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SOLANACER. (NIGHTSIITADE FAMILY.) 
Herbs (rarely shrubs), with alternate leaves, regular 5-merous and 
5-androus flowers on bractless pedicels, imbricate and mostly plaited 
corolla, mostly equal stamens inserted on the corolla, single style and 
stigma, and a 2 (rarely 3 to 5) celled many-seeded pod or berry with pla- 
cent in the axis often projecting far into the cells. 
* Stamens (normally 5) all perfect: fruit a berry or at least indehiscent, sometimes 
nearly dry: seeds flattened: limb of corolla plicate or valvate (usually both). 
+ Anthers longer than filaments, connivent or connate into a cone or cylinder: 
corolla rotate: calyx unchanged in fruit. 
1. Lycopersicum. Anthers connate into a pointed cone: the cells dehiscent lon- 
gitudinally within. 
2. Solanum. Authers connivent or lightly connate; the cells opening at apex by 
pore or short slit (sometimes also longitudinally dehiscent). 
~ + Anthersuuconnected, mostly shorter than filaments, destitute of terminal pores, 
longitudinally dehiscent. 
++ Calyx not investing fruit, or much changing under it. 
3. Capsicum. Corolla rotate: anthers oblong or cordate: berry girt only at base 
by nearly unchanged calyx. 
++++ Calyx herbaceous and closely investing fruit or most of it, not angled, 
4, Chamzesaracha. Corolla rotate, 5-angulate: summit of globose berry usually 
more or less naked. 
«+ ++4+ Calyx becoming much enlarged and inflated, inclosing fruit, reticulate-veiny. 
5. Physalis. Corolla rotate or rotate-campanulate, 5-angulate or obscurely 
5-lobed: stamens not connivent, 
6. Margaranthus. Corolla urceolate-globose and 5-angular-gibbous above short 
narrow base and with minutely 5-toothed contracted orifice, including the connivent 
stamens. 
** Stamens (4 or 5) perfeet: berry and seeds as in preceding: limb of corolla imbri- 
cated in bud. 
7. Lycium. Corolla funnelform or tubular: stamens oftenexserted: berry small: 
2-celled. 
** * Stamens (5) all perfect: fruit a pod: seeds as before: limb of corolla plicate or 
imbricated in bud. 
8. Datura. Calyx prismatic or tubular, 5-toothed: corolla funnelform: pod 
prickly, more or less 4-celled. 
* * * * Stamens (mostly 5) all perfect: fruit a berry or pod: seeds little or not at all 
flattened: corolla (usually elongated) with limb induplicate-valvate or 
imbricated. 
9, Cestrum. Fruit a rather dry globular berry: seeds few, with smooth coat. 
10. Nicotiana. Fruit a pod: seeds very small and numerous, with granulate or 
rugose coat. * 
»** * * Stamens (5) conspicuously unequal: fruit a pod: seeds globular or angular, 
not compressed: limb of corolla plicate or induplicate. 
+ AlL5 stamens perfect (rarely 5th wanting), inserted low down on funnelform or 
salverform corolla, included. 
11. Petunia. Calyx 5-parted: anther-cells distinet: pod with 2 undivided valves. 
12. Bouchetia. Calyx 5-cleft, with narrow lobes: anthers connivent, their cells 
somewhat confluent: pod at length 4-valved. 
