570 SCROPHTTLARIACE.E. Stemodia. 



10. STEMODIA, Linn. 



Calyx deeply 5-parted ; the divisions narrow and nearly equal. Corolla short ; 

 the upper lip 2-lobed ; the lower 3-parted. Stamens 4, included : cells of the an- 

 thers separated and even short-stalked. Stigma 2-lobed. Capsule short, septicidal 

 and the valves at length 2-parted : the placenta left in the axis. Seeds numerous. 



— Viscid-pubescent herbs, chiefly tropical, with opposite or whorled leaves, and 

 solitary flowers in their axils ; these sometimes becoming spicate or racemose at the 

 summit of the stems : a pair of bractlets at the base of the calyx. 



1. S. durantifolia, Swartz. Erect, a span to a foot high: leaves lanceolate, 

 sharply serrate, mostly narrowed below and then with a dilated partly clasping 

 base : flowers sessile : corolla purplish, a quarter of an inch long. — S. verticillaris, 

 Link ; Eeichenb. Ic. Exot. ii. t. 149. 

 Wet grounds : southern borders of the State, Coulter, Palmer. Extends to S. America. 



11. GRATIOLA, Linn. Hedge-Hyssop. 



Calyx 5-parted ; the divisions narrow and hardly unequal. Corolla with upper 



lip entire or 2-lobed ; lower one 3-cleft. Stamens included, only 2 fertile ; their 



anthers with 2 transverse cells on a broad connective ; the anterior pair reduced to 



simple sterile filaments or wanting. Style commonly bent at the tip : stigma of 2 



flat lobes or lips. Capsule many-seeded, 4-valved, leaving the thick placenta in the 



axis. — Low and branching herbs ; with opposite sessile leaves, and small solitary 



flowers on simple naked peduncles in their axils, with or without a pair of bractlets 



under the calyx : flowering in summer ; the corolla in ours whitish and yellowish. 



A genus of about 20 species, widely distributed over the world, mainly in temperate climates, 

 inhabiting wet places. 



1. Gr. Virginiana, Linn. Minutely viscid-puberulent, a span high, diffuse: 

 leaves lanceolate, sparingly serrate, mostly narrower below : peduncles equalling or 

 surpassing the leaves : a pair of conspicuous bractlets at the base of the calyx : 

 corolla (4 lines long) twice the length of the calyx : capsule ovate. 



In the Sierra Nevada, Plumas Co., &c. (Lcmmon) ; thence through Oregon to the Atlantic States. 



2. G-. ebracteata, Benth. Lower and more erect, glabrous, obscurely viscid : 

 leaves lanceolate, acute, oftener entire : no bractlets to the calyx, which about equals 

 the small corolla : calyx globose. — DC. Prodr. x. 595. 



Northern part of the State (Ukiah, Bolander), and in Oregon. Root annual. 



12. ILYSANTHES, Eaf. 



Calyx 5-parted ; the divisions narrow and nearly equal. Corolla with a short and 

 erect 2-lobed upper lip ; the larger lower one 3-cleft and spreading. Stamens only 

 2 fertile, included, with 2-celled anthers ; the anterior pair sterile, inserted high up 

 on the throat of the corolla, consisting each of an unequally 2-lobed filament ; the 

 shorter lobe smooth and tooth-like, the longer one glandular. Style straight : stigma 

 of two small flat lobes or lips. Capsule small, many-seeded, 2-valved j the edges of 

 the valves separating from the partition, which is left with the undivided placenta. 



— Small and low annuals, glabrous ; with opposite sessile leaves, and solitary 

 1 -flowered filiform and naked peduncles in their axils, the upper becoming racemose 

 by the reduction of the subtending leaves to bracts. Flowering all summer. 



A genus of several species, distributed over the world in the manner of Graliola. 



