2GG NIGHTSHADE FAMILY. 



I. NOLANA FAMILY, with few or many separate ovaries 

 collected in a circle or heap around the ba^e of a single style. Low 

 and spreading plants. 



1. XOLAXA. Calyx 5-cleft, foliaceous. Corolla short and open funnel-form, 



plaited in the 'bud. Stamens 5. Style 1: stigma capitate or club-shaped. 

 Ovaries 3 - 40, becoming 1 - 4-celled drupelets or nutlets, each cell 1-seeded. 



II. NIGHTSHADE FAMILY PROPER, with only one 2-celled 

 or sometimes 3 - 5-celled ovary as well as style, the many-seeded 

 placentae in the axis, usually much projecting into the cell. 



1. Corolla wheel-shaped, lobed or parted into 5 or sometimes more divisions, plaited 

 and valvnte or the margins turned inwards in the bud: the tube very short : 

 anthers conniving around the style : fruit a berry. 



2. LYCOPERSICUM. Like Solanum, except that the anthers are united by a 



membrane at their tips and the cells open lengthwise. Leaves pinnately 

 compound. 



3. SOLANUM. Stamens with anthers equalling or mostly longer than the very 



short filaments, usually not united, the cells opening 'by a hole at the apex. 

 (Lessons, p. 101, fig. 204, 205.) Leaves simple or pinnate. 



4. CAPSICUM. Stamens with slender filaments much longer than the short and 



separate commonly heart-shaped anthers", their cells opening lengthwise. 

 Berry sometimes dry and inflated, then becoming 1-celled. 



2. Corolla between wheel-shaped and funnel- form, plaited in the bud, the border very 

 moderately if at all lobed : anthers separate, opening lengthwise: calyx blad- 

 dery-inflated after Jlowering, enclosing the globular berry. 



5. PHYSALIS. Calyx 5-cleft. Corolla mostly somewhat 5-lobed. (Lessons, p. 



101, "fig. 206.) Stamens erect. Fruit a juicy, often edible, 2-celled berry. 



6. XICANDRA. Calyx 5-parted and angled, 'the divisions somewhat arrow- 



shaped. Corolla with widely-spreading border almost entire. Fruit a dry 

 3 - 5-celled berry. 



3. Corolla bell-shaped, funnel-form, tubular, or salver-shaped: anthers separate, 



opening lengthwise : calyx not bladdery-inflated. 

 * Calyx urn-shaped in fruit, enclosing the pod: corolla considerably irregular. 



7. HYOSCYAMUS. Calyx 5-lobed, the spreading border becoming reticulated, 



enclosing the 2-celled pod, which opens by the top falling off as a lid. Co- 

 rolla short funnel-form, with the plaited border more or less oblique and 

 unequal. Stamens declined. 



* Calyx 5-parted to near the base, the lobes foliaceous. 



8. ATROPA. Calyx with ovate divisions, in fruit enlarging and spreading under 



the globose purple berry. Corolla between bell-shaped and funnel-form, with 

 5 triangular-ovate lobes. Stamens and style somewhat declined, slender. 



9. PETUNIA. Calyx with narrow somewhat spatulate lobes much longer than 



the tube. Corolla funnel-form or somewhat salver-shaped, the 5-lobed border 

 commonly a little unequal. Stamens included in the tube, unequal. Pod 

 2-celled, 2-valved. 



* # * Calyx tubular, prismatic, or bell-shaped, 



Covering the dry pod or nearly so : corolla salver-shaped or funnel-form, the lobes 

 plaited in the bud : seeds minute. 



10. NIEREMBERGIA. Corolla with very slender thread-like tube ('-!' long), 



abruptly expanded at the narrow throat into a saucer-shaped or almost wheel- 

 shaped 5-lobed border. Stamens short, borne on the throat. Stigma kidney- 

 shaped and somewhat 2-lipped. Flowers scattered. 



11. NICOTIANA. Corolla with a regular 5-lobed border. Stamens inserted on its 



tube, included: filaments straight. Stigma capitate. Pod 2 - 4-valved from 

 the apex. Flowers more or less racemed or panicled. 



- - Calyx prismatic, falling away after flowering, leaving the 2 - 4-celled pod naked. 



12. DATURA. Corolla funnel-form, strongly plaited in the bud, and with 5 or 



more pointed teeth. (Lessons, p. 100, fig. 1'JU; p. 110, fig. 225.) Filaments 



