120 SCROPUULARIACEAE. 



Calyx 5-parted, miieti inflated in fruit, its segments ovate, sagittate at the 

 base. Corolla obscurely 5-lobed, light blue, eampanulate. Stamens 5, in- 

 eluded. Ovary 3-5-eelled: style slender; stigma 3-5-lobed. Berry globose, 

 nearly dry. 



N. physaloides Gaertn. Applc-of-Peru. Stem 2-5 feet high, angled: 

 leaves ovate or oblong. Fields and waste places: July-,September; infre- 

 quent; .Muscatine and Fremont counties. 



LYCIUM L. Represented with us by a small shrub. Leaves smal", alter- 

 nate, entire. Calyx eampanulate, 3-5-lobed, not enlarged in fruit, persistent. 

 Stamens 5, slightly exserted. Ovary 2-eelled; style slender. Berry oval, 

 orange red. 



L. vulgare T>unal. Matrimony Vine. A low shrub, with long slender re- 

 curved branches, lanceolate oblong or spatulate leaves, and greenish-purple 

 flowers. Frequent in cultivation but rarely escaped to roadsides and waste 

 places; May-August; Muscatine, Henry. Des Moines, Lee. Appanoose, Deca- 

 tur, and Page counties. 



DATURA L. Ill-scented annuals, with ovate angulately toothed leaves, 

 and large axillary short-peduncled flowers. Calyx prismatic, deciduous in 

 fruit by a transverse scission near the base. Corolla funnelform. the limb :,- 

 toothed. Stamens 5, perfect, included. Style 1; stigma 2-lipped. Fruit a 

 spiny capsule, globular, 2 celled at the top. below 4-eelled by a false partition. 



D. stramonium L. Jimson-weed. Thorn-Apple. Stem green, ]-."i feet 

 high; corolla white. Waste grounds: June-September: frequent. 



D. tatula L. Stem purple; corolla bluish-white. With the preceding: 

 June-September; frequent. 



Lycopersicum esculentum Mill. The common tomato, is rarely found as 

 an escape in waste places. (Lycopergicon Uivoperxleon (L.) Karsten). 



SCROPHULARIACEAE Lhnll. Figwoet Family. 

 Ours herbs, with alternate or opposite pxstipulate leaves, and irregular 

 mostly 5-parted flowers. Leaves variously modified. Corolla imbricated 

 in the bud, 2-lipped or nearly regular. Stamens 2-5. inserted on the 

 tube of the corolla, didynamous or equal, 1-3 of them usually rudimenta- 

 ry. Ovary free, 2-celled; style 1, stigma 2-lobed. Fruit a 2-celled manv- 

 seeded capsule. 



Sub-order ANTIRRH'N'DEAE Bentham. Upper lip of the eoiolla usually 

 covering the lower. 



Tribe Verbasceae. Leaves alternate: flowers spieate or racemose: corolla 

 rotate, its lobes subequal. 



Verbarcum. Stamens 5. all antheriferous. 

 Tribe Ahtirt hineae. Leaves opposite: flowers racemose: corolla tubular, 

 spurred below. 



Linaria. Corolla with a slender spur: stamens4; capsule opening near the summit. 

 Tribe Cheloneae. Leaves opposite; flowers in cymose or umbel-like clus- 

 ters, often collectively paniculate; corolla tubular or irregular. 2-lipped. not 

 saccate or spurred; stamens 4 and a rudimentary fifth. 



Scbophitt,aria. Corolla small, globose, * of its lobes evert, the fifth reflex ml : fifth sta- 

 men a scale from the upper lip. 

 Penthtemun. Corolla tubular: iiftb stamen as long as the others: seeds angular wind- 

 less. 

 chelone. Calyx with three bracts .-it the base: corolla tubular, inflated, fifth stamen ' 



shorter, seeds winged. 

 Colunsia. Corolla blue and white, -i-e'.eft, saccate above, fifth stamen gland-like. 



