Acantiids Family. 129 



lower lobe emarginate; capsule 1 foot long, nearly one inch in diameter. Rich 

 soil; June-July; frequent in cultivation, rarely an escape. 



C. bignonioides Walt. Cntrilpji. Indian Bean. Similar to the preceding 

 species; leaves strong-scented; lower lobe of the corolla emarginate; capsule 

 smaller, thinner. Infrequent in cultivation, probably not an escape. (C. 

 cnudpa (L.) Karst.) 



MARTYNIACEAE Link. Unicorn-plant Family. 



Ours a densely glandular-pubescent annual herb, with opposite broadly 

 ovate or orbicular leaves, and perfect irregular whitish or yellowish race- 

 mose flowers. Calyx 4-5-cleft or 4-5-parted or cleft on the lower side. 

 Coroila-tube oblique; the limb slightly 2-lipped, of 5 nearly equal lobes. 

 Stamens with anthers 4, didynamous. Ovary 1-celled, with 2 parietal 

 placentae, or 4-cel!ed by the extension of the placentae in fruit. Repre- 

 sented with us by the genus Martynia L. 



M. proboscidea Glox. Uiucorn-PUvU. Stem much branched, stout, the 

 branches prostrate or ascending, 1-3 feet long; leaves entire, undulate or re- 

 pand, apex rounded, base cordate; calyx with 1-2 oblong or linear deciduous 

 bractlets at the base; corolla mottled with purple; fruit 4-6 inches long, body 

 straightish; beaks 2, long and strongly recurved. Alluvial soil and in waste 

 places; July-September; infrequent; Jefferson, Lion, Taylor, and Emmet 

 counties; reported from Harrison county. The species is a native of the Mis- 

 sissippi valley. Of late years it seems to assume the nature of a weed and 

 appears by the waysides and in cultivated fields. 



ACANTHACEAE ./. St. H!L Acanthus Family. 

 Mostly herbs, with opposite simple entire exstipulate leaves, and per- 

 fect bracted flowers. Calyx 4-5-parted. Corolla tubular, limb 5-lobed, 

 or 2-lipped, convolute in the bud. Stamens 4, didynamous, or only 2. 

 inserted on the corolla. Style slender; stigma 2-eleft. Ovary 2-eelled. 

 Fruit a capsule, 2-celled, 4-12-seeded. 



Ruellia. Corolla convolute in the bud, nearly regular; stamens 4. 

 Dianthera. Corolla imbricated in the bud, strongly 2-lipped; stamens Z 



RUELLIA L. Perennials with tumid joints, and showy axillary flowers. 

 Calyx 5-eleft or 5-parted; segments slender. Corolla funnelform, limb spread- 

 ing, nearly equally lobed. Stamens 4, included, didynamous; anthers 2- 

 celled. Capsule narrow, somewhat flattened. 



R. ciliosa Pursh. Stem 8-30 inches high, clothed with whitish hairs; 

 leaves sessile or nearly so, oval or ovate-obloug; flowers clustered or solitary, 

 2-bracted, nearly sessile, blue; calyx-segments filiform; corolla-tube l}- 2 -2 

 inches in length or about twice the length of the calyx-segments, throat 

 short, limb ample. Fields and borders of woods; June-September: common. 



R. strepens L. Stem 1-1 feet high, glabrous or slightly pubescent; leaves 

 ovate to oblong, petioled; calyx-lobes linear or lanceolate. Wooded ravines: 

 June-July; infrequent; Decatur. Appanoose, and Henry counties. 



DIANTI-jERA L. Ours a perennial glabrous herb, withshort-petioled or ses- 

 sile lanceolate or linear-lanceolate leaves, and pedunculate capitate-spieate 

 violet or whitish flowers. Calyx,4-5-parted, the segments narrow. Corolla-tube 

 slender, short; limb 2-lipped, upper lip entire or 2-dentate, lower lip 3-cleft, 

 spreading. Stamens 2, inserted on the throat of the corolla. Cells of the 



