat, 2-lobed ; one of the lobes glandular, the other smooth, usually short and 

 tooth-like. Stigma 2-lobed. Capsule ovoid or ellipsoid, many-seeded. — Small 

 and smooth annuals ; the purplish flowers on filiform peduncles, or the upper 

 racemed, produced all summer. (Name from i\vs, mud, or mire, and dpdos, 

 flower. ) 



1. I. dubia (L.) Barnhart. Much branched, spreading ; stems 1-3 dm. long, 

 at first simple, erect, leafy ; leaves ovate, rounded, or oblong, usually crenate- 

 toothed, mostl}^ 1.8-^3 cm. long, the upper partly clasping, the lower more or 

 less narrowed at the base ; lower peduncles about as loufj as the subtending leaves 

 or shorter ; calyx-lobes linear, about equaling or slightly exceeding the ellipsoidal 

 pod; corolla 5-10 mm. long. (7. riparia Man. ed. 6. in part, and perhaps of 

 Raf.; L attemiata Small.) — Wet places, N. B., westw. and southw., common. 

 (Adv. in France.) 



2. I. anagallidea (Michx.) Robinson. More slender, diffuse, and usually 

 smaller-leaved ; leaves elliptic to ovate, commonly entire or nearly so, 3-20 

 (mostly about 10) mm. long; peduncles long and filiform, spreading-ascending, 

 eve7i the lower ones much exceeding the subtending leaves; calyx-lobes somewhat 

 shorter than the pod; corolla as in the preceding. {Gratiola Michx,; I. dubia 

 of Am. auth.. not Gratiola dubia L.; I. riparia Raf.?) — Wet places, e. Mass., 

 southw, and westw,, frequent. 



15. GRATIOLA L. Hedge Hyssop 



Narrow divisions of calyx nearly equal. Upper lip of corolla entire or 2-cleft, 

 lower 3-cleft. Style dilated or 2-lipped at apex. Cap.sule 4-valved, many-seeded. 

 — Low herbs, mostly perennials, some apparently annuals, with sessile leaves, 



