294 SCKOrnULARIACK.K. (riGAVORT FAMILY.) 



9. ILYSANTHES, Kaf. 



Calyx 5-partc(l, bractlcss. Corolla bilabiate ; the upper lip short, erect, 

 2-deft ; tlic lower larger, sjjreatliiig, 3-cleft. Fertile stauuiis 2, iiieludcd ; tho 

 two anterior ones sterile, 2-lol)ed, with one of the lobes tip]ieil witli a gland, the 

 other smooth, aeute. Capsule ovate or oblong, as long a^ ih;- calvx. — Sniooih 

 annuals, growing in wet or muddy places. Stems 4-an;;l( d. Leaves opjiosite. 

 Peduncles axillary, often reflexed in fruit. Flowers small, puriilisli. 



1. I. grandiflora, Bcnih. Stem creeping, very leafy ; leaves roundish, 

 entire, nerveless, partly clasping ; peduncles 2-3 times as long as the leaves ; 

 sterile stamens lobed at the middle. — In Georgia, Niitlull. — Leaves 3" - 4" 

 long. Corolla larger than in the next. 



2. I. gratioloides, Bcnth. Stem erect, at length dilTusely branched ; 

 leaves lanceolate, oblong, or ovate ; the lowest narrowed into a petiole, the 

 upper sessile, acute, obscurely toothed or entire ; lower peduncles mostly shorter 

 than the leaves, the upper much longer, spreading ; corolla pale blue, twice as 

 long as tho calyx ; capsule oblong, acute, scarcely longer than the calyx. 

 (Lindernia dilatata and attenuata. Ell. Gratiola anagallidea, M'clix. G. tctra- 

 gona, Ell.?} — Springs and rivulets, common. May -Sept. — Stem 6'- 12' 

 long. Leaves |'- 1 ' long. Corolla 3" - 4" long. 



3. I. refracta, Benth. Stem erect, very slender, forking ; radical leaves 

 tufted, oblong, obtuse, entire, naiTowed at the base ; the otiicrs remote, small, 

 lanceolate, sessile ; peduncles filiform, many times longer than the leaves, rc- 

 fle.xed in fruit ; corolla pale blue variegated with purple ; capsule oblong-linear, 

 twice as long as the calyx. (Lindernia monticola, Niitl.) — Springs and muddy 

 banks of rivulets in the middle and ujjper districts, Mississi])pi to North Caro- 

 lina. July -Sept. — Stem 6'- 12' high. Radical leaves 1' long. Corolla 

 3" -4" long. 



4. I. saxicola. Stems clustered, leafy, simple or sparingly branched ; 

 leaves oblong, entire, obtuse, sessile ; the radical ones densely tufted, narrowed 

 into a petiole ; peduncles rather stout, 3-4 times as long as the leaves, widely 

 spreading or reflexed in fruit ; corolla blue, variegated ; capsule ovoid, rather 

 longer than the calyx. (Lindernia saxicola, M. A- Curtis.) — On rocks at 

 Tolula Falls, Georgia, and Cherokee, North Carolina, Ctnlis. Aug. 1]. ^ — 

 Stems 3' - 5' high. Stem-leaves 2" - 4" long. Corolla.4" long. 



10. MICRANTHEMUM, Michx. 



Calyx 4-parted, or 4-cK'ft. Corolla somewhnt bilal)iate ; the upper lip 

 shorter, entire ; the lower 3-lobed, with the middle lolie longer. Siamcns 2, 

 included ; the filaments with a gland-like appendage at the base : anther-cells 

 diverging. Style short : stigma capitate. Cajisule 2-valved, few-seeded ; tho 

 delicate partition vanishing at maturity. Seeds oblong, reticulate. — A small 

 smooth perennial herb, with dilfnse creeping stems, roundish opj>osito entire 

 leaves, and minute nearly sessile axillary white flowers. 



