SCEOPHULAEIACEuE. (PIGWORT FAMILY.) 329 



calyx ovate, inflated in fruit, the upper tooth much the largest — In cool springs, 

 N. Michigan, Wiseonsin, Illinois, and westward. — Flowers small, little larger 

 than in the cultivated M. moschatds or Musk-Plant. 



9. CONOBEA, Aublet. {CafbIsia, Michx.) 



Calyx 5-parted, equal. Upper lip of the corolla 3-lobed, the lower 3-parted. 

 Stamens 4, fertile : anthers approximate. Style 2-lobed at the apex, the lobes 

 wedge-form. Seeds numerous. — Low branching herbs, with opposite leaves, 

 and small solitary flowers on axillary 2-bractleted peduncles. (Name unex- 

 plained.) 



1. C. multlfida:, Benth. Diffusely spreading, much branched, minutely 

 pubescent, annual; leaves petioled, pinnately parted, divisions linear-wedge- 

 shaped j corolla (greenish-white) scarcely longer than the calyx. — Eiver-banks, 

 Ohio to Illinois, and southward ; also adventive below Philadelphia. July - Sept. 



10. HEEPl^STIS, Gasrtn. Hekpestis. 



Calyx 3-parted ; the upper division broadest, the innermost often very narrow. 

 Upper lip of the corolla entire, notched or 2-cleft ; the lower 3-lobed. Stamens 

 4, all fertile. Style dilated or 2-lobed at the apex. Seeds numerous. — Low 

 herbs, with opposite leaves, and solitary axillary flowers; in summer; ours 

 rather succulent perennials. (Name from epmjorijr, a creeping thing, the species 

 being chiefly procumbent.) 



* Upper lip of the blue corolla merely notched: leaves muny-nerved. 



1 . H. rotundifblia., Pursh. Nearly smooth, creeping ; leaves round-ohovate, 

 half clasping (^'-1' long); peduncles twice or thrice the length of the calyx, the upper 

 sepal ovate. — Wet places, Illinois and southward. 



2. H. amplexicatllis, Pursh. Stems hairy, creeping at the base ; leaves 

 ovate, clasping; peduncles shorter than the calyx; upper sepal heartshaped. — Wet 

 places. New Jersey and southward. — Aromatic when bruised. 



» « Corolla {bluish) almost equaMy 5-deft, the upper lip being 2-parted: calyx 2- 

 bracted: stamens almost equal : leaves nearly nerveless. 



3. H. Monni^ra, H. B. K. Smooth, somewhat creeping ; leaves obovate 

 or wedge-shaped. — Mainland and southward along the coast. 



H. GE ATI Oil A, L. Hedge-Hyssop. 



Calyx 5-parted, the divisions narrow and nearly equal. Upper lip of the co- 

 rolla entire or 2-cleft, the lower 3-cleft. Fertile stamens 2, included, posterior ; 

 the anterior mere stei-ile filaments, or wanting. Style dilated or 2-lipped at the 

 apex. Pod 4-valved, many-seeded. — Low herbs, mostly perennials, some appar- 

 ently annuals, with opposite sessile leaves, and axillary 1 -flowered peduncles, 

 usually with 2 bractlets at the base of the calyx. Flowering all summer ; all 

 inhabiting wet or damp places. (Name from gratia, grace or favor, on account 

 of supposed excellent medicinal properties.) 



§ 1. Anthers with a broad connective: the cells transverse: stems mostly diffusely 

 branched, or creeping at base, soft viscid-pubescent or smooth. 



